Lexus GX460 (2023 year). Manual in english - page 17

GX460_OM_OM60R43U_(U)

When trouble

(Flashes)

Low speed four-wheel drive indicator light

Indicates a malfunction in the four-wheel drive system if the light

continues flashing. (

P. 357)



Have the vehicle inspected by your Lexus dealer immediately.

(Flashes)

Center differential lock indicator light

Indicates a malfunction in the four-wheel drive system if the light

continues flashing. (

P. 357)



Have the vehicle inspected by your Lexus dealer immediately.

Open door warning light (warning buzzer)

Indicates that a hood, door or the glass hatch is not fully closed



Check that all the doors and the glass hatch are closed.

Low fuel level warning light

Indicates that remaining fuel is approximately 3.5 gal. (13.1 L, 2.9

Imp. gal.) or less



Refuel the vehicle.

Driver’s and front passenger’s seat belt reminder light (warning
buzzer)

Warns the driver and/or front passenger to fasten their seat belts



Fasten the seat belt.

If the front passenger’s seat is occupied, the front passenger’s

seat belt also needs to be fastened to make the warning light

(warning buzzer) turn off.

Tire pressure warning light

Indicates that:

• Flat tire

• Natural causes

• The tire pressure warning system is malfunctioning



Immediately stop the vehicle in a safe place.

Handling method(



P. 540)

Warning light

Warning light/Details/Actions

538

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Brake Override System warning light/Drive-Start Control warning
light

Brake Override System

Indicates that the accelerator and brake pedals are being

depressed simultaneously, and the Brake Override System is oper-

ating



Release the accelerator pedal and depress the brake pedal.

Indicates a malfunction in the Brake Override System (with warn-

ing buzzer)



Have the vehicle inspected by your Lexus dealer immediately.

Drive-Start Control

Indicates that the shift position was changed and Drive-Start Con-

trol was operated while depressing the accelerator pedal (with

warning buzzer)



Momentarily release the accelerator pedal.

Indicates a malfunction in the Drive-Start Control system (with

warning buzzer)



Have the vehicle inspected by your Lexus dealer immediately.

LDA indicator

Indicates a malfunction in the LDA (Lane Departure Alert)



When “Lane Departure Alert Unavailable” is displayed on the

multi-information display, turn the LDA system off, drive the

vehicle for a short time, and then turn the LDA system back on.

(

P. 249)

When a message other than above is displayed, follow the

instructions displayed in the message.

Warning light

Warning light/Details/Actions

539

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When trouble

: This light illuminates on the multi-information display.

: Open door warning buzzer:

The open door warning buzzer sounds to alert hood or one or more of the doors or
glass hatch are not fully closed (with the vehicle having reached a speed of 3 mph [5
km/h]).

: Driver’s seat belt warning buzzer:

The driver’s seat belt warning buzzer sounds to alert the driver that his or her seat belt
is not fastened. Once the engine switch is turned to ON, the buzzer sounds. If the seat
belt is still unfastened, the buzzer sounds intermittently for a certain period of time
after the vehicle reaches a certain speed.
Front passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer sounds to alert the front passenger
that his or her seat belt is not fastened. If the seat belt is unfastened, the buzzer sounds
intermittently for a certain period of time after the vehicle reaches a certain speed.

■

SRS warning light

This warning light system monitors the airbag sensor assembly, front airbag sensors, side

and curtain shield airbag sensors, rear side and curtain shield airbag sensors, floor sen-

sor, driver’s seat belt buckle switch, front passenger occupant classification system (ECU

and sensors), “PASSENGER AIR BAG” indicator lights, front passenger’s seat belt

buckle switch, seat belt pretensioner assemblies, airbags, interconnecting wiring and

power sources. (

P. 36)

■

Front passenger detection sensor, seat belt reminder and warning buzzer

●

If luggage is placed on the front passenger seat, the front passenger detection sensor

may cause the warning light to flash and the warning buzzer to sound even if a passen-

ger is not sitting in the seat.

●

If a cushion is placed on the seat, the sensor may not detect a passenger, and the warn-

ing light may not operate properly.

■

If the malfunction indicator lamp comes on while driving

First check the following:

●

Is the fuel tank empty?
If it is, fill the fuel tank immediately.

●

Is the fuel tank cap loose?
If it is, tighten it securely.

The light will go off after several driving trips.

If the light does not go off even after several trips, contact your Lexus dealer as soon as

possible.

540

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■

If the low speed four-wheel drive indicator light or the center differential lock indicator

light blinks

Take the specified steps. (



P. 359)

■

When the tire pressure warning light comes on

Inspect the tires to check if a tire is punctured.
If a tire is punctured:

P. 548

If none of the tires are punctured:

Turn the engine switch off then turn it to IGNITION ON mode. Check if the tire pressure

warning light comes on or flashes.



If the tire pressure warning light comes on
After the temperature of the tires has lowered sufficiently, check the inflation pressure

of each tire and adjust them to the specified level.
If the warning light does not turn off even after several minutes have elapsed, check

that the inflation pressure of each tire is at the specified level and perform initialization.

(

P. 490)

If the warning light does not turn off even after several minutes have elapsed, have the

vehicle inspected by your Lexus dealer immediately.



If the tire pressure warning light flashes for 1 minute then stay on

There may be a malfunction in the tire pressure warning system. Have the vehicle

inspected by your Lexus dealer immediately.

■

The tire pressure warning light may turn on due to natural causes

The tire pressure warning light may turn on due to natural causes such as natural air leaks

or tire inflation pressure changes caused by temperature. In this case, adjusting the tire

inflation pressure will turn off the warning light (after a few minutes).

■

When a tire is replaced with a spare tire

The tire pressure warning light will turn on if the tire inflation pressure of the spare tire is

low. If a tire goes flat, the tire pressure warning light will not turn off even though the flat

tire has been replaced with the spare tire.

■

Conditions that the tire pressure warning system may not function properly

P. 494

■

If the tire pressure warning light frequently comes on after blinking for 1 minute

If the tire pressure warning light frequently comes on after blinking for 1 minute when the

engine switch is turned to IGNITION ON mode, have it checked by your Lexus dealer.

■

Warning buzzer

In some cases, the buzzer may not be heard due to being in a noisy location or audio

sound.

■

Customization

The vehicle speed linked seat belt reminder buzzer can be disabled.

(Customizable features:



P. 604)

541

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When trouble

WARNING

■

If both the ABS and the brake system warning lights remain on

Stop your vehicle in a safe place immediately and contact your Lexus dealer. The vehi-

cle will become extremely unstable during braking, and the ABS system may fail, which

could cause an accident resulting in death or serious injury.

■

If the tire pressure warning light comes on

Be sure to observe the following precautions. Failure to do so could cause loss of vehi-

cle control and result in death or serious injury.

●

Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure

immediately.

●

If the tire pressure warning light comes on even after tire inflation pressure adjust-

ment, it is probable that you have a flat tire. Check the tires. If the tire is flat, change to

the spare tire and have the flat tire repaired by the nearest Lexus dealer.

●

Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose

control of the steering wheel or the brakes.

■

If a blowout or sudden air leakage should occur

The tire pressure warning system may not activate immediately.

542

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WARNING

■

Maintenance of the tires

Each tire, including the spare (if provided), should be checked monthly when cold and

inflated to the inflation pressure recommended by the vehicle manufacturer on the

vehicle placard or tire inflation pressure label (tire and load information label). (If your

vehicle has tires of a different size than the size indicated on the vehicle placard or tire

inflation pressure label [tire and load information label], you should determine the

proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire pressure moni-

toring system (TPMS-tire pressure warning system) that illuminates a low tire pressure

telltale (tire pressure warning light) when one or more of your tires is significantly

under-inflated. Accordingly, when the low tire pressure telltale (tire pressure warning

light) illuminates, you should stop and check your tires as soon as possible, and inflate

them to the proper pressure. Driving on a significantly under-inflated tire causes the

tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency

and tire tread life, and may affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for proper

tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure,

even if under-inflation has not reached the level to trigger illumination of the TPMS low

tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system) mal-

function indicator to indicate when the system is not operating properly. The TPMS

(tire pressure warning system) malfunction indicator is combined with the low tire pres-

sure telltale (tire pressure warning light). When the system detects a malfunction, the

telltale will flash for approximately one minute and then remain continuously illumi-

nated. This sequence will continue upon subsequent vehicle start-ups as long as the

malfunction exists. When the malfunction indicator is illuminated, the system may not

be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a variety of reasons,

including the installation of replacement or alternate tires or wheels on the vehicle that

prevent the TPMS (tire pressure warning system) from functioning properly. Always

check the TPMS (tire pressure warning system) malfunction telltale after replacing one

or more tires or wheels on your vehicle to ensure that the replacement or alternate

tires and wheels allow the TPMS (tire pressure warning system) to continue to function

properly.

544

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If a warning message is displayed

Multi-information display
Handling method
Follow the instructions of the mes-
sage on the multi-information dis-
play.

If any of the warning lights comes on again after the following actions have been
performed, contact your Lexus dealer.

The warning lights and warning buzzers operate as follows depending on the
content of the message. If a message indicates the need for inspection by a
dealer, have the vehicle inspected by your Lexus dealer immediately.

: A buzzer sounds the first time a message is shown on the multi-information display.

The multi-information display shows warnings of system malfunctions, incor-
rectly performed operations, and messages that indicate a need for mainte-
nance. When a message is shown, perform the correction procedure
appropriate to the message.

Messages and warnings

Warning light

Warning

buzzer

Warning



Sounds

• Indicates an important situation, such as when a sys-

tem related to driving is malfunctioning or that dan-

ger may result if the correction procedure is not

performed

• Indicates a situation, such as when damage to the

vehicle or danger may result

Comes on or

flashes

Sounds

Indicates an important situation, such as when the sys-

tems shown on the multi-information display may be

malfunctioning



Does not

sound

• Indicates a condition, such as malfunction of electri-

cal components, their condition, or indicates the

need for maintenance

• Indicates a situation, such as when an operation has

been performed incorrectly, or indicates how to per-

form an operation correctly

545

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When trouble

■

Warning messages

The warning messages explained below may differ from the actual messages according

to operation conditions and vehicle specifications.

■

Warning buzzer

In some cases, the buzzer may not be heard due to being in a noisy location or audio

sound.

■

If “ENGINE OIL LOW”/“Engine Oil Level Low Add or Replace” is shown

The engine oil level is low. Check the level of the engine oil, and add if necessary.
This message may appear if the vehicle is stopped on a slope. Move the vehicle to a level

surface and check to see if the message disappears.

■

If “AUTO POWER OFF TO CONSERVE BATTERY”/“Auto power off to conserve bat-

tery” is shown

Power was turned off due to the automatic power off function. Next time when starting

the engine, increase the engine speed slightly and maintain that level for approximately 5

minutes to recharge the battery.

■

If “ENGINE OIL PRESSURE LOW”/“Oil Pressure Low Stop in a Safe Place See

Owner’s Manual” is shown

Indicates abnormal engine oil pressure.
Immediately stop the vehicle in a safe place and contact your Lexus dealer. Continuing to

drive the vehicle may be dangerous.

■

If “HIGH TRANSMISSION FLUID TEMPERATURE”/“High Transmission Fluid Temp

See Owner’s Manual” is shown.

It indicates that the automatic transmission fluid temperature is too high.
Immediately stop the vehicle in a safe place, shift the shift lever to P and wait until the

warning message disappear. If the warning message disappears, you may start the vehi-

cle again. If the warning message does not disappear, contact your Lexus dealer.

■

If “Check Transmission System” is shown.

The automatic transmission system is malfunctioning.
Have the vehicle inspected by your Lexus dealer.

■

If “ACCELERATOR AND BRAKE PEDALS PRESSED SIMULTANEOUSLY”/

“Accelerator and Brake Pedals Pressed Simultaneously” is shown on the multi-informa-

tion display

The accelerator and brake pedal are being depressed simultaneously. (

P. 169)

Release the accelerator pedal and depress the brake pedal.

■

If “HEADLIGHT SYSTEM MALFUNCTION VISIT YOUR DEALER”/“Headlight Sys-

tem Malfunction Visit Your Dealer” is displayed

The following systems may be malfunctioning. Have the vehicle inspected by your Lexus

dealer immediately.

●

The LED headlight system

●

The automatic headlight leveling system

●

Automatic High Beam

546

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■

If a message that indicates the malfunction of front camera is displayed

The following systems may be suspended until the problem shown in the message is

resolved. (



P. 236, 535)

●

PCS (Pre-Collision System)

●

LDA (Lane Departure Alert)

●

Automatic High Beam

●

Dynamic radar cruise control

■

If a message that indicates the malfunction of radar sensor is displayed

The following systems may be suspended until the problem shown in the message is

resolved. (



P. 236, 535)

●

PCS (Pre-Collision System)

●

LDA (Lane Departure Alert)

●

Dynamic radar cruise control

■

If “Radar Cruise Control Unavailable” is shown

The dynamic radar cruise control system cannot be used temporarily.
Use the system when it becomes available again.

■

If “Maintenance Required Soon” is shown (U.S.A. only)

Indicates that all maintenance according to the driven distance on the maintenance

schedule

should be performed soon. Comes on approximately 4500 miles (7200 km)

after the message has been reset. If necessary, perform maintenance. Please reset the

message after the maintenance is performed. (

P. 465)

: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supplement” for

the maintenance interval applicable to your vehicle.

■

If “Maintenance Required Visit Your Dealer” is shown (U.S.A. only)

Indicates that all maintenance is required to correspond to the driven distance on the

maintenance schedule

Comes on approximately 5000 miles (8000 km) after the message has been reset.

(The indicator will not work properly unless the message has been reset.) Perform the

necessary maintenance. Please reset the message after the maintenance is performed.

(

P. 465)

: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supplement” for

the maintenance interval applicable to your vehicle.

■

If “Oil Maintenance Required Soon” is shown

Indicates that the engine oil should be scheduled to be changed.
Check the engine oil and change it if necessary. After changing the engine oil, make sure

to reset the message. (

P. 478)

■

If “OIL MAINTENANCE REQUIRED” “Oil Maintenance Required Visit Your Dealer”

is shown

Indicates that the engine oil should be scheduled to be changed.
Check and change the engine oil, and oil filter by your Lexus dealer. After changing the

engine oil, make sure to reset the message. (



P. 478)

■

If “Check Access System with Elec. Key” is shown

The smart access system with push-button start may be malfunctioning. Have the vehicle

inspected by your Lexus dealer immediately.

547

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When trouble

■

If “SEE OWNER’S MANUAL”/“See Owner’s Manual” is shown

●

If any of the following messages are shown on the multi-information display, follow the

instructions.
• “Engine Coolant Temp High” (

P. 573)

●

If any of the following messages are shown on the multi-information display, it may indi-

cate a malfunction. Immediately stop the vehicle and contact your Lexus dealer.
• “BRAKING POWER LOW”/“Braking Power Low”

• “Charging System Malfunction”

■

If a following message is shown, take appropriate action and confirm that the message

has disappeared. (

P. 361) (if equipped)

●

“CRAWL NOT AVAILABLE SELECT L4 AND SHIFT TO D OR R POSITION”/

“Crawl Not Available Select L4 and Shift to D or R Position”

●

“CRAWL NOT AVAILABLE CHECK SYSTEM OPERATION CONDITIONS”/

“Crawl Not Available Check System Operation Conditions”

■

If “VISIT YOUR DEALER”/“Visit Your Dealer” or “CHECKED BY A DEALER”/

“checked by a dealer” is shown

The system or part shown on the multi-information display is malfunctioning. Have the

vehicle inspected by your Lexus dealer immediately.

548

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If you have a flat tire

●

Stop the vehicle in a safe place on a hard, flat surface.

●

Set the parking brake.

●

Shift the shift lever to P.

●

Turn off the rear height control air suspension (if equipped). (



P. 352)

●

Stop the engine.

●

Turn on the emergency flashers. (

P. 524)

Your vehicle is equipped with a spare tire. The flat tire can be replaced with
the spare tire.
For details about tires:



P. 488

WARNING

■

If you have a flat tire

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.

Before jacking up the vehicle

551

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When trouble

WARNING

■

Using the tire jack

Improper use of the tire jack may cause the vehicle to suddenly fall off the jack, leading

to death or serious injury.

●

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.

●

Always check that the tire jack is securely set to the jack point.

●

Do not put any part of your body under the vehicle while it is supported by the jack.

●

Do not start or run the engine while your 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.

●

Vehicles with rear height control air suspension: Be sure to turn off the height control

and stop the engine.

Take particular care when lowering the vehicle to ensure that no one working on or

near the vehicle will be injured.

■

Using the jack handle/wheel nut wrench (used with jack handle)

Tighten all the jack handle bolts securely to prevent the extension parts from coming

apart unexpectedly.

553

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When trouble



Vehicles with Jack handle
Assembling the jack handle.
Remove the jack handle and the jack handle extension bar from the tool box
and assemble by following these steps.

Loosen the bolt and the screw
using either the jack handle end
or a screwdriver.

Assemble the jack handle exten-
sion bar and the jack handle and
tighten the bolt and the screw.

Check that the bolt and screw are

firmly tightened.



Vehicles without Jack handle
Assembling the wheel nut wrench (used with jack handle).
Remove the wheel nut wrench and the jack handle extension bar from the tool
box and assemble by following these steps.

Loosen the bolt using a wheel nut
wrench.

Taking out the spare tire

554

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Assemble the jack handle exten-
sion bar and wheel nut wrench
and tighten the bolt.

Check that the bolts are firmly tight-

ened.

Remove the cover.

To protect the bodywork, place a rag

between the screwdriver and the vehi-

cle body.

Insert the jack handle extension into
the lowering socket.

Lower
Raise

Place a rag under the jack handle

extension to protect the rear bumper.

Lower the spare tire completely to
the ground.

If the spare tire becomes caught on the suspension components, raise the tire,
pull it towards the rear of the vehicle, and begin lowering it again.

556

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Chock the tires.

Pry off the wheel ornament, using
the beveled end of the wheel nut
wrench as shown.

To protect the wheel ornament, place a

rag between the wheel nut wrench and

the wheel ornament.

Slightly loosen the wheel nuts (one
turn).

Replacing a flat tire

Flat tire

Wheel chock position

Front

Left-hand side

Behind the rear right-hand side tire

Right-hand side

Behind the rear left-hand side tire

Rear

Left-hand side

In front of the front right-hand side tire

Right-hand side

In front of the front left-hand side tire

557

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When trouble



Vehicles with Jack handle
Assembling the jack handle.
Remove the jack handle, jack handle extension bar and jack handle bar from
the tool box and assemble by following these steps.

Loosen the bolt and the screw
using either the jack handle end
or a screwdriver.

Assemble the jack handle exten-
sion bar and the jack handle bar
and tighten the bolts.

Check that the bolts are firmly tight-

ened.

Assemble the jack handle exten-
sion bar and the jack handle and
tighten the screw.

Check that the screw is firmly tight-

ened.

558

GX460_OM_OM60R43U_(U)



Vehicles without Jack handle
Assembling the wheel nut wrench (used with jack handle).
Remove the wheel nut wrench, jack handle extension bar and jack handle bar
from the tool box and assemble by following these steps.

Loosen the bolt using a wheel nut
wrench.

Assemble the jack handle bar,
jack handle extension bar and
wheel nut wrench and tighten the
bolts.

Check that the bolts are firmly tight-

ened.

Position the jack at the jack points as
shown.

Front

Under the chassis frame side rail

Rear

Under the rear axle housing

560

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WARNING

■

Replacing a flat tire

●

Observe the following precautions.

Failure to do so may result in serious injury:
• Lower the spare tire completely to the ground before removing it from under the

vehicle.

• 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.

●

Failure to follow these precautions could cause the nuts to loosen and the wheel may

fall off, which could lead to an accident causing death or serious injury.
• Never use oil or grease on the wheel bolts or wheel nuts.

Oil and grease may cause the wheel nuts to be excessively tightened, leading to

bolt or disc wheel damage. In addition, the oil or grease can cause the wheel nuts

to loosen and the wheel may fall off, causing a serious accident. Remove any oil or

grease from the wheel bolts or wheel nuts.

• Have the wheel nuts tightened with a torque wrench to 76 ft•lbf (103 N•m,

10.5 kgf•m) as soon as possible after changing wheels.

• Do not attach a heavily damaged wheel ornament, as it may fly off the wheel while

the vehicle is moving.

• When installing a tire, only use wheel nuts that have been specifically designed for

that wheel.

• If there are any cracks or deformations in the bolt screws, nut threads or bolt holes

of the wheel, have the vehicle inspected by your Lexus dealer.

561

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When trouble

Remove any dirt or foreign matter
from the wheel contact surface.

If foreign matter is on the wheel contact

surface, the wheel nuts may loosen

while the vehicle is in motion, and the

tire may come off the vehicle.

Install the spare tire and loosely
tighten each nut by hand to approxi-
mately the same amount.

Turn the wheel nuts until the washers

come into contact with the disc wheel.

Lower the vehicle.

Installing the spare tire

Wheel nut

Washer

Disc wheel

563

GX460_OM_OM60R43U_(U)

When trouble

Lay down the tire with the valve stem
facing up and install the holding
bracket, inserting the claw into the
wheel lug nut hole. Turn the jack
handle extension clockwise to take
up slack in the chain.

Then, check to ensure the claw is in the

wheel lug nut hole and the holding

bracket is centered in the wheel hub.

Claw
Holding bracket

Raise the tire.

While raising, pull the tire towards the

rear of the vehicle, taking care that the

tire goes up without catching on any

surrounding part, to prevent it from fly-

ing forward during a collision or sudden

braking.
After the tire goes half way up, check

that the suspended chain is able to enter

the tire hole, for proper storage.

Tightening torque:
34.4 ft•lbf (46.6 N•m, 4.8 kgf•m)
Confirm that the tire is not loose
after tightening:

Push and pull the tire
Try rotating

Visually check to ensure the tire is

not hung on surrounding parts.

If looseness or misassembly exists, repeat step and step .

Repeat step , any time the tire is lowered or disturbed.
Stow the tools and jack securely.

Stowing the flat tire, jack and all tools

incorrect

correct

564

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WARNING

■

After using the tools and jack

Before driving, make sure all the tools and jack are securely in place in their storage

location to reduce the possibility of personal injury during a collision or sudden brak-

ing.

NOTICE

■

When stowing the flat tire

Ensure that there is no object caught between the tire and the vehicle underbody.

■

When assembling the jack handle extension

Tighten all the joints securely. Otherwise the extension may come off and it may dam-

age the paint or vehicle body.

565

GX460_OM_OM60R43U_(U)

When trouble

If the engine will not start

One of the following may be the cause of the problem:

●

There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.

●

The engine may be flooded.
Try to restart the engine again following correct starting procedures.
(

P. 200)

●

There may be a malfunction in the engine immobilizer system. (



P. 76)

One of the following may be the cause of the problem:

●

The battery may be discharged. (



P. 570)

●

The battery terminal connections may be loose or corroded.

The engine starting system may be malfunctioning due to an electrical problem
such as an open circuit or a blown fuse. However, an interim measure is available
to start the engine. (



P. 566)

If the engine will not start even though correct starting procedures are being
followed (



P. 200), consider each of the following points:

The engine will not start even when the starter motor operates nor-
mally.

The starter motor turns over slowly, the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.

The starter motor does not turn over.

566

GX460_OM_OM60R43U_(U)

One of the following may be the cause of the problem:

●

One or both of the battery terminals may be disconnected.

●

The battery may be discharged. (



P. 570)

Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures

are unknown.

When the engine does not start, the following steps can be used as an interim
measure to start the engine if the engine switch is functioning normally.

Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to the ACCESSORY mode.
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 mal-
functioning. Have the vehicle inspected by your Lexus dealer.

The starter motor does not turn over, the interior lights and headlights
do not turn on, or the horn does not sound.

Emergency start function

2
3
4

567

GX460_OM_OM60R43U_(U)

When trouble

If the electronic key does not operate properly

Use the mechanical key (



P. 105) in

order to perform the following opera-
tions (driver’s door only):

Locks all the doors
Closes the windows and moon roof

(turn and hold)
Unlocks the doors

Turning the key rearward unlocks the

driver’s door. Turning the key once again

unlocks the other doors.

Opens the windows and moon roof

(turn and hold)

: These settings must be customized at your Lexus dealer.

If communication between the electronic key and vehicle is interrupted
(



P. 128) or the electronic key cannot be used because the battery is

depleted, the smart access system with push-button start and wireless
remote control cannot be used. In such cases, the doors can be opened and
the engine can be started by following the procedure below.

Locking and unlocking the doors and key linked functions

568

GX460_OM_OM60R43U_(U)

Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of the
electronic key to the engine switch.

When the electronic key is detected, a

buzzer sounds and the engine switch

will turn to IGNITION ON mode.
When the smart access system with

push-button start is deactivated in cus-

tomization setting, the engine switch will

turn to ACCESSORY mode.

Firmly depress the brake pedal and check that

is shown on the multi-

information display.

Press the engine switch shortly and firmly.

In the event that the engine still cannot be started, contact your Lexus dealer.

■

Stopping the engine

Shift the shift lever to P and press the engine switch as you normally do when stopping

the engine.

■

Replacing the 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. (

P. 507)

■

Alarm (for Canada)

Using the mechanical key to lock the doors will not set the alarm system. If a door is

unlocked using the mechanical key when the alarm system is set, the alarm may be trig-

gered. (

P. 77)

■

Changing engine switch modes

Within 10 seconds of the buzzer sounding, release the brake pedal and press the engine

switch.
The engine does not start and modes will be changed each time the switch is pressed.

(

P. 201)

■

When the electronic key does not work properly

●

Make sure that the smart access system with push-button start has not been deacti-

vated in the customization setting. If it is off, turn the function on.
(Customizable features:

P. 604)

●

Check if battery-saving mode is set. If it is set, cancel the function. (