2012 Lexus GX460 horn

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5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
Emergency start function
When the engine does not start, the following steps can be used as an
interim measure to start the engine if the “ENGINE START STOP” switch
is functioning normally:Set the parking brake.
Shift the shift lever to P.
Turn the “ENGINE START STOP” switch to ACCESSORY
mode.
Press and hold the “ENGINE START STOP” 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 malfunctioning. Have the vehicle inspected by your Lexus dealer.
■ The starter motor does not turn ov er, interior lights and headlights
do not turn on, or the horn does not sound
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. 74 1 )
● 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.
STEP1
STEP2
STEP3
STEP4

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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
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*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

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GX460_U.S.A. (OM60J00U)
What to do if...
What to do if...
A tire puncturesP. 7 2 1If you have a flat tire
The engine does not start
P. 1 1 5Engine immobilizer system
P. 7 3 5If the engine will not start
P. 74 1If the vehicle battery is discharged
The shift lever cannot be
moved outP. 7 3 7If the shift lever cannot be shifted
from “P”
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 74 4If your vehicle overheats
The key is lostP. 7 3 8If you lose your keys
The battery is dischargedP. 74 1If the vehicle battery is discharged
The doors cannot be lockedP. 5 0Side doors
P. 5 3Back door
The horn begins to soundP. 1 1 7Alarm
The vehicle is stuck in mud or
sandP. 74 7If the vehicle becomes stuck