Lexus CT (2021 year). Manual in english — page 33

672

8-2. Steps to take in an emergency

Warning message and warning buzzer list

Warning message

Details/Actions

Indicates a malfunction in the vehicle’s charging system



Immediately stop the vehicle in a safe place and

contact any authorized Lexus retailer or Lexus

authorized repairer, or any reliable repairer.

(If equipped)

Indicates that:

• There is a high possibility of a frontal collision; or

• The pre-collision braking function is operating

A buzzer also sounds.



Check the vehicle’s surroundings and take evasive

action if necessary.

(Flashes)

(If equipped)

Indicates that your vehicle is nearing the vehicle ahead

(in vehicle-to-vehicle distance control mode)

A buzzer also sounds.



Slow the vehicle by applying the brakes.

(If equipped)

Indicates that the vehicle has deviated from the lane

(while the LDA [Lane Departure Alert with steering con-

trol] system is operating)

The lane line on the side the vehicle has deviated from

flashes in amber.

A buzzer also sounds.



Check around the vehicle and back to inside of the

lane lines.

(Flashes)

673

8-2. Steps to take in an emergency

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(If equipped)

Indicates that the LDA (Lane Departure Alert with steer-

ing control) system has determined that the driver does

not have the hands on the steering wheel while the steer-

ing control function is on

If the driver operates the steering wheel only a small

amount, the system may be unable to detect the steer-

ing wheel operations and this warning may be dis-

played.



Firmly hold the steering wheel.

(If equipped)

Indicates that steering control function is temporarily

canceled due to the LDA (Lane Departure Alert with

steering control) system determining that the driver

does not have the hands on the steering wheel while the

steering control function is on

If the driver operates the steering wheel only a small

amount, the system may be unable to detect the steer-

ing wheel operations and this warning may be dis-

played.



Firmly hold the steering wheel.

Indicates that the driver’s door was opened with the shift

position in any position other than P

A buzzer also sounds.



Shift the shift position to P.

Warning message

Details/Actions

(Flashes)

674

8-2. Steps to take in an emergency

Indicates that one or more of the doors is not fully closed

The system also indicates which doors are not fully

closed.

If the vehicle reaches a speed of 5 km/h (3 mph),

flashes and a buzzer sounds to indicate that

the door(s) are not yet fully closed.



Make sure that all the doors are closed.

Indicates that the hood is not fully closed



Close the hood.

Indicates that the back door is not fully closed

If the vehicle reaches a speed of 5 km/h (3 mph),

flashes and a buzzer sounds to indicate that

the back door is not yet fully closed.



Close the back door.

(If equipped)

Indicates a malfunction in the Lexus parking assist-sen-

sor

All the sensor lights come on.

A buzzer also sounds.



Have the vehicle inspected by any authorized Lexus

retailer or Lexus authorized repairer, or any reliable

repairer.

Warning message

Details/Actions

675

8-2. Steps to take in an emergency

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(If equipped)

Indicates that a Lexus parking assist-sensor is dirty or

covered with ice

All the sensor lights come on.

A buzzer also sounds.



Clean the sensor.

Indicates that the accelerator pedal is depressed while

the shift position is in N

A buzzer also sounds.



Release the accelerator pedal and shift the shift

position to D or R.

Indicates that the accelerator pedal is depressed to stop

the vehicle on an upward slope etc.

A buzzer also sounds.

If this continues, the hybrid system may overheat.



Release the accelerator pedal and depress the

brake pedal.

Indicates that the traction battery power has dropped

because a long period of time has elapsed after shifting

the shift position to N

A buzzer also sounds.



Restart the hybrid system when starting the vehicle.

Warning message

Details/Actions

(Flashes)

(Flashes)

(Flashes)

676

8-2. Steps to take in an emergency

Indicates a malfunction in the hybrid system

A buzzer also sounds.



Immediately stop the vehicle in a safe place and

contact any authorized Lexus retailer or Lexus

authorized repairer, or any reliable repairer.

Indicates that the shift position has been in N and the

hybrid battery (traction battery) has not been charged

for period of time

A buzzer also sounds.



When stopping the vehicle for a long period of time,

shift the shift position to P. The battery cannot be

charged with the shift position in N.

Indicates that the vehicle is being driven at 5 km/h (3

mph) or more with the parking brake still engaged

A buzzer also sounds.



Release the parking brake.

Warning message

Details/Actions

(Flashes)

(Flashes)

677

8-2. Steps to take in an emergency

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Indicates a malfunction in the shift control system

A buzzer also sounds.



Have the vehicle inspected at any authorized Lexus

retailer or Lexus authorized repairer, or any reliable

repairer immediately.

• The hybrid system may not be able to start.

• The parking lock mechanism may not operate. Also,

shifting the shift position to P may not be possible.

When parking, choose a level place and apply the

parking brake securely.

• The automatically P position selection function (



P. 274)

may not operate. Before turning the power switch off,

securely press the P position switch, and be sure to check

that the shift position is in P by verifying the shift position

indicator or P position switch indicator.

• The power switch may not be able to be turned off. In

this case, the power switch can be turned off by apply-

ing the parking brake.

• The 12-volt battery may not be charged sufficiently. In

this case, charge or replace the 12-volt battery.

After charging the 12-volt battery, the message may

continue to be displayed until the shift position is

shifted from P.

Indicates a malfunction in the shift control system

A buzzer also sounds.



Have the vehicle inspected at any authorized Lexus

retailer or Lexus authorized repairer, or any reliable

repairer immediately.

If not inspected, vehicle systems may not operate

properly.

Warning message

Details/Actions

678

8-2. Steps to take in an emergency

An attempt was made to change the shift position when

the 12-volt battery voltage was low.

A buzzer also sounds.



Recharge or replace the 12-volt battery.

Indicates that the shift lever and P position switch were

repeatedly operated in quick succession.

A buzzer also sounds.



Wait approximately 20 seconds and change the

shift position.

An attempt was made to shift the shift position from P or

N to B.

A buzzer also sounds.



Shift the shift position to D, and then shift the shift

position to B.

An attempt was made to shift the shift position to R, D or

B with the power switch on (READY indicator turned

off).

A buzzer also sounds.



After starting the hybrid system, shift the shift posi-

tion to R, D or B

*

.

*

: When shifting the shift position to B, first shift the

shift position to D, and then shift the shift position to
B.

Warning message

Details/Actions

(Flashes)

679

8-2. Steps to take in an emergency

8

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An attempt was made to shift the shift position from P

with the brake pedal released.

A buzzer also sounds.



When shifting the shift position from P, depress the

brake pedal.

An attempt was made to shift the shift position from R to

B.

A buzzer also sounds.

The shift position automatically changed to N.



Shift the shift position to D, and then shift the shift

position to B.

An attempt was made to shift the shift position to D while

the vehicle was moving in reverse.

A buzzer also sounds.

The shift position automatically changed to N.



Stop the vehicle, and then change the shift position.

An attempt was made to shift the shift position to R while

the vehicle was moving forward.

A buzzer also sounds.

The shift position automatically changed to N.



Stop the vehicle, and then change the shift position.

Indicates that the P position switch is pressed while the

vehicle is running.

A buzzer also sounds.

The shift position automatically changed to N.



To shift the shift position to P, stop the vehicle com-

pletely and press the P position switch.



To continue driving, shift the shift position to D or R.

Warning message

Details/Actions

(Flashes)

(Flashes)

(Flashes)

(Flashes)

(Flashes)

680

8-2. Steps to take in an emergency

(If equipped)

The operation conditions of the front camera (tempera-

ture, etc.) are not met.



When the operation conditions of the front camera

(temperature, etc.) are met, the following systems

will become available.

• PCS (Pre-Collision System)

• LDA (Lane Departure Alert with steering control)

• RSA (Road Sign Assist)

• Automatic High Beam

(If equipped)

Dirt, rain, condensation, ice, snow, etc., are present on

the windshield in front of the front camera.

The following systems may be suspended until the

problem shown in the message is resolved.

• PCS (Pre-Collision System)

• LDA (Lane Departure Alert with steering control)

• RSA (Road Sign Assist)

• Automatic High Beam



Turn the system off, remove any dirt, rain, condensa-

tion, ice, snow, etc., from the windshield, and then

turn the system back on.

(If equipped)

Indicates that the radar cruise control sensor is dirty or

covered with ice

A buzzer also sounds.



Clean the sensor.

(If equipped)

Indicates that the dynamic radar cruise control system is

unable to judge vehicle-to-vehicle distance

A buzzer also sounds.



If the windshield wipers are on, turn them off or set

them to either intermittent or slow mode.

Warning message

Details/Actions

681

8-2. Steps to take in an emergency

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(If equipped)

Indicates a malfunction in:

• The cruise control system; or

• The dynamic radar cruise control system

Press the “ON-OFF” button once to deactivate the

system, and then press the button again to reactivate

the system.

A buzzer also sounds.



Have the vehicle inspected by any authorized Lexus

retailer or Lexus authorized repairer, or any reliable

repairer.

(If equipped)

Indicates a malfunction in the LDA (Lane Departure

Alert with steering control) system

A buzzer also sounds.



Have the vehicle inspected by any authorized Lexus

retailer or Lexus authorized repairer, or any reliable

repairer.

(If equipped)

Indicates that the system is temporarily unavailable due

to a malfunction in a sensor other than the front camera

A buzzer also sounds.



Turn the LDA (Lane Departure Alert with steering

control) system off, wait for a little while, and then

turn the LDA (Lane Departure Alert with steering

control) system back on.

(If equipped)

Indicates a malfunction in the pre-collision system

A buzzer also sounds.



Have the vehicle inspected by any authorized Lexus

retailer or Lexus authorized repairer, or any reliable

repairer.

Warning message

Details/Actions

682

8-2. Steps to take in an emergency

(If equipped)

Indicates that the pre-collision system is disabled.



When conditions improve, the system resumes

operation. If this item is displayed continuously, have

the vehicle inspected at any authorized Lexus

retailer or Lexus authorized repairer, or any reliable

repairer immediately.

(If equipped)

Indicates that the front of the radar sensor or the front or

back of the radar sensor cover is dirty, covered with ice,

etc.

A buzzer also sounds.



Remove any dirt, ice, etc.

Indicates that the power switch is turned off or turned to

ACCESSORY mode and the driver’s door is opened

while the lights are turned on

A buzzer also sounds.



Turn the lights off.

(If equipped)

Indicates that the moon roof is not fully closed (with the

power switch off, and the driver’s door open)

A buzzer also sounds.



Close the moon roof.

Indicates that the hybrid system has overheated

This message may be displayed when driving under

severe operating conditions. (For example, when driv-

ing up a long steep hill.)

A buzzer also sounds.



Stop and check. (



P. 722)

Warning message

Details/Actions

(Flashes)

(Flashes)

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8-2. Steps to take in an emergency

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■

Warning messages

The warning message illustrations used are intended as examples, and may differ from

the image that is actually displayed on the multi-information display.

■

Warning message in radar cruise mode (if equipped)

In the following situations, the warning message may not be displayed even if vehicle-to-

vehicle distance decreases:

●

When your vehicle and the vehicle ahead are traveling at the same speed or the vehicle

ahead is traveling more quickly than your vehicle

●

When the vehicle ahead is traveling at a very low speed

●

Immediately after cruise control speed is set

●

At the instant the accelerator pedal is depressed

■

Warning buzzer



P. 670

(If equipped)

Indicates a malfunction in the LED headlight system or

Automatic High Beam

A buzzer also sounds.



Have the vehicle inspected by any authorized Lexus

retailer or Lexus authorized repairer, or any reliable

repairer.

Indicates that the washer fluid level is low



Add washer fluid.

Warning message

Details/Actions

684

8-2. Steps to take in an emergency

Carrying out the corresponding action turns the message off.

Other displayed message

Displayed message

Details/Actions

(If equipped)

Indicates that the LDA (Lane Departure Alert with steer-

ing control) system cannot be used as the vehicle speed

is approximately 50 km/h (32 mph) or less



Drive the vehicle at approximately 50 km/h (32

mph) or more.

(If equipped)

Indicates that LDA (Lane Departure Alert with steering

control) system cannot be used due to the vehicle speed

being too high



Slow down.

Indicates that the EV drive mode is not available

*

The reason the EV drive mode is not available (the

vehicle is idling, battery charge is low, speed is higher

than the EV drive mode operating speed range, accel-

erator pedal is depressed too much) may be dis-

played.

A buzzer also sounds.



Use the EV drive mode when it becomes available.

Indicates that the EV drive mode has been automatically
canceled

*

The reason the EV drive mode is not available (the

battery charge is low, speed is higher than the EV

drive mode operating speed range, accelerator pedal

is depressed too much) may be displayed.

A buzzer also sounds.



Drive the vehicle for a while.

(Flashes 3 times)

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8-2. Steps to take in an emergency

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*

: For the EV drive mode operating conditions:



P. 269

Maintenance of the hybrid battery (traction battery)

cooling component is required

The filter may be clogged, the air intake vent may be

blocked or there may be a gap in the duct.



If the air intake vent is dirty, refer to P. 586 for

cleaning the air intake vent.



If the message is being displayed and the air intake

vent is not dirty, have the vehicle inspected at any

authorized Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

Displayed message

Details/Actions

686

8-2. Steps to take in an emergency

Interior

buzzer

Exterior

buzzer

Warning message

Details/Actions





Power was turned off due to the

automatic power off function.



Next time, start the hybrid sys-

tem and keep it on for approxi-

mately 5 minutes or more to

recharge the 12-volt battery.

Con-

tinuous



The driver’s door was opened while

any shift position other than P was

selected without turning off the

power switch.



Shift the shift position to P.

Con-

tinuous

Con-

tinuous

The electronic key was carried out-

side the vehicle and the driver’s door

was opened and closed while any

shift position other than P was

selected without turning off the

power switch.



Shift the shift position to P.



Bring the electronic key back

into the vehicle.

Once



An attempt was made to start the

hybrid system without the electronic

key being present, or the electronic

key was not functioning normally.



Start the hybrid system with the

electronic key present.

An attempt was made to drive when

the regular key was not inside the

vehicle.



Confirm that the electronic key

is inside the vehicle.

(Flashes)

(Displayed alternately)

(Flashes)

(Flashes)

687

8-2. Steps to take in an emergency

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Once

3 times

The electronic key was carried out-

side the vehicle and a door other

than the driver’s door was opened

and closed while the power switch

was in a mode other than off.



Bring the electronic key back

into the vehicle.

The electronic key was carried out-

side the vehicle and the driver’s door

was opened and closed while the

shift position P was selected without

turning off the power switch.



Turn the power switch off.



Bring the electronic key back

into the vehicle.

Once

Sounds

once

for 5

sec-

onds

An attempt was made to exit the

vehicle with the electronic key and

lock the doors without first turning

the power switch off.



Turn the power switch off and

lock the doors again.

Once



An attempt was made to turn the

power switch off when the shift posi-

tion was not in P.



To turn off the hybrid system,

first shift the shift position to P

and then turn the power switch

off.

Interior

buzzer

Exterior

buzzer

Warning message

Details/Actions

(Flashes)

(Displayed alternately)

(Flashes)

(Flashes)