Lexus NX (2022 year). Manual in english — page 34
3
Change the engine switch to ACC.
4
Press and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be
malfunctioning.
Have the vehicle checked by any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer immediately.
Starting the engine when the electronic key is not operating normally
1
Ensure that the shift position is in P and depress the brake pedal.
2
Touch the Lexus emblem side of the electronic key to the engine switch.
When the electronic key is detected, a buzzer will sound and the engine switch will
change to ON.
If the smart entry & start system has been disabled by a customization setting, the
engine switch will change to ACC.
3
Firmly depress the brake pedal and check that a message is shown on the
multi-information display.
4
Press the engine switch.
In the event that the engine still cannot be started, contact any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
INFORMATION
■
Stopping the engine
Shift the shift position to P, set the parking brake and press the engine switch as you
normally do when stopping the engine.
■
Electronic key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
9-3. If the engine will not start
554
■
Changing engine switch modes
Release the brake pedal and press the engine switch in step
above. The engine will
not start and the mode will be changed each time the switch is pressed.
Related Links
Replace the electronic key battery(P. 579)
9-3. If the engine will not start
555
9
When tr
ouble arises
When the interior lights or headlights are dim and the engine cannot be
started
Cause
Remedy
The battery may be discharged.
Restarting the engine using the jumper (or
booster) cables.
The battery terminals may be
loose or corroded.
Check if a battery terminal is loose or corrod-
ed.
Related Links
If the vehicle battery is discharged
WARNING
■
When replacing the battery
●
When the vent plug and indicator are close to the hold down clamp, the battery fluid
(sulfuric acid) may leak.
●
For information regarding battery replacement, contact any authorized Lexus retailer
or Lexus authorized repairer, or any reliable repairer.
If the battery discharges, it may not be possible to shift the shift position to other
positions.
In this case, the vehicle cannnot be towed without lifting both front wheels because
the front wheels will be locked.
9-3. If the engine will not start
556
INFORMATION
■
When the battery is removed or discharged
●
In some cases, it may not be possible to unlock the doors using the smart entry & start
system after the battery has been replaced.
Use the wireless remote control or the mechanical key to lock or unlock the doors.
●
If the engine cannot be started the first time the engine switch is pressed after
removing and installing the battery, touch the Lexus emblem side of the electronic key
to the engine switch to start the engine.
●
The engine switch mode is memorized by the vehicle.
After the battery has been recharged or replaced, the engine switch will return to the
mode it was in before it was discharged or removed.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery was dis-
charged, be especially careful when reconnecting the battery.
●
Some systems may require initialization.
●
Vehicles with a Stop & Start system:
The Stop & Start system may not automatically stop the engine for up to an hour.
■
To prevent battery discharge
●
Turn off the headlights and the audio system while the engine is off.
●
Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
■
If the vehicle battery is discharged
●
The doors cannot be locked or unlocked using the smart entry & start system or
wireless remote control, and the door opener switches will not operate. Use the me-
chanical key to enable/disable manual release handle operation. By enabling manual
release handle operation, the door can be opened.
●
Information recorded by various computers will be cleared.
When the battery is depleted, have the vehicle inspected at any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
●
Some systems may require initialization.
■
Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is not
in use, due to natural discharge and the draining effects of certain electrical appliances.
If the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start.
9-3. If the engine will not start
557
9
When tr
ouble arises
(The battery recharges automatically during driving.)
■
Replacing the battery
●
Vehicles with Stop & Start system: Use a genuine battery specifically designed for use
with the Stop & Start system or a battery with equivalent specifications to a genuine
battery. If an unsupported battery is used, Stop & Start system functions may be
restricted to protect the battery. Also, battery performance may decrease and the
engine may not be able to restart. Contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer for details.
●
Vehicles with Stop & Start system: Use a battery that the case size is same as the
previous one (LN3), 20 hour rate capacity (20HR) is equivalent (65Ah) or greater,
and performance rating (CCA) is equivalent (603A) or greater.
Vehicles without Stop & Start system: Use a battery that the case size is same as the
previous one (LN3), 20 hour rate capacity (20HR) is equivalent (70Ah) or greater,
and performance rating (CCA) is equivalent (592A) or greater.
•
If the sizes differ, the battery cannot be properly secured.
•
If the 20 hour rate capacity of the replacement battery is low, even if the vehicle is
used frequently, the battery may discharge and engine may not be able to start.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer for details.
When the doors cannot be locked from outside the vehicle after the battery
was discharged
The doors cannot be locked using the smart entry & start system or wireless
remote control.
Disabling the operation of the driver’s door
1
Insert a plastic card, etc. into the gap in the
door handle and remove the cover.
To avoid damage, do not apply excessive force to
the cover.
9-3. If the engine will not start
558
2
Using the mechanical key, turn the door lock
to the lock side to disable the door.
3
Check that the door cannot be opened.
Disabling the operation of doors other than the driver’s door
1
Open the door. Using the mechanical key,
slide the cover as shown in the illustration.
To avoid damage, do not apply excessive force to
the cover.
2
Insert the mechanical key into the opening.
3
Remove the mechanical key and slide the
emergency lock cover back to its original
position.
4
Check that all of the doors cannot be opened.
When removing the battery terminals
When disconnecting a battery terminal, contact your Lexus dealer.
When disconnecting a battery terminal, contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.
9-3. If the engine will not start
559
9
When tr
ouble arises
To prevent the electronic key (mechanical key) from being locked inside the
vehicle, make sure to remove it from the vehicle before disconnecting a battery
terminal.
If the electronic key (mechanical key) is to be left in the vehicle, make sure to open
a window so an inside manual release handle can be operated.
WARNING
■
When removing the battery terminals
Always remove the negative (-) terminal first. If the positive (+) terminal contacts any
metal in the surrounding area when the positive (+) terminal is removed, a spark may
occur, leading to a fire in addition to electrical shocks and death or serious injury.
■
Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable gas that
may be emitted from the battery:
Do not smoke, use matches, cigarette lighters or allow open flame near the battery.
■
Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while related parts
contain lead and lead compounds. Observe the following precautions when handling the
battery:
●
When working with the battery, always wear safety glasses and take care not to allow
any battery fluids (acid) to come into contact with skin, clothing or the vehicle body.
●
Do not lean over the battery.
●
In the event that battery fluid comes into contact with the skin or eyes, immediately
wash the affected area with water and seek medical attention.
9-3. If the engine will not start
560
WARNING
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●
Always wash your hands after handling the battery support, terminals, and other
battery-related parts.
●
Do not allow children near the battery.
INFORMATION
■
If a battery terminal has been disconnected
●
If a battery terminal has been disconnected, the doors cannot be locked or unlocked
using the smart entry & start system or wireless remote control, and the door opener
switches will not operate.
Make sure to remove the electronic key (mechanical key) from the vehicle before
disconnecting a battery terminal.
If the electronic key (mechanical key) is to be left in the vehicle, open a window so an
inside manual release handle can be operated.
●
The doors may not be able to be unlocked using the smart entry & start system
immediately after a battery terminal is disconnected and reconnected.
If the doors cannot be unlocked, use the wireless remote control or mechanical key to
lock and unlock the doors.
●
When a battery terminal is disconnected, information recorded by various computers
will be cleared.
●
Some systems may require initialization.
9-3. If the engine will not start
561
9
When tr
ouble arises
When the interior lights or headlights do not illuminate and the engine
cannot be started
Cause
Remedy
The battery may be
discharged.
Restarting the engine using the jumper (or booster) cables.
Contact any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer if the problem cannot be
repaired, or if repair procedures are unknown.
One or both of the
battery terminals
may be discon-
nected.
Check if a battery terminal is disconnected.
Contact any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer if the problem cannot be
repaired, or if repair procedures are unknown.
The steering lock
system may be
malfunctioning.
Contact any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
Related Links
9-3. If the engine will not start
562
When the horn sounds at a low volume and the engine cannot be started
Cause
Remedy
The battery may be discharged.
Restarting the engine using the jumper (or
booster) cables.
The battery terminal connections
may be loose or corroded.
The battery terminals may be loose or cor-
roded.
Related Links
9-3. If the engine will not start
563
9
When tr
ouble arises
When the horn does not sound and the engine cannot be started
Cause
Remedy
The battery may be
discharged.
Restarting the engine using the jumper (or booster) cables.
Contact any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer if the problem cannot be
repaired, or if repair procedures are unknown.
One or both of the
battery terminals
may be discon-
nected.
Check if a battery terminal is loose.
Contact any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer if the problem cannot be
repaired, or if repair procedures are unknown.
The steering lock
system may be
malfunctioning.
Contact any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
Related Links
9-3. If the engine will not start
564
If a tire is flat
Replacing a tire with a spare tire (vehicles with a spare tire)
Your vehicle is equipped with a spare tire. The flat tire can be replaced with the
spare tire.
WARNING
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the wheel beyond
repair, which could result in an accident.
Preparation for lifting the vehicle with a jack
Before lifting the vehicle with a jack, perform the following.
●
Stop the vehicle in a safe place on a hard, flat surface.
●
Set the parking brake.
●
Change the shift position to P.
●
Stop the engine.
●
Turn on the emergency flashers.
Storage position of the spare tire/tools/jack
A
Jack
WARNING
Improper use of the tire jack may cause the vehicle to fall. Therefore, observe the
following precatutions.
9-4. If a tire is flat
565
9
When tr
ouble arises
WARNING
●
Do not use the tire jack for any purpose other than replacing tires or installing and
removing tire chains.
●
Only use the tire jack that comes with this vehicle for replacing a flat tire. Do not
use it on other vehicles, and do not use other tire jacks for replacing tires on this
vehicle.
B
Jack handle
C
Wheel bolt socket
D
Towing eyelet
E
Guide pin
F
Wheel bolt wrench
G
Spare tire
H
Screwdriver
Taking out the jack
1
Remove the deck board.
2
Take out the jack.
Taking out the spare tire
WARNING
When storing the spare tire, be careful so that fingers, etc. do not get caught between the
vehicle body and spare tire.
A
Remove the rubber band.
9-4. If a tire is flat
566
1
Remove the deck board.
2
Loosen the center fastener that secures the
spare tire.
Removing a flat tire
WARNING
■
Precautions for replacing a flat tire
●
Do not try to remove the wheel ornament by hand.
Take due care in handling the ornament to avoid unexpected personal injury.
●
Do not touch the disc wheels or the area around the brakes immediately after the
vehicle has been driven.
After the vehicle has been driven the disc wheels and the area around the brakes
will be extremely hot. Touching these areas with hands, feet or other body parts while
changing a tire, etc., may result in burns.
■
Setting the power back door when replacing the tires
When replacing a flat tire, make sure to disable the power back door. If not disabled, the
power back door may operate unintentionally, and hands or fingers may be caught and
injured.
1
Chock the tires.
Wheel chock position
9-4. If a tire is flat
567
9
When tr
ouble arises
●
Flat tire: Front left
Place the wheel chock behind the rear right tire.
●
Flat tire: Front right
Place the wheel chock behind the rear left tire.
●
Flat tire: Rear left
Place the wheel chock in front of the front right tire.
●
Flat tire: Rear right
Place the wheel chock in front of the front left tire.
2
Using a wheel bolt wrench, slightly loosen
the wheel bolts (approximately one turn).
3
Turn the tire jack portion by hand until the
notch of the jack is in contact with the jack
point.
WARNING
Make sure the jack is positioned properly in the jack point.
4
Install the wheel bolt wrench to the jack han-
dle.
9-4. If a tire is flat
568
5
Raise the vehicle until the tire is slightly raised
off the ground.
WARNING
Observe the following precautions when using the jack.
●
Do not put any part of your body under the vehicle while it is supported by the
jack.
●
Do not start the engine or drive the vehicle while the vehicle is supported by the
jack.
●
Do not raise the vehicle while someone is inside.
●
When raising the vehicle, do not put an object on or under the jack.
●
Do not raise the vehicle to a height greater than that required to replace the tire.
●
Use a jack stand if it is necessary to get under the vehicle.
6
Remove the uppermost wheel bolt and install
the guide pin by hand.
Turn the guide pin clockwise to tighten it until it
stops.
WARNING
When removing or installing a tire, make sure to use the guide pin.
Also, the guide pin is made of resin. It may be damaged if the wheel is placed
anywhere other than
or if a large amount of force is applied to the guide pin.
9-4. If a tire is flat
569
9
When tr
ouble arises
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