LEXUS GX 460 (2019 year). Instruction - part 33

(Flashes)

Low speed four-wheel drive indicator light

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

continues flashing. (

P. 346)

 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. 346)

 Have the vehicle inspected by your Lexus dealer immediately.

Open door warning light (warning buzzer)

Indicates that a 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.

Master warning light

A buzzer sounds and the warning light comes on and flashes to

indicate that the master warning system has detected a malfunc-

tion.

 P. 526

Tire pressure warning light

When the light comes on:

Low tire inflation pressure such as

• Natural causes (

P. 522)

• Flat tire (

P. 540)

 Adjust the tire inflation pressure to the specified level.

The light will turn off after a few minutes. In case the light does

not turn off even if the tire inflation pressure is adjusted, have the

system checked by your Lexus dealer.

When the light comes on after blinking for 1 minute:

Malfunction in the tire pressure warning system

 Have the system checked by your Lexus dealer.

Warning light

Warning light/Details/Actions

521

When trouble

: Open door warning buzzer:

P. 528

: Seat belt reminders:

The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt is not
fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer
sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer
sounds once. If the seat belt is still unfastened after 30 seconds, the buzzer will sound
intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for 20 more seconds.
The front passenger’s seat belt buzzer sounds to alert the front passenger that his or
her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a speed of
12 mph (20 km/h). If the seat belt is still unfastened after 30 seconds, the buzzer will
sound intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different tone for 20 more seconds.

■

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), “AIR BAG ON” indicator light, “AIR BAG OFF” indicator light, front pas-

senger’s seat belt buckle switch, seat belt pretensioner assemblies, airbags, intercon-

necting 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.

522

■

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

light blinks
Take the specified steps. (

P. 348)

■

When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level.

■

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. 478

■

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. 592)

523

When trouble

CAUTION

■

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.

524

CAUTION

■

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.

526

If a warning message is displayed

Master warning light

The master warning light also comes on

or flashes in order to indicate that a mes-

sage is currently being displayed on the

instrument cluster.

Multi-information display
Rear height control air suspension
display

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

If a warning is shown on the instrument cluster, stay calm and perform the fol-
lowing actions:

2
3

527

When trouble

Warning message and warning buzzer list

Warning message

Details/Actions

(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.

 Slow the vehicle by applying the brakes.

(If equipped)

Indicates that your vehicle is nearing the vehicle ahead

(in vehicle-to-vehicle distance mode)

A buzzer also sounds.

 Slow the vehicle by applying the brakes.

(If equipped)

Alerts the driver that the vehicle is about to or actually

deviates from the lane (while the LDA [Lane Departure

Alert] system is operating)

The lane line flashes.

The warning buzzer sounds continuously.

 Check around the vehicle and back to inside of the

lane lines.

(Flashes rapidly)

528

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 3 mph (5 km/h),

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 glass hatch is not fully closed

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

flashes and a buzzer sounds to indicate that

the glass hatch is not yet fully closed.

 Close the glass hatch.

(If equipped)

Indicates a malfunction in the Intuitive parking assist

All assist-sensors flash.

A buzzer also sounds.

 Have the vehicle inspected by your Lexus dealer.

(If equipped)

Indicates that a intuitive parking assist is dirty or covered

with ice

A buzzer also sounds.

 Clean the sensor.

Indicates that the vehicle is being driven at 3 mph (5

km/h) or more with the parking brake still engaged

A buzzer also sounds.

 Release the parking brake.

Warning message

Details/Actions

(U.S.A.)

(Canada)

(Flashes)

529

When trouble

(If equipped)

Indicates that the radar sensor is dirty or covered with

ice

A buzzer also sounds.

 Clean the sensor.

(If equipped)

Indicates that the radar cruise control system is unable to

judge vehicle-to-vehicle distance

A buzzer also sounds.

 Turn off snow mode.

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

them to a mode other than AUTO or high speed

wiper operation.

(If equipped)

Indicates that the LDA (Lane Departure Alert) system is

suspended

The camera sensor temperature is higher than the

operation temperature range.

A buzzer also sounds.

 Restart the LDA after driving for a while.

(If equipped)

Indicates that the Blind Spot Monitor sensor or the sur-

rounding area on the bumper is dirty or covered with ice

A buzzer also sounds.

 Clean the sensor and its surrounding area on the

bumper.

Indicates a malfunction in:

• The cruise control system (if equipped); or

• The dynamic radar cruise control system (if equipped)

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 your Lexus dealer.

Warning message

Details/Actions

530

(If equipped)

Indicates a malfunction in the LDA (Lane Departure

Alert) system

A buzzer also sounds.

 Have the vehicle inspected by your Lexus dealer.

Indicates a malfunction in the steering lock system

A buzzer also sounds.

 Have the vehicle inspected by your Lexus dealer.

(If equipped)

Indicates a malfunction in the pre-collision system

A buzzer also sounds.

 Have the vehicle inspected by your Lexus dealer.

(If equipped)

Indicates a malfunction in the BSM (Blind Spot Monitor)

system

A buzzer also sounds.

 Have the vehicle inspected by your Lexus dealer.

Indicates abnormal engine oil pressure

The warning light may come on if the engine oil pres-

sure is too low.

A buzzer also sounds.

 Immediately stop the vehicle in a safe place and

contact your Lexus dealer.

Warning message

Details/Actions

(Flashes)

531

When trouble

Indicates that the automatic transmission fluid tempera-

ture is too high

A buzzer also sounds.

 Immediately stop the vehicle in a safe place, shift the

shift lever to P and wait until the warning message

and light go off. If the warning message and light go

off, you may start the vehicle again.

If the warning message and light do not go off, con-

tact your Lexus dealer.

Indicates a malfunction in the automatic transmission

system

A buzzer also sounds.

 Have the vehicle inspected by your Lexus dealer.

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

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

A buzzer also sounds.

 Close the moon roof.

Indicates that engine oil level is low

A buzzer also sounds.

 Check the level of engine oil, and add if necessary.

Indicates a malfunction in:

• The LED headlight system;

• The automatic headlight leveling system; or

• The Automatic High Beam system (if equipped)

A buzzer also sounds.

 Have the vehicle inspected by your Lexus dealer.

Indicates that the washer fluid level is low

 Add washer fluid.

Warning message

Details/Actions

(Flashes)

532

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

for the maintenance interval applicable to your vehicle.

(If equipped)

Indicates that the pre-collision system is not currently

functional because the grille cover or the sensor is dirty

 Check the grille cover and the sensor and clean

them if they are dirty.

(If equipped)

Indicates a malfunction in the rear height control air sus-

pension

A buzzer also sounds.

 Immediately stop the vehicle in a safe place and

contact your Lexus dealer.

(U.S.A. only)

Indicates that all maintenance according to the driven

distance on the maintenance schedule

should be per-

formed soon.

Comes on approximately 4500 miles (7200 km) after

the message has been reset.

 If necessary, perform maintenance.

(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. 451)

Warning message

Details/Actions

533

When trouble

Warning message

Details/Actions

Indicates that the Crawl Control is canceled while in use

A buzzer also sounds.

 Use the Crawl Control under the proper operating

conditions. (

P. 351)

(If equipped)

Indicates that the Crawl Control is not available

 Select the four-wheel driving position switch in L4

and shift the shift lever to D or R.

(If equipped)

Indicates that the Crawl Control is not available

 Confirm the operating conditions of the Crawl

Control.

(If equipped)

Indicates that the VSC OFF switch is pressed or second

start mode is selected while the Multi-terrain Select sys-

tem is in use

 While the Multi-terrain Select system is in use, vehi-

cle stability control cannot be turned off and second

start mode cannot be activated.

(If equipped)

Indicates that the Multi-terrain Select system is canceled

while in use

A buzzer also sounds.

 Use the Multi-terrain Select system under the

proper operating conditions. (

P. 329)

(If equipped)

534

■

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

■

The LDA (Lane Departure Alert) lane departure warning function (if equipped)
In the following situations, the warning message will not be displayed even if a lane line is

crossed.

●

When the vehicle speed deviates from the operating range of the LDA system func-

tions

●

When the lane lines cannot be recognized

■

Conditions that the tire pressure warning system may not function properly
P. 478

■

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

sound.

535

When trouble