Lexus GX460 (2022 year). Manual in english — page 33

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

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.

543

When trouble

NOTICE

■

To ensure the tire pressure warning system operates properly

Do not install tires with different specifications or makers, as the tire pressure warning

system may not operate properly.

544

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

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

■

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

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. 570)

●

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

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

549

When trouble

Jack
Tool box
Spare tire

Location of the spare tire, jack and tools

2
3

550

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

Tighten all the jack handle bolts securely using a Phillips-head screwdriver, to prevent

the extension parts from coming apart unexpectedly.

551

When trouble

Remove the cover.

Unhook the rubber band and take
out the jack.

For loosening
For tightening

Remove the cover.

Take out the tool box.

Taking out the jack

Taking out the tool box

552

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.

Remove the cover.

To protect the bodywork, place a rag

between the screwdriver and the vehi-

cle body.

Taking out the spare tire

553

When trouble

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.

Pull out the spare tire and remove
the holding bracket.

554

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

555

When trouble

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.

556