2018 Lexus GX460 brake light

5257-2. Steps to take in an emergency
GX460_OM_OM60Q09U_(U)
7
When trouble arises
CAUTION
■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.

5397-2. Steps to take in an emergency
GX460_OM_OM60Q09U_(U)
7
When trouble arises
Once⎯
• When the doors were unlocked with the mechanical key and then
the engine swit ch was pressed,
the electronic key could not be
detected in the vehicle.
• The electronic key could not be detected in the vehicle even after
the engine switch was pressed
two consecutive times.
→ Touch the electronic key to the
engine switch while depressing
the brake pedal.
⎯⎯
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 min-
utes to recharge the battery.
Once⎯
The electronic key has a low battery.
→Replace the electronic key bat-
tery. ( →P. 491)
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)

5577-2. Steps to take in an emergency
GX460_OM_OM60Q09U_(U)
7
When trouble arises
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. 561)
●There may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the follo wing steps can be used as an interim
measure to start the engine if the engine switch is functioning normally.
Set the parking brake.
Put the shift lever in P.
Set the engine switch to the ACCESSORY mode.
Push 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 in spected 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
1
2
3
4

624What to do if... (Troubleshooting)
GX460_OM_OM60Q09U_(U)
●It is locked automatically to prevent theft of the vehicle. ( →P. 191)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( →P. 150)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. ( →P. 191)
●The seat belt reminder light is flashing
Are the driver and the front passe nger wearing the seat belts?
(→ P. 522)
●The parking brake indicator is on
Is the parking brake released? ( →P. 201)
Depending on the situation, other types of warning buzzer may also sound.
(→ P. 520, 528)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. (→ P. 74)
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine. The steering wheel cannot be turned after the engine is stopped
The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and the horn sounds

626Alphabetical index
GX460_OM_OM60Q09U_(U)
Alphabetical index
A/C ................................................ 386, 396Air conditioning filter....................... 489
ABS (Anti-lock Brake System)........ 351 Function ................................................... 351
Warning light ...................................... 520
Active Traction Control .................... 352
Air conditioning filter .......................... 489
Air conditioning system ......... 386, 396 Air conditioning filter....................... 489
Micro dust and pollen filter ............ 391
Airbags ........................................................ 36 Airbag operating conditions ........... 44
Airbag precautions for your child........................................ 39
Airbag warning light ........................ 520
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.............................. 520
Alarm Alarm........................................................... 74
Warning buzzer ................................ 520 Anchor brackets...................................... 59
Antennas (smart access system
with push-button start) ...................... 115
Anti-lock brake system (ABS) ....................................................... 351 Function ....................................................351
Warning light .......................................520
Armrest ..................................................... 427
Assist grip ................................................ 428
Audio input
*
Audio system*
Automatic headlight leveling system ................................... 205
Automatic High Beam ....................... 206
Automatic light control system ...... 202
Automatic transmission....................... 194 If the shift lever cannot be shifted from P .................................... 198
S mode......................................................196
AUX port
*
Auxiliary boxes ....................................... 410
AVS ............................................................. 341
Back door ..................................................105
Back-up lights Replacing light bulbs ...................... 505
Wattage ................................................. 579
Battery ....................................................... 472 Battery checking .................................472
If the vehicle battery is discharged...........................................561
Preparing and checking before winter .....................................377
Warning light .......................................520
Bluetooth
®*
A
B

627Alphabetical index
GX460_OM_OM60Q09U_(U)
Bottle holders ......................................... 409
BrakeFluid........................................................... 577
Parking brake........................................ 201
Warning light ...................................... 520
Brake assist .............................................. 351
Break-in tips............................................. 159
Brightness control Instrument panel light control .....................................................84
BSM (Blind Spot Monitor)................ 357 The Blind Spot Monitor function ................................................362
The Rear Cross Traffic Alert function ............................................... 365
Care ................................................ 446, 449 Aluminum wheels ..............................446
Exterior....................................................446
Interior .....................................................449
Seat belts ............................................... 450
Cargo hooks ............................................ 412
Center differential................................ 342
CD player
*
Chains ........................................................377
Child restraint system............................ 55 Booster seats, definition ....................56
Booster seats, installation..................66
Convertible seats, definition ............56
Convertible seats, installation .............................................. 63 Installing child restraint system
with LATCH system.......................... 61
Installing child restraint system with seat belts...................................... 63
Installing child restraint system with top tether strap..........................67
Infant seats, definition.......................... 56
Infant seats, installation....................... 63
Child safety .................................................54 Airbag precautions.............................. 39
Back door precautions.....................107
Battery precautions .............. 473, 563
Child restraint system......................... 55
Glass hatch precaution ......................112
How your child should wear the seat belt ...........................................32
Installing child restraints .................... 59
Moon roof precautions ....................156
Power window lock switch............ 150
Power window precautions ........... 152
Rear door child-protectors ............. 101
Removed key battery precautions ....................................... 492
Seat belt precautions .......................... 33
Seat heater precautions ................. 399
Child-protectors ..................................... 101
Cleaning Aluminum wheels .............................. 446
Exterior ................................................... 446
Interior ..................................................... 449
Seat belts................................................450
Coat hooks ............................................. 428
Compass ..................................................429
C
*: For vehicles with a navigation system or a multimedia system, refer to the “NAVIGATION SYSTEM OWNER’S MANUAL” or“MULTIMEDIA OWNER’S MANUAL”.

629Alphabetical index
GX460_OM_OM60Q09U_(U)
Emergency flashers .............................. 510
EngineAccessory mode................................. 190
Compartment......................................463
Hood ........................................................462
How to start the engine ................... 189
Identification number ....................... 572
If the engine will not start............... 556
Ignition switch (engine switch)..... 189
Overheating ........................................ 564
Engine compartment cover ............. 464
Engine coolant....................................... 467 Capacity .................................................574
Checking................................................ 467
Preparing and checking before winter .................................... 377
Engine immobilizer system ..................72
Engine oil ................................................. 465 Capacity ................................................. 572
Checking............................................... 465
Preparing and checking before winter .................................... 377
Engine switch .......................................... 189
Engine switch light ............................... 402
Event data recorder (EDR) ...................10 Flat tire .......................................................542
Floor mats....................................................26
Fluid
Automatic transmission .................. 576
Brake........................................................ 577
Steering .................................................. 578
Washer ................................................... 475
Fog lights......................................................211 Switch .....................................................211
Four-wheel drive system....................342
Front passenger occupant classification system ........................... 48
Front passenger’s seat belt reminder light ......................................522
Front seats ................................................. 122 Adjustment.............................................. 122
Cleaning................................................. 449
Correct driving posture .................... 28
Driving position memory.................135
Head restraints .....................................140
Seat heaters ......................................... 400
Seat position memory .......................135
Front turn signal lights ........................ 200 Replacing light bulbs .......................502
Turn signal lever .................................200
Wattage ................................................. 579F

632Alphabetical index
GX460_OM_OM60Q09U_(U)
Meter ............................................................ 83Indicators................................................... 78
Instrument panel light control .........84
Meters.........................................................83
Multi-information display ..................86
Warning lights ........................................ 78
Micro dust and pollen filter ................391
Mirrors Inside rear view mirror ..................... 145
Outside rear view mirror defoggers ............................................ 391
Outside rear view mirrors ...............147
Vanity mirrors ........................................421
Moon roof................................................. 153 Jam protection function ................... 154
Operation ............................................... 153
MP3 disc
*
Multi-information display ..................... 86 Switching the display........................... 87
Trip information ..................................... 87
Multi-terrain Monitor ...........................313
Multi-terrain Select..............................308
Navigation system
*
Odometer .................................................. 83
Off-road precautions ......................... 380
Oil Engine oil ............................................... 572
Front differential oil ........................... 575
Rear differential oil ............................ 575
Transfer................................................... 576
Opener Back door............................................... 106
Fuel filler door...................................... 223
Hood........................................................ 462
Outside rear view mirrors .................. 147 Adjusting and folding ........................ 147
Blind Spot Monitor ........................... 357
Outside rear view mirror defoggers.............................................391
Outside temperature display ............. 90
Overheating, Engine .......................... 564
Parking assist sensors (intuitive parking assist)...................245
Parking assist monitor .........................264
Parking brake .......................................... 201 Operation................................................201
Parking brake engaged warning buzzer ...............................530
Personal lights ....................................... 402 Switch ......................................................403
Wattage ................................................. 579
N
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P