2020 Lexus GX460 warning lights

GX460_OM_OM60R27U_(U)
4015-3. Using the storage features
5
Interior features
■Auxiliary box light (type B)
●The auxiliary box light turns on when the tail lights are on.
●The brightness of the auxiliary box light changes in conjunction with the instrument
cluster light. ( P. 89)
■Closing the auxiliary box lid
Slide the auxiliary box lid forward.
WARNING
■Caution while driving
Do not place cups, beverage cans or bottles in the box. They may be thrown out of the
box in the event of sudden bra king, sudden swerving or an accident, resulting in injury.
(type B and C)
■Items unsuitable for storing (type A)
●Do not store items heavier than 0.4 lb. (0.2 kg).
Doing so may cause the auxiliary box to open and the items inside may fall out, result-
ing in an accident.
●Do not put large items in the overhead console.
The overhead console may not be able to be shut from the conversation mirror state.

488
GX460_OM_OM60R27U_(U)6-3. Do-it-yourself maintenance
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement. (
P. 491)
●If the replaced fuse blows again, have th e vehicle inspected by your Lexus dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
WARNING
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to th e vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage rati ng than indicated, or use any other object
in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wi re, even as a temporary fix.
●Do not modify the fuses or the fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload dete rmined and repaired by your Lexus dealer,
as soon as possible.

498
GX460_OM_OM60R27U_(U)6-3. Do-it-yourself maintenance
■LED lights
The headlights, parking lights/daytime running
lights, front side marker lights, fog lights,
side turn signal lights, high mounted stoplig ht, stop/tail lights and license plate lights con-
sist of a number of LEDs. If any of the LEDs burn out, take your vehicle to your Lexus
dealer to have the light replaced.
■Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact your Lexus dealer for mo re information in the following situations:
●Large drops of water are built up on the inside of the lens.
●Water has built up inside the headlight.
WARNING
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately after turning
off the headlights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bu lb with bare hands. When it is unavoid-
able to hold the glass portion, use and hold with a clean dry cloth to avoid getting
moisture and oils on the bulb.
Also, if the bulb is sc ratched or dropped, it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failure to do so may result
in heat damage, fire, or water entering th e headlight unit. This may damage the head-
lights or cause condensation to build up on the lens.
●Do not attempt to repair or disassemble light bulbs, connectors, electric circuits or
component parts.
Doing so may result in death or se rious injury due to electric shock.
■To prevent damage or fire
●Make sure bulbs are fully seated and locked.
●Check the wattage of the bulb before installing to prevent heat damage.

511
GX460_OM_OM60R27U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspecte d by your Lexus dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light (warning buzzer) Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning.
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer. Continuing to drive the vehicle may be dangerous.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer.
Low engine oil pressure warning light*1
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system
 Have the vehicle inspected by your Lexus dealer immediately.
High coolant temperature warning light (warning buzzer)*1
Indicates that the engine coolant temperature is too high
 Immediately stop the vehicle in a safe place. Handling method
( P. 546)
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
 Have the vehicle inspected by your Lexus dealer immediately.

5177-2. Steps to take in an emergency
GX460_OM_OM60R27U_(U)
7
When trouble arises
WARNING
■If both the ABS and the brake sy stem warning lights remain on
Stop your vehicle in a safe place immediat ely and contact your Lexus dealer. The vehi-
cle will become extremely unstable during br aking, and the ABS system may fail, which
could cause an accident resultin g 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.

520
GX460_OM_OM60R27U_(U)7-2. Steps to take in an emergency
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 ag ain 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 warn ings of system malfunctions, incor-
rectly performed operations, and messag es that indicate a need for mainte-
nance. When a message is shown, perform the correction procedure
appropriate to the message.
1
2
Messages and warnings
Warning lightWarning 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 flashesSounds
Indicates an important situat ion, 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

606Alphabetical index
GX460_OM_OM60R27U_(U)
Alphabetical index
A/C .................................................376, 386Air conditioning filter........................482
ABS (Anti-lock Brake System)........ 351 Function ................................................... 351
Warning light ........................................ 512
Active Traction Control .................... 352
Air conditioning filter .......................... 482
Air conditioning system ..........376, 386 Air conditioning filter........................482
Micro dust and pollen filter ............ 381
Airbags ........................................................ 36 Airbag operating conditions ........... 44
Airbag precautions for your child........................................ 39
Airbag warning light ............................ 511
Correct driving posture .................... 28
Curtain shield airbag operating conditions........................ 44
Curtain shield airbag precautions ........................................... 39
General airbag precautions............ 39
Locations of airbags ............................ 36
Modification and disposal of airbags ............................ 43
Side airbag operating conditions .............................................. 44
Side airbag precautions..................... 39
Side and curtain shield airbags operating conditions........................ 44
Side and curtain shield airbags precautions ........................................... 39
SRS airbags.............................................. 36
SRS warning light.................................. 511
Alarm Alarm........................................................... 78
Warning buzzer .................................... 511 Anchor brackets...................................... 58
Antennas (smart access system
with push-button start) .......................121
Anti-lock brake system (ABS).......... 351 Function ....................................................351
Warning light ......................................... 512
Armrest ...................................................... 419
Assist grip ................................................ 420
Audio input
*
Audio system*
Automatic headlight leveling system .......................................211
Automatic High Beam ......................... 212
Automatic light control system ........ 210
Automatic transmission..................... 202 If the shift lever cannot be shifted from P ...................................205
S mode.................................................... 203
AUX port
*
Auxiliary boxes ......................... 400, 403
AVS ........................................................... 339
Back door ..................................................... 111
Back-up lights Replacing light bulbs ....................... 496
Wattage ...................................................561
Battery ...................................................... 460 Battery checking ................................460
If the vehicle battery is discharged......................................... 543
Preparing and checking before winter .................................... 367
Warning light .......................................... 511
Bluetooth
®*
A
B

609Alphabetical index
GX460_OM_OM60R27U_(U)
Emergency flashers .............................500
EngineAccessory mode..................................197
Brake Override System .................. 165
Compartment....................................... 451
Drive-Start Control............................ 166
Hood ....................................................... 450
How to start the engine ................... 196
Identification number ...................... 554
If the engine will not start............... 538
Ignition switch (engine switch)..... 196
Overheating ........................................ 546
Engine compartment cover ............. 452
Engine coolant....................................... 455 Capacity ................................................ 556
Checking............................................... 455
Preparing and checking before winter ....................................367
Engine immobilizer system ..................76
Engine oil ................................................. 453 Capacity ................................................ 554
Checking................................................453
Preparing and checking before winter ....................................367
Warning message ............................. 522
Engine oil maintenance data ........... 454
Engine switch ...........................................196
Engine switch light ............................... 392
Event data recorder (EDR) ...................10 Flat tire .......................................................524
Floor mats....................................................26
Fluid
Automatic transmission ................. 558
Brake........................................................559
Steering ................................................. 560
Washer ................................................... 463
Fog lights.................................................... 217 Replacing light bulbs ....................... 497
Switch ........................................................ 217
Four-wheel drive system................... 340
Front passenger occupant classification system ............................ 47
Front passenger’s seat belt reminder light ....................................... 513
Front seats ................................................. 128 Adjustment..............................................128
Cleaning................................................. 437
Correct driving posture .................... 28
Driving position memory...................141
Head restraints .....................................146
Seat heaters ..........................................390
Seat position memory .........................141
Front turn signal lights .........................207 Replacing light bulbs ....................... 493
Turn signal lever ................................. 207
Wattage ...................................................561F