2019 Lexus GX460 brake light

5237-2. Steps to take in an emergency
GX460_OM_OM60Q84U_(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.

5377-2. Steps to take in an emergency
GX460_OM_OM60Q84U_(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. 489)
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)

5557-2. Steps to take in an emergency
GX460_OM_OM60Q84U_(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. 559)
●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

622What to do if... (Troubleshooting)
GX460_OM_OM60Q84U_(U)
●It is locked automatically to prevent theft of the vehicle. ( P. 195)
●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. 154)
●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. 195)
●The seat belt reminder light is flashing
Are the driver and the front passe nger wearing the seat belts?
( P. 520)
●The parking brake indicator is on
Is the parking brake released? ( P. 205)
Depending on the situation, other types of warning buzzer may also sound.
( P. 518, 526)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 79)
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

624Alphabetical index
GX460_OM_OM60Q84U_(U)
Alphabetical index
A/C ................................................ 390, 400Air conditioning filter........................487
ABS (Anti-lock Brake System)....... 355 Function ................................................. 355
Warning light ........................................ 518
Active Traction Control .................... 356
Air conditioning filter .......................... 487
Air conditioning system ......... 390, 400 Air conditioning filter........................487
Micro dust and pollen filter .......... 395
Airbags ........................................................ 36 Airbag operating conditions ........... 44
Airbag precautions for your child........................................ 39
Airbag warning light .......................... 518
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................................ 518
Alarm Alarm........................................................... 79
Warning buzzer .................................. 518 Anchor brackets...................................... 59
Antennas (smart access system
with push-button start) ...................... 119
Anti-lock brake system (ABS) ..................................................... 355 Function ..................................................355
Warning light ........................................ 518
Armrest ...................................................... 431
Assist grip .................................................432
Audio input
*
Audio system*
Automatic headlight leveling system ................................... 209
Automatic High Beam ......................... 210
Automatic light control system ...... 206
Automatic transmission.......................198 If the shift lever cannot be shifted from P ................................... 202
S mode....................................................200
AUX port
*
Auxiliary boxes ....................................... 414
AVS ........................................................... 345
Back door ..................................................109
Back-up lights Replacing light bulbs .......................503
Wattage ................................................. 577
Battery .......................................................470 Battery checking ................................ 470
If the vehicle battery is discharged.........................................559
Preparing and checking before winter ..................................... 381
Warning light ........................................ 518
Bluetooth
®*
A
B

625Alphabetical index
GX460_OM_OM60Q84U_(U)
Bottle holders ...........................................413
BrakeFluid...........................................................575
Parking brake...................................... 205
Warning light ........................................ 518
Brake assist ............................................. 355
Break-in tips..............................................163
Brightness control Instrument panel light control .................................................... 88
BSM (Blind Spot Monitor)..................361 The Blind Spot Monitor function ............................................... 366
The Rear Cross Traffic Alert function ............................................... 369
Care ................................................ 444, 447 Aluminum wheels .............................. 444
Exterior.................................................... 444
Interior ..................................................... 447
Seat belts ............................................... 448
Cargo hooks ............................................416
Center differential................................ 346
CD player
*
Chains ........................................................ 381
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........................ 111
Battery precautions ................. 471, 561
Child restraint system......................... 55
Glass hatch precaution ..................... 116
How your child should wear the seat belt ...........................................32
Installing child restraints .................... 59
Moon roof precautions ................... 160
Power window lock switch.............154
Power window precautions ...........156
Rear door child-protectors ........... 105
Removed key battery precautions .......................................490
Seat belt precautions .......................... 33
Seat heater precautions .................403
Child-protectors ....................................105
Cleaning Aluminum wheels .............................. 444
Exterior ................................................... 444
Interior ..................................................... 447
Seat belts................................................ 448
Coat hooks ..............................................432
Compass ................................................. 433
C
*: For vehicles with a navigation system or a multimedia system, refer to the “NAVIGATION SYSTEM OWNER’S MANUAL” or“MULTIMEDIA OWNER’S MANUAL”.

627Alphabetical index
GX460_OM_OM60Q84U_(U)
Emergency flashers .............................508
EngineAccessory mode................................. 194
Compartment....................................... 461
Hood ....................................................... 460
How to start the engine ................... 193
Identification number ...................... 570
If the engine will not start............... 554
Ignition switch (engine switch)..... 193
Overheating .........................................562
Engine compartment cover ............. 462
Engine coolant....................................... 465 Capacity ................................................. 572
Checking............................................... 465
Preparing and checking before winter ..................................... 381
Engine immobilizer system .................. 77
Engine oil ................................................. 463 Capacity ................................................ 570
Checking................................................463
Preparing and checking before winter ..................................... 381
Engine switch ...........................................193
Engine switch light ............................... 406
Event data recorder (EDR) ...................10 Flat tire ...................................................... 540
Floor mats....................................................26
Fluid
Automatic transmission .................. 574
Brake........................................................ 575
Steering .................................................. 576
Washer ................................................... 473
Fog lights.................................................... 215 Switch ........................................................ 215
Four-wheel drive system................... 346
Front passenger occupant classification system ........................... 48
Front passenger’s seat belt reminder light ..................................... 520
Front seats ................................................. 126 Adjustment.............................................. 126
Cleaning................................................. 447
Correct driving posture .................... 28
Driving position memory.................139
Head restraints ..................................... 144
Seat heaters .......................................... 404
Seat position memory .......................139
Front turn signal lights ........................ 204 Replacing light bulbs ...................... 500
Turn signal lever ................................. 204
Wattage ................................................. 577F

630Alphabetical index
GX460_OM_OM60Q84U_(U)
Meter ............................................................ 87Indicators................................................... 82
Instrument panel light control ........ 88
Meters......................................................... 87
Multi-information display ..................90
Warning lights ........................................ 82
Micro dust and pollen filter .............. 395
Mirrors Inside rear view mirror ..................... 149
Outside rear view mirror defoggers .......................................... 395
Outside rear view mirrors ................ 151
Vanity mirrors ......................................425
Moon roof.................................................. 157 Jam protection function ................... 158
Operation ............................................... 157
MP3 disc
*
Multi-information display ..................... 90 Switching the display.............................91
Trip information .......................................91
Multi-terrain Monitor ........................... 317
Multi-terrain Select................................312
Navigation system
*
Odometer ...................................................87
Off-road precautions ......................... 384
Oil Engine oil ............................................... 570
Front differential oil ........................... 573
Rear differential oil ............................ 573
Transfer................................................... 574
Opener Back door................................................. 110
Fuel filler door.......................................227
Hood........................................................460
Outside rear view mirrors ................... 151 Adjusting and folding ......................... 151
Blind Spot Monitor .............................361
Outside rear view mirror defoggers...........................................395
Outside temperature display ..............94
Overheating, Engine .......................... 562
Parking assist sensors (intuitive parking assist)...................249
Parking assist monitor ........................ 268
Parking brake ........................................ 205 Operation..............................................205
Parking brake engaged warning buzzer ...............................528
Personal lights ....................................... 406 Switch ...................................................... 407
Wattage ................................................. 577
N
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