2012 Lexus GX460 ignition

5
When trouble arises
693
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
*1: Open door warning buzzer:
The open door warning buzzer sounds to alert one or more of the doors is not
fully closed (with the vehicle having reached a speed of 3 mph [5 km/h]).
( → P. 7 0 4 )
*2: Driver’s and front passenger’s seat belt reminder buzzer:
The driver’s and front passenger’s seat belts reminder buzzer sounds to alert
the driver and front passenger that his/her seat belt is not fastened. Once the
“ENGINE START STOP” switch is turned to IGNITION ON mode, the buzzer
sounds for 4 to 8 seconds. If the vehicle reaches a speed of 12 mph (20 km/h),
the buzzer sounds intermittently for 10 seconds. Then, if the seat belt is still
unfastened, the buzzer will sound in a different tone for 20 more seconds.
Warning lightWarning light/DetailsCorrection procedure
Master warning light
A buzzer sounds and the
warning light comes on and
flashes to indicate that the
master warning system has
detected a malfunction.
→ P. 7 0 0
Tire pressure warning light
When the light comes on:
Low tire inflation pressure.Adjust the tire inflation pres-
sure.
When the light comes on after
blinking for 1 minute:
Malfunction in the tire pres-
sure warning system.
Have the system checked by
your Lexus dealer.

757
6-1. Specifications
6
Vehicle specifications
GX460_U.S.A. (OM60J00U)
Cooling system
Ignition system
Capacity
(reference)
With rear
heater16.3 qt. (15.4 L, 13.6 Imp.qt.)
Without rear
heater14.5 qt. (13.7 L, 12.1 Imp.qt.)
Coolant type
Use either of the following:• “Toyota Super Long Life Coolant”
• A similar high-quality ethylene glycol-
based non-silicate, non-amine, non-nitrite,
and non-borate coolant with long-life
hybrid organic acid technology
Do not use plain water alone.
Spark plug
MakeDENSO SK20HR11
Gap0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

823
Alphabetical index
GX460_U.S.A. (OM60J00U)
Electronic keyIf the electronic key does not
operate properly ............................ 739
Emergency, in case of
If the electronic key does not operate properly ............................ 739
If the engine will not start ............... 735
If the shift lever cannot be shifted from P.................................... 737
If the vehicle has discharged
battery.................................................... 741
If the warning buzzer sounds..... 688
If the warning light turns on ......... 688
If the warning message is
displayed ............................................ 700
If you have a flat tire .......................... 721
If you lose your keys ........................ 738
If you think something is
wrong...................................................683
If your vehicle becomes stuck .....747
If your vehicle has to be stopped in an emergency ......... 749
If your vehicle needs to be towed ....................................................677
If your vehicle overheats.................744
Emergency flashers
Switch ...................................................... 676 Engine
Accessory mode..................................179
Compartment..................................... 609
Engine switch .........................................179
Hood ....................................................... 608
How to start the engine ....................179
Identification number .......................753
If the engine will not start................735
Ignition switch ........................................179
Overheating ......................................... 744
Engine compartment cover .............. 610
Engine coolant Capacity ................................................. 757
Checking ................................................ 616
Preparing and checking before winter ................................... 366
Engine coolant temperature gauge....................................................... 195
Engine immobilizer system..................115
Engine oil Capacity .................................................755
Checking .................................................. 611
Preparing and checking before winter ................................... 366
Engine oil maintenance data............. 613
Engine switch ...........................................179
Engine switch light................................. 519
Event data recorder ........................... 685E
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

825
Alphabetical index
GX460_U.S.A. (OM60J00U)
Hill-start assist control ....................... 336
Hood ......................................................... 608
HooksCargo ......................................................558
Cargo hooks .......................................559
Coat .........................................................555
Horn............................................................. 194
I/M test ..................................................... 602
Identification Engine ..................................................... 753
Vehicle.................................................... 753
Ignition switch .......................................... 179
Ignition switch light Ignition switch light .............................519
Illuminated entry system ....................522
Indicator lights .........................................198
Initialization
Items to initialize .................................802
Inside door handle light ....................... 519
Inside rear view mirror.......................... 95
Instrument cluster light control ........ 196
Interior lights Interior lights ..........................................519
Switch ........................................................ 521
Wattage ................................................. 763
Intuitive parking assist .........................266 Jack
Vehicle-equipped jack ..................... 721
Jack handle................................................721
Keyless entry ................................................. 47
Keys
Electronic key ......................................... 26
Engine switch .......................................... 29
If you lose your keys .........................738
If the electronic key does not operate properly ............................ 739
Key number plate ................................. 26
Keyless entry ........................................... 47
Keys ............................................................. 26
Mechanical key ...................................... 26
Wireless remote control key .......... 47
Kinetic Dynamic Suspension System (KDSS) ................................... 336
Lane Departure Alert ......................... 275
LDA ............................................................ 275
License plate lights Replacing light bulbs ........................ 672
Light bulbs
Replacing ...............................................662
Wattage.................................................. 763
I
J
K
L
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

829
Alphabetical index
GX460_U.S.A. (OM60J00U)
Switch“ENGINE START STOP”
switch ..................................................... 179
Engine switch ........................................ 179
“2nd STRT” switch ............................. 188
Center differential lock/unlock
switch ................................................... 323
“DAC” switch ...................................... 332
Emergency flasher Switch ............ 676
Fog light switch................................... 233
Hazard light Switch .......................... 676
Heated steering wheel switch .... 549
Height control off switch .................316
Ignition switch........................................ 179
Light switches........................................ 219
Power door lock switch.................... 50
Power window switch........................ 101
“RSCA OFF” switch .......................... 137
Rear window defogger switch
*.................................................... 411
Transmission shift switch .................189
Window lock switch ........................... 101
Wipers and washer switch........... 236
Tachometer .............................................. 195
Tail lights Replacing light bulbs ........................672
Switch ........................................................ 219
Talk switch
*............................................ 490
Telephones switch
*............................ 490
Theft deterrent system Alarm ........................................................... 117
Engine immobilizer system ..............115 Tire inflation pressure .........................635
Tire information
Glossary ................................................. 774
Size............................................................770
Tire identification number..............769
Uniform Tire Quality Grading .... 772
Tires Chains .................................................... 366
Checking .............................................. 628
If you have a flat tire ............................ 721
Inflation pressure................................ 762
Information ........................................... 768
Pressure warning system.............. 628
Replacing ................................................. 721
Rotating tires ....................................... 628
Size............................................................ 762
Snow tires ............................................. 366
Spare tire .................................................. 721
Tire pressure warning system ................................................. 628
Tools .............................................................721
Total load capacity ............................... 364
Towing Dinghy towing .................................... 389
Emergency towing............................ 677
Trailer towing .......................................370
T
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.