2021 Lexus GX460 emergency brake

5407-2. Steps to take in an emergency
GX460_OM_OM60T19U_(U)
WARNING
■Replacing a flat tire
●Observe the following precautions.
Failure to do so may result in serious injury:
• Lower the spare tire completely to the ground before removing it from under thevehicle.
• Do not try to remove the wheel ornament by hand. Take due care in handling the ornament to avoid unexpected personal injury.
• Do not touch the disc wheels or the area around the brakes immediately after the vehicle has been driven.
After the vehicle has been driven the disc wheels and the area around the brakes
will be extremely hot. Touching these areas with hands, feet or other body parts
while changing a tire, etc. may result in burns.
●Failure to follow these precautions could cau se the nuts to loosen and the wheel may
fall off, which could lead to an accident causing death or serious injury.
• Never use oil or grease on the wheel bolts or wheel nuts. Oil and grease may cause the wheel nuts to be excessively tightened, leading to
bolt or disc wheel damage. In addition, the oil or grease can cause the wheel nuts
to loosen and the wheel may fall off, causing a serious accident. Remove any oil or
grease from the wheel bolts or wheel nuts.
• Have the wheel nuts tightened with a torque wrench to 76 ft•lbf (103 N•m, 10.5 kgf•m) as soon as possible after changing wheels.
• Do not attach a heavily damaged wheel or nament, as it may fly off the wheel while
the vehicle is moving.
• When installing a tire, only use wheel nuts that have been specifically designed for
that wheel.
• If there are any cracks or deformations in the bolt screws, nut threads or bolt holes
of the wheel, have the vehicle inspected by your Lexus dealer.

5467-2. Steps to take in an emergency
GX460_OM_OM60T19U_(U)
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. 550)
●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.
Shift the shift lever to P.
Turn the engine switch to the ACCESSORY mode.
Press 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
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5487-2. Steps to take in an emergency
GX460_OM_OM60T19U_(U)
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of the
electronic key to the engine switch.
When the electronic key is detected, a
buzzer sounds and the engine switch
will turn to IGNITION ON mode.
When the smart access system with
push-button start is deactivated in cus-
tomization setting, the engine switch will
turn to ACCESSORY mode.
Firmly depress the brake pedal and check that is shown on the multi-
information display.
Press the engine switch shortly and firmly.
In the event that the engine still cannot be started, contact your Lexus dealer.
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when stopping
the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the electronic
key battery be replaced immediately when the battery is depleted. ( P. 492)
■Changing engine switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the engine
switch.
The engine does not start and modes will be changed each time the switch is pressed.
(  P. 201)
■When the electronic key does not work properly
●Make sure that the smart access system wi th push-button start has not been deacti-
vated in the customization setting. If it is off, turn the function on.
(Customizable features:  P. 584)
●Check if battery-saving mode is set. If it is set, cancel the function. (P. 127)
Starting the engine
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GX460_OM_OM60T19U_(U)7-2. Steps to take in an emergency
If the vehicle becomes stuck
Stop the engine. Set the parking br
ake and shift the shift lever to P.
Remove the mud, snow or sand from around the stuck tire.
Place wood, stones or some other mate rial under the tires to help provide
traction.
Restart the engine.
Lock the center differential. ( P. 345)
Shift the shift lever to the D or R positi on and release the parking brake. Then,
while exercising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
Turn off TRAC/Active TRAC/VSC/Trailer Sway Control if these functions are hamper-
ing your attempts to free the vehicle. ( P. 357)
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt, or snow:
Press to turn off TRAC/Active TRAC/VSC/
Trailer Sway Control.
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617Alphabetical index
GX460_OM_OM60T19U_(U)
Emergency flashers .............................508
EngineAccessory mode................................. 201
Brake Override System .................. 169
Compartment..................................... 459
Drive-Start Control............................ 170
Hood ....................................................... 458
How to start the engine ................. 200
Identification number .......................562
If the engine will not start............... 545
Ignition switch (engine switch)... 200
Overheating ........................................ 553
Engine compartment cover ............. 460
Engine coolant....................................... 463 Capacity ................................................ 564
Checking................................................463
Preparing and checking before winter .................................... 374
Engine immobilizer system .................. 77
Engine oil ...................................................461 Capacity .................................................562
Checking................................................. 461
Preparing and checking before winter .................................... 374
Warning message .............................529
Engine oil maintenance data ........... 462
Engine switch .........................................200
Engine switch light ...............................400
Event data recorder (EDR) ...................10 Flat tire ........................................................ 531
Floor mats....................................................26
Fluid
Automatic transmission ..................566
Brake........................................................ 567
Steering ................................................. 568
Washer ..................................................... 471
Fog lights.................................................... 221 Replacing light bulbs ...................... 505
Switch ........................................................ 221
Four-wheel drive system....................344
Front passenger occupant classification system ............................ 47
Front passenger’s seat belt reminder light ..................................... 520
Front seats ................................................. 132 Adjustment.............................................. 132
Cleaning................................................. 445
Correct driving posture .................... 28
Driving position memory.................145
Head restraints .................................... 150
Seat heaters ..........................................398
Seat position memory .......................145
Front turn signal lights ............................211 Replacing light bulbs ........................ 501
Turn signal lever .....................................211
Wattage .................................................569F

624Alphabetical index
GX460_OM_OM60T19U_(U)
Size ........................................................... 568
Snow tires .............................................. 374
Spare tire ................................................. 531
Tire pressure warning system .................................................. 473
Tools........................................................... 532
Towing Dinghy towing ...................................... 199
Emergency towing............................. 512
Towing hooks ....................................... 513
Trailer Sway Control ....................... 356
Trailer towing .......................................... 181
Trailer Sway Control........................... 356
TRAC (Traction Control) ................. 355
Transmission Automatic transmission ................. 206
AVS switch ...........................................343
If the shift lever cannot be shifted from P .................................. 209
Trip meters ................................................. 90
Turn signal lights ...................................... 211 Replacing light bulbs..............................501, 502, 505
Turn signal lever .................................... 211
Wattage ................................................. 569
USB port
*
Vanity lights Vanity lights ........................................... 419
Wattage ................................................. 569
Vanity mirrors ..........................................419
Vehicle identification number ...........561
VSC (Vehicle Stability Control) .... 355 Warning buzzers ...................................518
Brake system ........................................ 518
Downshifting ........................................ 209
Intuitive parking assist.......................273
LDA (Lane Departure Alert).......250
Open back door....................................114
Open door ...............................................114
Pre-collision warning....................... 239
Radar cruise control ........................ 265
Seat belt remainder ..........................520
Warning lights .........................................518 ABS ............................................................519
Brake Override System ................... 521
Brake system ........................................ 518
Charging system ................................ 518
Drive-Start Cont rol ............................ 521
High coolant temperature ............. 518
KDSS..........................................................519
Low engine oil pressure ................. 518
Low fuel level .......................................520
Malfunction indicator lamp............ 518
Open door ...........................................520
Parking brake indicator ....................519
PCS ............................................................519
Seat belt reminder light ..................520
Slip indicator ..........................................519
SRS............................................................. 518
Tire pressure warning light ...........520
Warning message.................................527
Warning reflector holder.................... 410
Washer ......................................................222 Checking ................................................. 471
Preparing and checking before winter .................................... 374
Switch .......................................................222
Washing and waxing ...........................442
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