Tesla Model S (2022 year). Manual in english — page 8
Troubleshooting Alerts
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
For more information on charging, see Charging Instructions on page 165.
(CP_a043)
Charge port door sensor fault
Charge port may not operate as expected
One of the charge port door sensors is not functioning normally. When this occurs, the charge port may be unable to
accurately sense the charge port door position and the charge port may not operate as expected.
• The charge port latch may intermittently remain engaged when the charge port door is opened.
• The charge port light may illuminate only intermittently when the charge port door is opened.
If you encounter these or similar behaviors while the alert is present, try closing the charge port door and then
opening it again to restore normal function.
For more information, see Opening the Charge Port on page 165.
For more information on charging, see Charging Instructions on page 165.
(CP_a046)
Charging equipment communication lost
Check power source and charging equipment
Charging stopped because communication between the vehicle and the external charging equipment was
interrupted.
Confirm whether the external charging equipment is powered by looking for any status lights, displays, or other
indicators on the equipment.
If the equipment is not powered, try to restore the external charging equipment’s power source.
• If attempting to charge at a public station and power is unable to be restored, contact the station operator.
• If attempting to charge at a private station (for example: charging at home) and power is unable to be restored,
contact an electrician.
If the equipment is powered, try charging the vehicle using different external charging equipment.
• If the vehicle begins charging, the issue was likely with the equipment.
• If the vehicle still does not charge, the issue may be with the vehicle.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Make sure the external charging equipment is powered.
• Try charging with multiple, different types of charging equipment.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
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Troubleshooting Alerts
(CP_a051)
Charge port may not open when pressed
Use another method to open the charge port
One of the charge port door sensors is not communicating properly. This may cause the charge port to not
recognize the request to open when the charge port door is pressed.
You can still use all other usual methods to open the charge port door:
• Request that the charge port door open using your vehicle touchscreen.
• Request that the charge port door open using your Tesla Mobile App.
• With your vehicle unlocked, press the charge handle button on any Tesla charge cable, including a Wall
Connector, Mobile Connector, or Supercharger.
• Hold and press the trunk button on your key fob.
For more information, see Opening the Charge Port on page 165.
(CP_a053)
Unable to charge - Charge station not powered
Check power source or try a different station
Charging cannot begin because the charging equipment is not ready. A charge handle is detected, but the charging
station is not communicating with the vehicle. This issue could occur because:
• The charging station is not powered.
• The control pilot signal between the charging station and the vehicle is interrupted.
Try charging the vehicle with different charging equipment or at a different charging station.
If the vehicle starts to charge, the issue was likely with the equipment.
If using a Mobile Connector or Wall Connector, first check the status lights on the front. If no status lights are visible,
check the power source and contact an electrician to inspect the building wiring connection to the wall outlet or the
Wall Connector to confirm that all wires are properly connected and torqued.
If using other external charging equipment, consult the product's owner's manual to learn how to confirm that the
station is powered. Contact an electrician to inspect the building wiring and charging equipment as necessary.
If the vehicle still does not charge, the issue may be with the vehicle.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Try charging with different charge equipment / at different stations.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
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Troubleshooting Alerts
(CP_a054)
Charge port latch not engaged
Fully insert charge cable or check for obstruction
The charge port latch is unable to latch the charge cable in the charge port inlet. If the latch is not engaged, AC
charging (for example, charging with a Mobile Connector or Wall Connector) will be limited to 16A and DC Fast
Charging / Supercharging will be unavailable.
The charge port light will pulse amber if this alert appears during AC charging and will be solid amber if this alert
appears when attempting to DC Fast Charge / Supercharge.
Try re-inserting the charge cable fully into the charge port inlet.
If your vehicle begins charging and the charge port light pulses green, the charge cable may not have been fully
inserted before. The latch may not have engaged during previous attempts because the cable was not fully inserted.
AC charging should no longer be limited, and DC Fast Charging / Supercharging should be available.
If charging is still limited or the vehicle will not charge at all, inspect the charge port inlet and the charge cable
connector for any obstructions (use a flashlight as needed). Debris and/or foreign objects in the charge port inlet or
the charge cable connector can prevent you from fully inserting the charge cable. If the cable is not fully inserted,
the charge port latch will not engage.
It is recommended that any debris / foreign objects be removed. Afterward, try re-inserting the cable into the charge
port inlet. AC charging should no longer be limited, and DC Fast Charging / Supercharging should be available.
If charging is still limited or the vehicle will not charge at all, make sure the charge port latch manual release cable
(located on the left-hand side in the trunk) has not been pulled. Make sure the handle (usually ring-shaped or a
strap) for the manual release cable is free of obstructions and that nothing is attached to it (like a cargo net or
umbrella). Attaching anything to the handle for the manual release cable may keep the charge port latch from
engaging. For more information on the charge port latch manual release, see #unique_634 on page .
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Make sure the charge cable is fully inserted during charging.
• Make sure any charge port inlet obstruction has been removed.
• Make sure the handle for the charge port latch manual release (located on the left-hand side in the trunk) is free
of obstructions.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
For more information on charging, see Charging Instructions on page 165.
(CP_a055)
Charging equipment communication lost
Check power source and charging equipment
Charging stopped because communication between the vehicle and the external charging equipment was
interrupted.
Confirm whether the external charging equipment is powered by looking for any status lights, displays, or other
indicators on the equipment.
If the equipment is not powered, try to restore the external charging equipment’s power source.
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Troubleshooting Alerts
• If attempting to charge at a public station and power is unable to be restored, contact the station operator.
• If attempting to charge at a private station (for example: charging at home) and power is unable to be restored,
contact an electrician.
If the equipment is powered, try charging the vehicle using different external charging equipment.
• If the vehicle begins charging, the issue was likely with the equipment.
• If the vehicle still does not charge, the issue may be with the vehicle.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Make sure the external charging equipment is powered.
• Try charging with multiple, different types of charging equipment.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
(CP_a056)
Charging stopped - Charge cable disconnected
Close charge port - Press brake pedal and retry
Charging has stopped because your vehicle has detected that the connection between the charge port and charge
cable has been unexpectedly interrupted.
Before disconnecting a charge cable, make sure you first stop charging.
With some external charging equipment, charging may be stopped by pressing the button on the charge handle.
You can also stop charging from your vehicle touchscreen, your Tesla Mobile App, or the charging station.
For more information, see Stopping Charging on page 167.
For more information on charging, see Charging Instructions on page 165.
(CP_a057)
Charging equipment reports error
Check equipment for error code or message
Charging was interrupted because the external charging equipment has reported a fault that prevents the vehicle
from charging.
Inspect the external charging equipment and look for status lights, displays, or other status indicators on the
equipment. Consult the equipment owner’s manual for further troubleshooting instructions.
Try charging the vehicle with different charging equipment or at a different charging station.
• If the vehicle starts to charge, the issue was likely with the equipment.
• If the vehicle still does not charge, the issue may be with the vehicle.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
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Troubleshooting Alerts
• Try charging with different charge equipment / at different stations.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
(CP_a058)
Unable to AC charge - Unplug and retry
Or try DC Fast Charging / Supercharging
Your vehicle is unable to AC charge because it has detected one of the following conditions and has tried to charge
too many times without success:
• The charge port is unable to detect whether a charge cable is inserted or detect the type of charge cable
connected.
• Your vehicle is unable to sense a valid pilot control signal coming from the charging station, so it cannot
communicate effectively with the external charging equipment.
• Communication between your vehicle and the external charging equipment has been interrupted.
• The external charging equipment has reported an error that prevents your vehicle from charging.
When this alert is present, there will always be at least one other alert present that identifies a more specific
condition.
For more information and troubleshooting suggestions, it is recommended that you check in your vehicle
touchscreen for other recent alerts that involve charging.
(CP_a066)
Charging equipment not ready
See equipment instructions to start charging
Charging cannot begin because the charging station is communicating to your vehicle that either the external
charging equipment is not ready or charging is not authorized. The control pilot signal that communicates between
the charging station and your vehicle indicates that your vehicle is not allowed to start charging. This could occur
because:
• The charging station is actively delaying charging. For example, this can happen because the station has a
scheduled charging feature activated.
• The charging station requires further activation before the charge session can begin. Some additional
authentication may be needed before the station will start charging your vehicle.
◦ For example: a charging card, a mobile app, or a credit card may be required.
Check the charging station for any instructions that explain the steps necessary to enable charging. For example,
look for a touchscreen terminal, LED status indicators, printed instructions, or a payment interface that might
provide guidance. If you cannot enable charging on the current charging station, try charging the vehicle with
different charging equipment or at a different charging station.
• If the vehicle starts to charge, the issue was likely with the equipment.
• If the vehicle still does not charge, the issue may be with the vehicle.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
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Troubleshooting Alerts
• Try charging with different charge equipment / at different stations.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
For more information on charging, see Charging Instructions on page 165.
(CP_a078)
Cable blocked - Charge port latch may be frozen
Try using Defrost Car button in Mobile App
The charge port latch cannot unlatch the charge cable, and cold ambient temperature is detected.
To remove any strain on the cable, re-insert the charge cable fully into the charge port inlet. Try again to unlatch the
charge cable.
If the charge cable still cannot be removed, the charge port latch may be frozen.
Press the Defrost Car button in your Tesla Mobile App to defrost your vehicle for approximately 30 - 45 minutes. This
should help thaw any ice on the charge port latch so the charge cable can be removed.
NOTE: Be sure to use Defrost Car in your Mobile App to defrost your vehicle. Adjusting the climate control settings
in your vehicle's touchscreen will not be as effective.
If the charge cable still cannot be removed, try the manual release cable in your vehicle’s trunk.
1. Make sure your vehicle is not actively charging.
◦ In your vehicle touchscreen, access the charging screen.
◦ If necessary, press Stop Charging.
2. Open the rear trunk.
3. Pull the charge port release cable downwards to unlatch the charge cable.
◦ Note: The release cable is located on the left hand side of the rear trunk. It may be recessed within a small
opening of the trunk interior trim.
4. Pull the charge cable from the charge port.
For more information on using the manual release cable, see Manually Releasing Charge Cable on page 169.
For more information on charging, see Charging Instructions on page 165.
(CP_a079)
Charge rate reduced - Charge port may be frozen
Try using Defrost Car button in Mobile App
The charge port latch is unable to secure the charge cable in the charge port inlet, and cold ambient temperature is
detected. If the latch is not engaged, AC charging (for example, charging with a Mobile Connector or Wall
Connector) will be limited to 16A and DC Fast Charging / Supercharging will be unavailable.
The charge port light will pulse amber if this alert appears during AC charging, and it will be solid amber if this alert
appears when attempting to DC Fast Charge / Supercharge.
Try re-inserting the charge cable fully into the charge port inlet.
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Troubleshooting Alerts
If your vehicle begins charging and the charge port light pulses green, the charge cable may not have been fully
inserted before. The latch may not have engaged during previous attempts because the cable was not fully inserted.
AC charging should no longer be limited, and DC Fast Charging / Supercharging should be available.
If charging is still limited or the vehicle will not charge at all, make sure the charge port latch manual release cable
(located on the left-hand side in the trunk) has not been pulled. Make sure the handle (usually ring-shaped or a
strap) for the manual release cable is free of obstructions and that nothing is attached to it (like a cargo net or
umbrella). Attaching anything to the handle for the manual release cable may keep the charge port latch from
engaging. For more information on the charge port latch manual release, see #unique_634 on page .
If charging is still limited or the vehicle will not charge at all, inspect the charge port inlet and the charge cable
connector for any obstructions (use a flashlight as needed). Debris and/or foreign objects in the charge port inlet or
the charge cable connector can prevent you from fully inserting the charge cable. If the cable is not fully inserted,
the charge port latch will not engage.
It is recommended that any debris / foreign objects be removed. Afterward, try re-inserting the cable into the charge
port inlet. AC charging should no longer be limited, and DC Fast Charging / Supercharging should be available.
If you have checked for and cleared any debris or foreign objects, but charging is still limited or your vehicle will not
charge at all, the charge port latch may be frozen. Press the Defrost Car button in your Tesla Mobile App to defrost
your vehicle for approximately 30 - 45 minutes. This should help thaw any ice on the charge port latch so the charge
cable can be properly inserted.
NOTE: Be sure to use Defrost Car in your Mobile App to defrost your vehicle. Adjusting the climate control settings
in your vehicle's touchscreen will not be as effective.
As this alert usually indicates a temporary condition due to cold ambient temperature or a charge port inlet
obstruction, and it does not typically indicate an issue with your vehicle that can be resolved by scheduling service,
it is recommended that you:
• Make sure the charge cable is fully inserted during charging.
• Make sure the handle for the charge port latch manual release (located on the left-hand side in the trunk) is free
of obstructions.
• Make sure any charge port inlet obstruction has been removed.
• Press the Defrost Car button in your Tesla Mobile App to defrost your vehicle for approximately 30 - 45 minutes
before trying to charge again.
If the alert remains present, limited AC charging should still be available.
For more information on charging, see Charging Instructions on page 165.
(CP_a101)
Charge rate reduced - Wall connection hot
Outlet or Wall Connector wiring must be checked
High temperature detected by Wall Connector alerts indicate the building connection to the Wall Connector is
getting too warm, so charging has been slowed to protect the wiring and Wall Connector.
This is not typically an issue with your vehicle or your Wall Connector, but rather an issue with the building wiring.
This may be caused by a loose building wiring connection to the Wall Connector and can be fixed quickly by an
electrician.
To regain normal charge speed, contact an electrician to inspect the building wiring connection to the Wall
Connector. They should make sure that all wires are properly connected and torqued according to the installation
guide for the Wall Connector.
Wall Connector installation guides can be found here.
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Troubleshooting Alerts
(CP_a102)
Unable to charge - Wall connection too hot
Outlet or Wall Connector wiring must be checked
High temperature detected by Wall Connector alerts indicate the building connection to the Wall Connector is
getting too warm, so charging has stopped to protect the wiring and Wall Connector.
This is not typically an issue with your vehicle or your Wall Connector, but rather an issue with the building wiring.
This may be caused by a loose building wiring connection to the Wall Connector and can be fixed quickly by an
electrician.
To regain normal charge operation, contact an electrician to inspect the building wiring connection to the Wall
Connector. They should make sure that all wires are properly connected and torqued according to the installation
guide for the Wall Connector.
Wall Connector installation guides can be found here.
(CP_a143)
Charging adapter has electric arc flash hazard
Use different charging equipment
Charging is unavailable because your vehicle has detected an electric arc flash hazard in the third-party charging
adapter used to connect a Combined Charging System (CCS) charge handle to your vehicle’s charge port.
An electric arc flash can occur if you attempt to unplug while actively charging with the third-party charging
adapter, and an electric arc flash can cause serious bodily injury and/or property damage.
Follow the steps below to mitigate this risk:
1. Make sure charging is completely stopped.
a. Use your vehicle touchscreen to confirm charging has stopped, or to stop charging if necessary.
b. Use the charging station display and controls to confirm charging has stopped, or to end any active charging
session.
2. Make sure no flashing green or blue light (LED) is visible on your vehicle’s charge port.
3. Unplug the charging adapter from your vehicle’s charge port.
4. Confirm again that the charging station indicates no active charging session.
5. Unplug the charging adapter from the charge handle.
Use different charging equipment to charge your vehicle. For more information on charging, see Charging
Instructions on page 165.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
(DI_a175)
Cruise control unavailable
Cruise Control, including Tra c-Aware Cruise Control, is currently unavailable. Take control and drive your vehicle
manually.
Continue to your destination. Your vehicle is OK to drive.
Cruise Control might become unavailable due to many factors, including:
• Driver input or behavior:
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Troubleshooting Alerts
◦ Unbuckling the driver’s seat belt
◦ Not closing the doors, front trunk, or trunk
◦ Canceling a Cruise Control request
◦ Trying to activate Cruise Control below minimum speed of 18mph (30 km/h)
• Environmental / external conditions
• Vehicle System Restraints:
◦ May include lack of visibility
• Valet Mode is active:
◦ For more information, see Valet Mode on page 45.
When any condition preventing Cruise Control activation is no longer present, Cruise Control should be available.
If this alert persists throughout subsequent drives, schedule service at your convenience. Your vehicle is OK to drive
in the meantime.
For more information, see Tra c-Aware Cruise Control on page 84.
(DI_a184)
Autopark canceled
Take control
Autopark has been canceled. You need to park or finish parking your vehicle manually.
Once the parking maneuver is complete, apply the brakes and shift into Park. Your vehicle will otherwise remain free-
rolling.
Autopark can be canceled due to many factors, including the following:
• Driver input or behavior
◦ Moving the steering yoke
◦ Pressing the accelerator pedal
◦ Pressing the brake pedal
◦ Opening a door and/or exiting the vehicle
◦ Pressing the Cancel button on the touchscreen
• Environmental / external conditions
◦ Steep slope / grade
◦ Weather conditions affecting visibility
◦ Curb cannot be detected
• A trailer is attached to the vehicle
• Vehicle system constraints
Autopark should be available again during your next drive.
If this alert persists throughout subsequent drives, schedule service at your earliest convenience. Your vehicle is OK
to drive in the meantime.
For more information, see To Cancel Parking on page 104 and Limitations on page 104.
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Troubleshooting Alerts
(DI_a185)
Autopark aborted
Autopark has aborted and the Electronic Parking Brake has been applied. You need to park or finish parking your
vehicle manually.
Once the parking maneuver is complete, apply the brakes and shift into Park. Your vehicle will otherwise remain free-
rolling.
Autopark can abort due to many factors, including the following:
• Driver input or behavior
◦ Using the gear stalk
◦ Moving the steering yoke
◦ Pressing the accelerator pedal
◦ Pressing the brake pedal
◦ Opening a door and/or exiting the vehicle
◦ Pressing the Cancel button on the touchscreen
• Environmental / external conditions
◦ Steep slope / grade
◦ Weather conditions affecting visibility
◦ Curb cannot be detected
• A trailer is attached to the vehicle
• Vehicle system constraints
Autopark should be available again during your next drive.
If this alert persists throughout subsequent drives, schedule service at your earliest convenience. Your vehicle is OK
to drive in the meantime.
For more information, see To Cancel Parking on page 104 and Limitations on page 104.
(DI_a201)
Limited deceleration when accelerator is released
OK to drive - Use brake pedal as needed
Regenerative braking performance is temporarily reduced. The expected amount of automatic deceleration is not
available when you lift your foot off the accelerator pedal while driving.
Your vehicle is OK to drive.
Use the brake pedal as needed to slow your vehicle, similar to the way you would apply the brakes in a gas-powered,
non-electric vehicle (a vehicle with no regenerative braking to provide automatic deceleration).
This alert may occur when:
• High voltage battery is near full charge:
◦ Regenerative braking is reduced when the battery is at 95% charge or higher.
• High voltage battery is cold:
◦ The battery may not be warm enough for full regenerative braking performance.
◦ This can happen at the beginning of a drive. It may happen frequently in colder climates.
Driving your vehicle will usually clear this alert, because it should reduce the battery charge below 95% and/or
su ciently heat the battery.
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Troubleshooting Alerts
NOTE: In colder climates, this alert may remain present indefinitely and automatic deceleration may remain limited,
as driving your vehicle may not heat the battery enough to restore full performance of the automatic deceleration
feature. This alert, by itself, does not typically indicate a condition requiring service.
For more information, see Regenerative Braking on page 65.
(DI_a245)
Vehicle Hold feature unavailable
Keep brake pedal pressed while stopped
Vehicle Hold is currently unavailable due to system constraints. When stopping, use the brake pedal to bring your
vehicle to a complete stop and keep your vehicle stationary.
Continue to your destination. Your vehicle is OK to drive.
If Vehicle Hold is not available during your next drive, contact Tesla Service. Your vehicle is OK to drive in the
meantime.
For more information, see Vehicle Hold on page 70.
(ESP_a118)
Assist for low brake performance activated
To stop, keep brake pedal firmly pressed
Hydraulic Fade Compensation is active. This brake assist function activates temporarily to make sure you have full
braking capability in conditions where reduced braking performance is detected by your vehicle.
Continue to press the brake pedal as you normally would, and do not "pump" (repeatedly press and release) the
pedal as this will interrupt the function.
This alert will clear when your vehicle comes to a stop or you are no longer pressing the brake pedal. It may still be
displayed for up to 5 seconds afterward.
When this assist function activates, you may feel the brake pedal pull away from your foot and notice a strong
increase in brake pressure. You may also hear a pumping sound coming from the brake hydraulic unit at the front of
the vehicle. This will usually last for a few seconds, depending on road surface and vehicle speed. This is completely
normal and does not indicate any issue with your vehicle.
Reduced braking performance is usually temporary, and can occur for a number of reasons including high brake
temperatures after heavy brake use, or driving in extremely cold or wet conditions. It can also indicate that your
brake pads or rotors have worn to the point that normal replacement is needed.
If you continue to experience reduced braking performance which does not improve over time, please contact Tesla
service at your convenience for a brake inspection.
For more information, see Hydraulic Fade Compensation on page 64.
(PCS_a016)
Cannot charge - Poor grid power quality possible
Retry / Try other charge location or Supercharging
Charging has stopped due to a condition that prevents your vehicle from charging with AC power. DC fast charging /
Supercharging should still function as expected.
This condition could occur due to power supply disturbances caused by the external charging equipment or by the
electrical power grid. In some cases, this condition can even result from turning on nearby electric devices that draw
a lot of power.
If these possible causes can be ruled out, then a condition with your vehicle itself may also be affecting AC charging.
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Troubleshooting Alerts
This alert may be accompanied by another alert that specifies the condition affecting AC charging. If so, it is
recommended you start by investigating that alert.
Further troubleshooting tips based on equipment type:
• If using a Mobile Connector, try charging your vehicle with a different wall outlet.
◦ If your vehicle starts to charge and continues to charge as expected, the issue was likely with the original wall
outlet. It is recommended that you contact an electrician to inspect the building wiring connection to that
outlet.
◦ If your vehicle still does not start to charge, or does not continue to charge as expected, the issue may be with
the Mobile Connector or the electrical grid.
• If using a Wall Connector, try charging your vehicle with different charging equipment like a Mobile Connector
powered by a separate wall outlet.
◦ If your vehicle starts to charge and continues to charge as expected, the issue was likely with the Wall
Connector. Contact an electrician to inspect the building wiring connection to the Wall Connector. They should
make sure that all wires are properly connected and torqued according to the installation guide for the Wall
Connector.
As this alert may be present due to external charging equipment and power sources, it is recommended that you:
• Try charging with different wall outlets.
• Try charging with multiple, different types of charging equipment at different locations.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
If this alert persists when attempting to charge at multiple locations and with different charging equipment, it is
recommended that you schedule service.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
(PCS_a017)
Charging stopped - Power lost while charging
Check power source and charging equipment
Power has been lost during charging. This could result from the charging equipment losing power from the source
(for example, a wall outlet) or from an issue with the charging equipment.
This alert is often accompanied by other alerts that can help you identify and troubleshoot the issue. Start by
investigating any other displayed alerts that relate to charging issues.
Alternatively, you can check Mobile Connector or Wall Connector status lights to confirm power to the device, and
also refer to the product owner’s manual for troubleshooting information based on blink codes. If using other (non-
Tesla) external charging equipment, check for a display or other user interface that provides troubleshooting help.
If there is clearly no power to the charging equipment, check the circuit breaker for the wall outlet / Wall Connector
to make sure it has not tripped.
Further troubleshooting tips based on equipment type:
• If using a Mobile Connector, try charging the vehicle with a different wall outlet.
◦ If the vehicle starts to charge, the issue was likely with the original wall outlet. It is recommended that you
contact an electrician to inspect the building wiring connection to that outlet.
◦ If the vehicle still does not charge, the issue may be with the Mobile Connector.
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Troubleshooting Alerts
• If using a Wall Connector, try charging the vehicle with different charging equipment like a Mobile Connector
powered by a separate wall outlet.
◦ If the vehicle starts to charge, the issue was likely with the Wall Connector. Contact an electrician to inspect
the building wiring connection to the Wall Connector. They should make sure that all wires are properly
connected and torqued according to the installation guide for the Wall Connector.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Try charging with different wall outlets.
• Try charging with different charging equipment.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
(PCS_a019)
Power grid or vehicle issue limiting AC charging
Unplug and retry / Try different charging location
Charging speed has been reduced due to a condition that affects your vehicle’s ability to charge with AC power. DC
fast charging / Supercharging should still function as expected.
This condition could occur due to power supply disturbances caused by the external charging equipment or by the
electrical power grid. In some cases, this condition can even result from turning on nearby electric devices that draw
a lot of power.
If these possible causes can be ruled out, then a condition with your vehicle itself may also be affecting AC charging.
This alert may be accompanied by another alert that specifies the condition affecting AC charging. If so, it is
recommended you start by investigating that alert.
Further troubleshooting tips based on equipment type:
• If using a Mobile Connector, try charging your vehicle with a different wall outlet.
◦ If charging speed is no longer reduced, the issue was likely with the original wall outlet. It is recommended that
you contact an electrician to inspect the building wiring connection to that outlet.
◦ If charging speed is still reduced, the issue may be with the Mobile Connector or the electrical grid.
• If using a Wall Connector, try charging your vehicle with different charging equipment like a Mobile Connector
powered by a separate wall outlet.
◦ If charging speed is no longer reduced, the issue was likely with the Wall Connector. Contact an electrician to
inspect the building wiring connection to the Wall Connector. They should make sure that all wires are
properly connected and torqued according to the installation guide for the Wall Connector.
As this alert may be present due to external charging equipment and power sources, it is recommended that you:
• Try charging with different wall outlets.
• Try charging with multiple, different types of charging equipment at different locations.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
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Troubleshooting Alerts
If this alert persists when attempting to charge at multiple locations and with different charging equipment, it is
recommended that you schedule service.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
(PCS_a032)
Poor electric grid power quality detected
Try different charging station or location
Charging speed has been reduced or charging has been interrupted due to a condition that affects your vehicle’s
ability to charge with AC power. DC fast charging / Supercharging should still function as expected.
The onboard charger in your vehicle has detected power supply disturbances in the electrical power grid. These
disturbances interfere with your vehicle's charging process.
Typical causes of these power supply disturbances include:
• Issues with the building wiring and/or the wall outlet.
• Issues with the external charging equipment.
• Other large electric devices, such as washing machines or air conditioning units, that temporarily draw a lot of
power or otherwise disturb the electrical power grid.
• External conditions affecting the electrical power grid.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Try charging with different wall outlets.
• Try charging again (disconnect and reconnect to retry) when other large electric devices are not drawing power.
• Try charging with multiple, different types of charging equipment at different locations.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
(PCS_a052)
External charging equipment not providing power
Check power source or try different equipment
Charging cannot begin due to a condition that prevents your vehicle from charging with AC power. DC fast
charging / Supercharging should still function as expected.
Your vehicle has requested AC power from the external charging equipment, but the onboard charger does not
detect any supply voltage coming from the equipment.
This can sometimes be caused by a hardware issue specific to the external charging equipment, which prevents the
charging equipment from switching power to the vehicle on or off when requested. It could also occur due to
another condition affecting the external charging equipment, the power source it is connected to, or your vehicle
itself.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you try charging with
multiple, different types of charging equipment.
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Troubleshooting Alerts
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
(PCS_a053)
Charge rate reduced - Unexpected voltage drop
Remove extension cords / Have wiring inspected
Charging speed has been reduced because the onboard charger in your vehicle has detected a large voltage drop
during charging.
Likely causes of this issue include:
• Problems with the building wiring and/or the wall outlet.
• An extension cord or other wiring that cannot support the requested charge current.
This issue can also result from turning on electric devices that draw a lot of power from the same branch circuit
while the vehicle is charging.
If this issue has occurred multiple times at your normal charging location, contact an electrician to inspect the
electrical installation. They should check the following:
• Any installed charging equipment and its connection to the building wiring.
• The building wiring, including any wall outlet used with a Mobile Connector.
• The electrical connection to the power utility line where it enters the building.
Discuss with the electrician whether the charge current on the vehicle should be lowered, or if the installation should
be upgraded to support a higher charge current.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Try charging with multiple, different types of charging equipment at different locations.
• Contact an electrician to inspect the wiring and equipment at your normal charging location.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
(PCS_a054)
Charging stopped due to large voltage drop
Remove extension cords / Have wiring inspected
Charging has been interrupted because the onboard charger in your vehicle has detected an unusually large voltage
drop.
Likely causes of this issue include:
• Problems with the building wiring and/or the wall outlet.
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Troubleshooting Alerts
• An extension cord or other wiring that cannot support the requested charge current.
This issue can also result from turning on electric devices that draw a lot of power from the same branch circuit
while the vehicle is charging.
If this issue has occurred multiple times at your normal charging location, contact an electrician to inspect the
electrical installation. They should check the following:
• Any installed charging equipment and its connection to the building wiring.
• The building wiring, including any wall outlet used with a Mobile Connector.
• The electrical connection to the power utility line where it enters the building.
Discuss with the electrician whether the charge current on the vehicle should be lowered, or if the installation should
be upgraded to support a higher charge current.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Try charging with multiple, different types of charging equipment at different locations.
• Contact an electrician to inspect the wiring and equipment at your normal charging location.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
(PCS_a073)
External charging equipment error detected
Try different charging equipment
AC charging cannot begin due to a condition that prevents your vehicle from charging with AC power. DC fast
charging / Supercharging should still function as expected.
Your vehicle's onboard charger is detecting input voltage at the charge port when no power has been requested
from the external charging equipment, which indicates the external charging equipment is not functioning as
expected.
This can sometimes be caused by a hardware issue specific to the external charging equipment, which prevents the
charging equipment from switching power to the vehicle on or off when requested. It could also occur due to
another condition affecting the external charging equipment, or a condition affecting your vehicle itself.
As this alert is usually specific to external charging equipment, and it does not typically indicate an issue with your
vehicle that can be resolved by scheduling service, it is recommended that you try charging with multiple, different
types of charging equipment.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
Consumer Information
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Troubleshooting Alerts
(PCS_a090)
Charging slowed - Some AC phases not powered
Check power source and charging equipment
Charging speed has been reduced due to a condition that affects your vehicle’s ability to charge with AC power. DC
fast charging / Supercharging should still function as expected.
Your vehicle's onboard charger has detected that one or more power converters is not receiving the necessary AC
input voltage. For example: during three-phase charging, one phase might be missing from the AC input power
provided by the external source. This could occur due to a condition affecting the external charging equipment, the
power source it is connected to, or your vehicle itself.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you try charging with
multiple, different types of charging equipment.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's
manufacturer's provided documentation for troubleshooting tips.
(UI_a006)
Service is required
Schedule service now
This alert is set remotely by Tesla when a condition requiring service is detected on your vehicle.
This alert can be set due to various conditions. When you schedule service, more information should be available.
This alert can only be cleared by a service technician after your vehicle has been serviced.
As this alert can be present due to various conditions, it is recommended that you schedule service at your earliest
convenience.
(UI_a137)
Active service connection to vehicle
Service performing remote diagnostics
A service technician is remotely logged into your vehicle for diagnosis or repair. You may notice some loss of
Infotainment functionality while the connection persists, but this alert does not indicate an issue with your vehicle.
Your vehicle is OK to drive.
This alert should clear automatically after the technician completes vehicle diagnosis or repair. You may find it
necessary to restart your touchscreen to restore full Infotainment functionality after the alert has cleared. For more
information, see Restarting the Touchscreen in your vehicle's Do It Yourself Guide.
If this alert does not clear after 24 hours, it is recommended that you schedule service via your Tesla Mobile App or
with an independent service provider. Please note that independent service provider options may vary, based on
your vehicle configuration and your location.
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Troubleshooting Alerts
(UMC_a001)
Unable to charge with Mobile Connector
Inadequate outlet grounding - Try another outlet
The Mobile Connector has detected that the electrical outlet has insu cient grounding, likely caused by an
inadequate or missing ground connection. This does not indicate an issue with your Mobile Connector or vehicle, but
instead points to an issue with the wall outlet / electrical installation the Mobile Connector is connected to.
Have the electrical installation inspected by an electrician. Your electrician should make sure there is proper
grounding at your circuit breaker or power distribution box, and also make sure that appropriate connections are
made to the outlet, before you attempt to plug in the Mobile Connector again.
If you need to charge in the meantime, it is recommended that you try charging using a different outlet, at another
location, or with another type of charging station.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
(UMC_a002)
Unable to charge - Mobile Connector GFCI tripped
Unplug charge handle from charge port and retry
The vehicle cannot charge because the ground-fault circuit interrupter (GFCI) in the Mobile Connector has tripped.
Like the GFCI in a wall outlet, this feature is designed to stop the flow of electricity when there is a problem. It has
interrupted charging to protect your vehicle and the charging equipment.
This could happen for many reasons. The problem could be in the charge cable, the charge handle, the charge port,
or even an onboard vehicle component.
Inspect the charge port as well as the charge handle for pooled water or unusual levels of moisture.
• If you find excessive moisture, wait and let both the inside area of the charge port and the exposed portion of the
charge handle dry su ciently before trying again.
Inspect the charge equipment for damage.
• If the cable is in any way damaged or deteriorated, do not use it. Try different charging equipment instead.
• If the cable is in good condition, try charging again with the same Mobile Connector.
If the issue persists and prevents charging, try charging with different charging equipment.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Try charging with multiple, different types of charging equipment.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
Consumer Information
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Troubleshooting Alerts
(UMC_a004)
Unable to charge with Mobile Connector
Voltage too high / Try a different wall outlet
The vehicle cannot charge, or charging is interrupted, because either the Mobile Connector:
• Detects the wall outlet voltage is too high.
OR
• Detects an unexpected increase in supply voltage from the wall outlet.
Try charging the vehicle with a different wall outlet.
If the vehicle starts to charge, the issue was likely with the original wall outlet. It is recommended that you contact
an electrician to inspect the building wiring connection to that outlet.
If the vehicle still does not charge when you try a different wall outlet, try charging at a different location.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Try charging with different wall outlets.
• Try charging with different charging equipment.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
(UMC_a005)
Unable to charge with Mobile Connector
Voltage too low / Try a different wall outlet
The vehicle cannot charge, or charging is interrupted, because either the Mobile Connector:
• Does not detect enough supply voltage from the wall outlet.
OR
• Detects an unexpected drop in supply voltage from the wall outlet.
Try charging the vehicle with a different wall outlet.
If the vehicle starts to charge, the issue was likely with the original wall outlet. It is recommended that you contact
an electrician to inspect the building wiring connection to that outlet.
If the vehicle still does not charge when you try a different wall outlet, try charging at a different location.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Try charging with different wall outlets.
• Try charging with different charging equipment.
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Troubleshooting Alerts
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
(UMC_a007)
Mobile Connector control box temperature high
Let Mobile Connector cool to resume charging
Charging has been interrupted because the Mobile Connector has detected a high temperature inside its control box
housing.
Make sure the Mobile Connector is not covered by anything, and that there is no heat source nearby. If the problem
persists in normal ambient temperatures (under 100°F or 38°C), service is required.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
(UMC_a008)
Unable to charge - Wall plug temperature high
Wall outlet and wiring inspection recommended
High temperature detected by Mobile Connector alerts indicate the outlet used to charge is becoming too warm, so
charging has stopped to protect the outlet.
This is not typically an issue with your vehicle or your Mobile Connector, but rather an issue with the outlet. A warm
outlet may be caused by a plug that is not fully inserted, a loose building wiring connection to the outlet, or an
outlet that is beginning to wear out.
To regain normal charge operation, make sure your adapter is fully plugged into the outlet. If charging speed does
not return to normal, contact an electrician to inspect the outlet and building wiring connections to the outlet and
complete any repairs needed.
If the outlet is worn, it should be replaced with a high-quality outlet. Consider upgrading to a Tesla Wall Connector
for greater convenience and highest charging speed.
(UMC_a009)
Cannot charge - Charge handle temperature high
Check charge handle or charge port for debris
Charging has been interrupted because the Mobile Connector has detected a high temperature in the charge handle
that connects to your vehicle's charge port.
Make sure the Mobile Connector is fully inserted into your vehicle's charge port inlet.
You should also inspect the charge port inlet and the Mobile Connector handle for any obstructions (use a flashlight
as necessary). Debris or foreign objects present in the charge port inlet or the Mobile Connector handle can cause
increased temperatures during charging.
It is recommended that any debris / foreign objects be removed. Afterward, try re-inserting the Mobile Connector
handle into the charge port. Once the Mobile Connector handle temperature has decreased and any obstruction has
been removed, the alert should clear and charging should be possible.
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Troubleshooting Alerts
Also make sure the charge handle of the Mobile Connector is not covered by anything, and that there is no heat
source nearby.
If the alert persists in normal ambient temperatures (under 100°F or 38°C), and continues to occur during multiple
charging attempts, this may indicate a condition affecting the Mobile Connector or your vehicle. It is recommended
that you schedule service at your convenience.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
(UMC_a010)
Mobile Connector to adapter connection hot
Let cool - Plug adapter fully into Mobile Connector
Charging has been interrupted because the Mobile Connector has detected a high temperature at the connection
between the wall plug adapter and the control box.
Make sure the wall plug adapter is fully connected to the Mobile Connector control box.
After unplugging from the power source (wall outlet), you should also inspect the wall plug adapter connection and
the Mobile Connector control box connection for any obstructions (use a flashlight as necessary). Debris or foreign
objects present where the wall plug adapter and the Mobile Connector control box connect can cause increased
temperatures during charging.
It is recommended that any debris / foreign objects be removed. Afterward, try re-inserting the wall plug adapter
into the Mobile Connector and then connecting to the power source (wall outlet). Once the Mobile Connector
control box temperature has decreased and any obstruction has been removed, the alert should clear and charging
should possible.
Also make sure the wall plug adapter is not covered by anything, and that there is no heat source nearby. If the issue
persists in normal ambient temperatures (under 100°F or 38°C), service is required.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
(UMC_a011)
Charging equipment communication error
Try again or try different equipment
Your vehicle is unable to charge because it cannot communicate effectively with the Mobile Connector. The Mobile
Connector cannot confirm via proximity detection that the charge handle is fully connected to your vehicle.
First, confirm the lack of effective communication is caused by the Mobile Connector rather than an issue with your
vehicle. This is usually the case.
To confirm this, try charging the vehicle using different external charging equipment.
• If the vehicle begins charging, the issue was likely with the Mobile Connector.
• If the vehicle still does not charge, the issue may be with the vehicle.
If the issue is suspected to be with the vehicle, inspect the charge port inlet and the Mobile Connector handle for any
obstructions (use a flashlight as necessary). Debris, moisture, and/or foreign objects present in the charge port inlet
or the Mobile Connector handle can prevent the vehicle from properly communicating with the Mobile Connector.
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Troubleshooting Alerts
It is recommended that any debris / foreign objects be removed and any moisture be allowed to dry. Afterward, try
re-inserting the Mobile Connector handle into the charge port. Charging should now be possible.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Try charging with multiple, different types of charging equipment.
• Make sure any charge port inlet or charge handle obstruction has been removed.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
For more information on charging, see Charging Instructions on page 165.
(UMC_a012)
Charging equipment communication error
Try again or try different equipment
Your vehicle is unable to charge because it cannot communicate effectively with the Mobile Connector. The Mobile
Connector detects that it cannot generate or maintain a valid control pilot signal.
First, confirm the lack of effective communication is caused by the Mobile Connector rather than an issue with your
vehicle. This is usually the case.
To confirm this, try charging the vehicle using different external charging equipment.
• If the vehicle begins charging, the issue was likely with the Mobile Connector.
• If the vehicle still does not charge, the issue may be with the vehicle.
If the issue is suspected to be with the vehicle, inspect the charge port inlet and the Mobile Connector handle for any
obstructions (use a flashlight as necessary). Debris, moisture, and/or foreign objects present in the charge port inlet
or the Mobile Connector handle can prevent the vehicle from properly communicating with the Mobile Connector.
It is recommended that any debris / foreign objects be removed and any moisture be allowed to dry. Afterward, try
re-inserting the Mobile Connector handle into the charge port. Charging should now be possible.
As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate
an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:
• Try charging with multiple, different types of charging equipment.
• Make sure any charge port inlet or charge handle obstruction has been removed.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
For more information on charging, see Charging Instructions on page 165.
Consumer Information
253
Troubleshooting Alerts
(UMC_a013)
Wall plug adapter error - Charge rate reduced
Plug adapter fully into Mobile Connector and retry
Your Mobile Connector is unable to communicate with the wall plug adapter. Because your Mobile Connector cannot
monitor the wall plug adapter temperature, charge current is automatically reduced to 8A.
It is recommended that you try the following troubleshooting steps:
1. Unplug your Mobile Connector, including the wall plug adapter, completely from the wall outlet.
2. Make sure the connection between the wall plug adapter and the main body of your Mobile Connector is secure.
a. Disconnect the wall plug adapter completely from the main body of your Mobile Connector.
b. Fully reinsert the wall plug adapter into the main body of your Mobile Connector by pushing it into the socket
until it snaps into place.
3. Try charging again by plugging the Mobile Connector, including wall plug adapter, fully into the wall outlet.
4. If the alert persists, try using a different wall plug adapter (see steps above to make sure the adapter is fully
connected to your Mobile Connector).
a. If the alert is no longer present, the issue is likely with the wall plug adapter you were using previously.
b. If the alert persists, the issue is likely with your Mobile Connector.
It is recommended that you obtain another wall plug adapter or Mobile Connector as needed, based on the
troubleshooting steps above.
In the meantime, you can continue to charge with the same equipment. The charge rate will be reduced, as charge
current will be limited to 8A while this condition persists.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
(UMC_a014)
Wall plug adapter error - Charge rate reduced
Plug adapter fully into Mobile Connector and retry
Your Mobile Connector is unable to communicate with the wall plug adapter. Because your Mobile Connector cannot
identify the type of wall outlet the wall plug adapter is connected to, charge current is automatically reduced to 8A.
It is recommended that you try the following troubleshooting steps:
1. Unplug your Mobile Connector, including the wall plug adapter, completely from the wall outlet.
2. Make sure the connection between the wall plug adapter and the main body of your Mobile Connector is secure.
a. Disconnect the wall plug adapter completely from the main body of your Mobile Connector.
b. Fully reinsert the wall plug adapter into the main body of your Mobile Connector by pushing it into the socket
until it snaps into place.
3. Try charging again by plugging the Mobile Connector, including wall plug adapter, fully into the wall outlet.
4. If the alert persists, try using a different wall plug adapter (see steps above to make sure the adapter is fully
connected to your Mobile Connector).
a. If the alert is no longer present, the issue is likely with the wall plug adapter you were using previously.
b. If the alert persists, the issue is likely with your Mobile Connector.
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Troubleshooting Alerts
It is recommended that you obtain another wall plug adapter or Mobile Connector as needed, based on the
troubleshooting steps above.
In the meantime, you can continue to charge with the same equipment. The charge rate will be reduced, as charge
current will be limited to 8A while this condition persists.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
(UMC_a015)
Wall plug adapter error - Charge rate reduced
Plug adapter fully into Mobile Connector and retry
Your Mobile Connector is unable to communicate with the wall plug adapter. Because your Mobile Connector cannot
identify the type of wall outlet the wall plug adapter is connected to, charge current is automatically reduced to 8A.
It is recommended that you try the following troubleshooting steps:
1. Unplug your Mobile Connector, including the wall plug adapter, completely from the wall outlet.
2. Make sure the connection between the wall plug adapter and the main body of your Mobile Connector is secure.
a. Disconnect the wall plug adapter completely from the main body of your Mobile Connector.
b. Fully reinsert the wall plug adapter into the main body of your Mobile Connector by pushing it into the socket
until it snaps into place.
3. Try charging again by plugging the Mobile Connector, including wall plug adapter, fully into the wall outlet.
4. If the alert persists, try using a different wall plug adapter (see steps above to make sure the adapter is fully
connected to your Mobile Connector).
a. If the alert is no longer present, the issue is likely with the wall plug adapter you were using previously.
b. If the alert persists, the issue is likely with your Mobile Connector.
It is recommended that you obtain another wall plug adapter or Mobile Connector as needed, based on the
troubleshooting steps above.
In the meantime, you can continue to charge with the same equipment. The charge rate will be reduced, as charge
current will be limited to 8A while this condition persists.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
(UMC_a016)
Mobile Connector control box temperature high
Maximum charge rate reduced
Charge current has been temporarily reduced because the Mobile Connector has detected increased temperature
inside its control box housing.
Make sure the Mobile Connector is not covered by anything, and that there is no heat source nearby. If the problem
persists in normal ambient temperatures (under 100°F or 38°C), service is required.
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Troubleshooting Alerts
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
(UMC_a017)
Charge rate reduced - Wall plug temperature high
Wall outlet and wiring inspection recommended
High temperature detected by Mobile Connector alerts indicate the outlet used to charge is becoming too warm, so
charging has been slowed to protect the outlet.
This is not typically an issue with your vehicle or your Mobile Connector, but rather an issue with the outlet. A warm
outlet may be caused by a plug that is not fully inserted, a loose building wiring connection to the outlet, or an
outlet that is beginning to wear out.
To regain normal charge speed, make sure your adapter is fully plugged into the outlet. If charging speed does not
return to normal, contact an electrician to inspect the outlet and building wiring connections to the outlet and
complete any repairs needed.
If the outlet is worn, it should be replaced with a high-quality outlet. Consider upgrading to a Tesla Wall Connector
for greater convenience and highest charging speed.
(UMC_a018)
Charge rate reduced - Handle temperature high
Check charge handle or charge port for debris
Charge current has been temporarily reduced because the Mobile Connector has detected increased temperature in
the charge handle that connects to your vehicle's charge port.
Make sure the Mobile Connector is fully inserted into your vehicle's charge port inlet.
You should also inspect the charge port inlet and the Mobile Connector handle for any obstructions (use a flashlight
as necessary). Debris or foreign objects present in the charge port inlet or the Mobile Connector handle can cause
increased temperatures during charging.
It is recommended that any debris / foreign objects be removed. Afterward, try re-inserting the Mobile Connector
handle into the charge port. Once the Mobile Connector handle temperature has decreased and any obstruction has
been removed, the alert should clear and charge current should no longer be reduced.
Also make sure the charge handle of the Mobile Connector is not covered by anything, and that there is no heat
source nearby.
If the alert persists in normal ambient temperatures (under 100°F or 38°C), and continues to occur during multiple
charging attempts, this may indicate a condition affecting the Mobile Connector or your vehicle. It is recommended
that you schedule service at your convenience.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
256
Troubleshooting Alerts
(UMC_a019)
Mobile Connector to adapter connection hot
Maximum charge rate reduced
Charge current has been reduced because the Mobile Connector has detected a high temperature at the connection
between the wall plug adapter and the control box.
Make sure the wall plug adapter is fully connected to the Mobile Connector control box.
After unplugging from the power source (wall outlet), you should also inspect the wall plug adapter connection and
the Mobile Connector control box connection for any obstructions (use a flashlight as necessary). Debris or foreign
objects present where the wall plug adapter and the Mobile Connector control box connect can cause increased
temperatures during charging.
It is recommended that any debris / foreign objects be removed. Afterward, try re-inserting the wall plug adapter
into the Mobile Connector and then connecting to the power source (wall outlet). Once the Mobile Connector
control box temperature has decreased and any obstruction has been removed, the alert should clear and charge
current should no longer be reduced.
Also make sure the wall plug adapter is not covered by anything, and that there is no heat source nearby. If the issue
persists in normal ambient temperatures (under 100°F or 38°C), service is required.
You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can
be located through the map on your vehicle's touchscreen display. See Maps and Navigation on page 131 for more
details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
(VCBATT_a180)
Electrical system power reduced
Vehicle may shut down unexpectedly
The electrical system cannot maintain the voltage required to support all vehicle features.
If this alert is present while you are driving, it is possible your vehicle will shut down unexpectedly. It is also possible
that your vehicle will not restart after the current drive.
If this alert is present when your vehicle is in Park or when it first wakes, it is possible your vehicle may not have
adequate electrical power to start driving. A separate vehicle alert may be present to indicate that condition.
It is recommended that you eliminate or reduce your use of any nonessential features. This can help your vehicle
maintain adequate electrical power for essential functions.
If this alert remains active, it is recommended that you schedule service immediately. Without service, your vehicle
may not drive, may shut down unexpectedly, or may not restart.
(VCBATT_a182)
Schedule service to replace low voltage battery
Software will not update until battery is replaced
The low voltage battery is showing degraded performance and needs to be replaced. Until the low voltage battery is
replaced, vehicle software updates will not complete.
It is recommended that you have the low voltage battery replaced at your earliest convenient opportunity.
You can schedule service via your Tesla Mobile App, or with an independent service provider that offers low voltage
battery replacement for your vehicle. Please note that independent service provider options may vary, based on your
vehicle configuration and your location.
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Troubleshooting Alerts
Your vehicle is OK to drive with this alert present. However, if you delay the low voltage battery replacement, your
vehicle may eventually not have enough electrical power to start or to restart after a recent drive.
If the low voltage battery does not have enough electrical power to turn on your vehicle or open the doors, follow
the instructions in Jump Starting the Low Voltage Battery on page 205.
For more information on the battery system, see High Voltage Battery Information on page 164.
(VCBATT_a191)
Electrical system power reduced
Vehicle shutting down
The low voltage battery cannot provide the electrical support necessary to drive or continue driving. Your vehicle is
shutting down to preserve energy for essential functions other than driving.
Your vehicle cannot be driven or continue driving while this condition continues.
If this alert is present while you are driving, your vehicle needs to come to a stop immediately. It is recommended
that you:
• Pull over safely immediately
• Use your Mobile App to contact Tesla Roadside Assistance immediately, or seek other roadside assistance if
preferred
If you do not pull over safely within a short time, your vehicle may shut down unexpectedly. It is also possible that
your vehicle will not restart once parked.
When this alert is present, the electrical system cannot maintain the voltage required to support all vehicle features.
Many vehicle functions may no longer work.
It is possible your vehicle may lose all electrical power. If this occurs, you can still use the manual door releases to
exit the vehicle if necessary. For more information, see Opening Doors from the Interior on page 13.
This alert may be present due to various vehicle conditions. For more information and further recommended actions,
check for other active vehicle alerts.
If this alert remains present, it is recommended that you schedule service immediately. Without service, your vehicle
may not drive, may shut down unexpectedly, or may not restart.
(VCFRONT_a192)
Electrical system is unable to support all features
Shutting down features to conserve energy
The electrical system cannot support all vehicle features. Your vehicle is shutting down nonessential features to
preserve energy for essential functions.
If you are driving when this alert is present, it is possible your vehicle may shut down unexpectedly. It is also possible
that your vehicle will not restart once parked.
Nonessential features may be unavailable, including seat heaters, cabin climate control, and in-vehicle entertainment.
This is expected behavior intended to help your vehicle maintain adequate electrical power for essential functions,
including the ability to operate headlights, windows and doors, hazard lights, and the front trunk (frunk).
It is possible your vehicle may lose all electrical power. If this occurs, you can still use the manual door releases to
exit the vehicle if necessary. For more information, see Opening Doors from the Interior on page 13.
This alert may be present due to various vehicle conditions. For more information and further recommended actions,
check for other active vehicle alerts.
258
Troubleshooting Alerts
(VCBATT_a220)
Electrical system is unable to support all features
Schedule service
The low voltage battery cannot provide the electrical support necessary to drive or continue driving.
If this alert is present while you are driving, your vehicle needs to come to a stop as soon as possible. Pull over safely
at your earliest opportunity.
It is possible your vehicle will shut down unexpectedly. It is also possible that your vehicle will not restart after the
current drive.
You may notice that some nonessential features are not available. This is expected behavior due to your vehicle
preserving energy for essential functions.
It is recommended that you eliminate or reduce your use of any nonessential features. This can help your vehicle
maintain adequate electrical power for essential functions other than driving, until it can be serviced.
If this alert remains present, it is recommended that you schedule service immediately. Without service, your vehicle
may not drive, may shut down unexpectedly, or may not restart.
(VCBATT_a402)
Electrical system backup power is unavailable
Vehicle will consume more energy while idle
The backup power source for the electrical system, the low voltage battery, is not available or cannot provide the
voltage required to support all vehicle features.
The primary source of electrical power, the high voltage battery system, will continue to support vehicle functions,
even when your vehicle is idle. For more information on the high voltage battery, see About the High Voltage Battery
on page 164.
You may notice that your vehicle consumes more energy than usual when you are not driving it, or that your vehicle
displays a lower projected range than you would normally expect after charging. This is normal vehicle behavior
when this alert is present, and it will continue until the backup power source is restored.
You may also notice that some nonessential features are not available. This is expected behavior due to your vehicle
preserving energy for essential functions.
It is recommended that you limit or avoid the use of any nonessential features. This can help your vehicle maintain
adequate electrical power for essential functions.
There is a chance that an issue affecting the primary power source could cause your vehicle to shut down
unexpectedly.
It is recommended that you schedule service at your earliest opportunity, so the backup power source for the
electrical system can be restored.
(VCBATT_a478)
Low voltage battery service is required
Schedule service - Vehicle may not restart
The low voltage battery cannot provide the electrical support necessary to drive or continue driving.
If this alert is present while you are driving, your vehicle needs to come to a stop as soon as possible. Pull over safely
at your earliest opportunity.
It is possible your vehicle will shut down unexpectedly. It is also possible that your vehicle will not restart after the
current drive.
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259
Troubleshooting Alerts
You may notice that some nonessential features are not available. This is expected behavior due to your vehicle
preserving energy for essential functions.
It is recommended that you eliminate or reduce your use of any nonessential features. This can help your vehicle
maintain adequate electrical power for essential functions other than driving, until it can be serviced.
If this alert remains present, it is recommended that you schedule service immediately. Without service, your vehicle
may not drive, may shut down unexpectedly, or may not restart.
(VCBATT_a496)
Vehicle is preparing to shut down
PULL OVER SAFELY
The electrical system cannot provide adequate support to drive or continue driving. Your vehicle is preparing to shut
down to preserve energy for essential functions other than driving.
Your vehicle cannot be driven or continue driving while this condition continues.
If this alert is present while you are driving, your vehicle needs to come to a stop as soon as possible. It is
recommended that you:
• Pull over safely at your earliest opportunity
• Use your Mobile App to contact Tesla Roadside Assistance immediately, or seek other roadside assistance if
preferred
If you do not pull over safely within a short time, your vehicle may shut down unexpectedly. It is also possible that
your vehicle will not restart once parked.
It is possible your vehicle may lose all electrical power. If this occurs, you can still use the manual door releases to
exit the vehicle if necessary. For more information, see Opening Doors from the Interior on page 13.
This alert may be present due to various vehicle conditions. For more information and further recommended actions,
check for other active vehicle alerts.
(VCSEC_a221)
Air pressure below recommendation for tires
Check pressure and refill air as needed
This alert does NOT indicate that there is a flat tire.
The tire pressure monitoring system (TPMS) has detected that the air pressure in one or more of your tires is at least
20% lower than the recommended cold tire pressure.
See Maintaining Tire Pressures on page 173 for detailed information on where to find the recommended cold
pressure (RCP) for your vehicle's tires, how to check tire pressures, and how to keep your tires properly inflated.
This alert may appear in cold weather because the air in your tires naturally contracts when it becomes cold,
decreasing tire pressures.
• Although drops in tire pressure are expected in colder weather, air should still be added to maintain the
recommended cold tire pressure.
• The alert may clear as the vehicle is driven. This is because the tires will warm up and the tire pressure will
increase.
◦ Even if the alert clears, the tires should still be refilled with air once they have cooled. For the best experience
with your vehicle, the recommended cold tire pressure should be maintained at all times.
The alert should clear once the Tire Pressure Monitoring System detects that each of your tires is inflated to the
recommended cold pressure.
260
Troubleshooting Alerts
• The alert and Tire Pressure indicator light may still be present immediately after you have filled your tires to the
recommended cold pressure, but both should clear once you have driven a short distance.
• You may need to drive over 15 mph (25 km/h) for at least 10 minutes for the Tire Pressure Monitoring System to
measure and report your updated tire pressures.
If you repeatedly see this alert for the same tire, have the tire inspected for a slow leak. You can visit a local tire shop
or schedule service using your Tesla Mobile App.
For more information on tire pressure and inflation, see Tire Care and Maintenance on page 173.
(VCSEC_a228)
Air pressure in tires very low
PULL OVER SAFELY - Check for flat tire
This alert indicates that one or more of the tires on your vehicle is extremely low or flat.
The tire pressure monitoring system (TPMS) has detected that the air pressure in one or more of your tires is
significantly lower than the recommended cold tire pressure.
You should pull over carefully as soon as possible. In a safe location, check for a flat tire.
You can request Tesla roadside assistance options (mobile tire, loaner wheel, tow) if required. See Contacting Tesla
Roadside Assistance on page 201 for more information.
In a non-emergency situation, it is recommended that you visit a local tire shop for assistance or schedule service
using your Tesla Mobile App.
See Maintaining Tire Pressures on page 173 for detailed information on where to find the recommended cold
pressure (RCP) for your vehicle's tires, how to check tire pressures, and how to keep your tires properly inflated.
The alert should clear once the Tire Pressure Monitoring System has a consistent tire pressure measurement for each
of your tires of at least 30 psi.
• The alert and Tire Pressure indicator light may still be present immediately after you have filled your tires to the
recommended cold pressure, but both should clear once you have driven a short distance.
• You may need to drive over 15 mph (25 km/h) for at least 10 minutes for the Tire Pressure Monitoring System to
measure and report your updated tire pressures.
For more information on tire pressure, inflation, and maintenance, see Tire Care and Maintenance on page 173.
Consumer Information
261
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