2010 Lexus GX460 immobilizer

TABLE OF CONTENTSIndex
2
GX460_U.S.A. (OM60E69U)
1-1. Key informationKeys ...................................................... 26
1-2. Opening, closing and locking 
the doors and trunk
Smart access system with  push-button start .......................... 29
Wireless remote control .............. 48
Side doors ........................................... 51
Back door ........................................... 54
Glass hatch ........................................ 59
1-3. Adjustable components (seats, 
mirrors, steering wheel, etc.)
Front seats .......................................... 64
Rear seats ........................................... 68
Driving position memory 
(driver’s seat) ................................. 79
Head restraints................................ 83
Seat belts ............................................ 86
Steering wheel.................................. 94
Inside rear view mirror .................. 96
Outside rear view mirrors ........... 97 1-4. Opening and closing the windows

and moon roof
Power windows............................... 101
Moon roof ........................................ 104
1-5. Refueling Opening the fuel tank cap......... 109
1-6. Theft deterrent system Engine immobilizer system ......... 114
Alarm.................................................... 116
1-7. Safety information Correct driving posture ............... 119
SRS airbags ....................................... 121
Front passenger occupant 
classification system .................. 140
Child restraint sy stems ............... 147
Installing child restraints ............. 152
1Before driving

Before driving1
25
GX460_U.S.A. (OM60E69U)
1-1. Key informationKeys ............................................... 26
1-2. Opening, closing and 
locking the doors and trunk
Smart access system with 
push-button start .................... 29
Wireless remote control ........ 48
Side doors..................................... 51
Back door .................................... 54
Glass hatch ................................. 59
1-3. Adjustable components 
(seats, mirrors, 
steering wheel, etc.)
Front seats ................................... 64
Rear seats .................................... 68
Driving position memory 
(driver’s seat) ........................... 79
Head restraints ......................... 83
Seat belts ..................................... 86
Steering wheel ........................... 94
Inside rear view mirror ............ 96
Outside rear view mirrors ...... 97 1-4. Opening and closing

the windows and moon roof
Power windows ......................... 101
Moon roof ................................. 104
1-5. Refueling Opening the fuel tank 
cap ............................................ 109
1-6. Theft deterrent system Engine immobilizer 
system....................................... 114
Alarm............................................ 116
1-7. Safety information Correct driving posture ........ 119
SRS airbags ............................... 121
Front passenger occupant 
classification system............ 140
Child restraint systems .......... 147
Installing child restraints....... 152

114
GX460_U.S.A. (OM60E69U)
1-6. Theft deterrent system
Engine immobilizer system
The vehicle’s keys have built-in transponder chips that prevent the engine
from starting if a key has not been previously registered in the vehicle’s on-
board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
Vehicles without a navigation system
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned off to
indicate that the system is oper-
ating.
Vehicles with a navigation system The indicator light flashes after
the “ENGINE START STOP”
switch has been turned off to
indicate that the system is oper-
ating.

115
1-6. Theft deterrent system
1
Before driving
GX460_U.S.A. (OM60E69U)
■System maintenance
The vehicle has a maintenance-free type of engine immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object.
●If the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle.
CAUTION
■Certifications for the engine immobilizer system
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation
of the system cannot be guaranteed.

183
2-1. Driving procedures
2
When driving
GX460_U.S.A. (OM60E69U)
■Electronic key battery depletion
P. 4 5
■Conditions affecting operation
P. 4 0
■Notes for the entry function
P. 4 2
■If the engine does not start
The engine immobilizer system may not have been deactivated. ( P. 114)
■Steering lock
After turning the “ENGINE START STOP” switch off and opening and closing the
doors, the steering wheel will be locked due to the steering lock function. Operat-
ing the “ENGINE START STOP” switch again automatically cancels the steering
lock.
■When the steering lock cannot be released
The green indicator light on the “ENGINE
START STOP” switch will flash and a mes-
sage will be shown on the multi-information
display. Press the “ENGINE START STOP”
switch again while turning the steering wheel
left and right.

734
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (
P. 179), consider each of the following points:
■The engine will not start even wh en the starter motor operates
normally
One of the following may be the cause of the problem:
● There may not be sufficient fuel in the vehicle’s tank. 
Refuel the vehicle.
● The engine may be flooded. 
Try to restart the engine once more following correct starting
procedures. ( P. 1 7 9 )
● There may be a malfunction in the engine immobilizer system. 
( P. 1 1 4 )
■ The starter motor turns over slowly, interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume
One of the following may be the cause of the problem:
●The battery may be discharged. ( P. 74 1 )
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over
The engine starting system may be malfunctioning due to an electri-
cal problem such as an open circuit or a blown fuse. However, an
interim measure is available to start the engine. ( P. 7 3 8 )

813
Alphabetical index
GX460_U.S.A. (OM60E69U)
EngineAccessory mode ................................. 179
Compartment .................................... 608
Engine switch ........................................ 179
Hood ....................................................... 607
How to start the engine.................... 179
Identification number......................... 751
If the engine will not start ................734
Ignition switch........................................ 179
Overheating..........................................744
Engine compartment cover............. 609
Engine coolant Capacity................................................. 755
Checking .................................................615
Preparing and checking 
before winter ...................................... 361
Engine coolant temperature 
gauge ....................................................... 195
Engine immobilizer system ..................114
Engine oil Capacity................................................. 753
Checking .................................................610
Preparing and checking 
before winter ...................................... 361
Engine oil maintenance data ............. 612
Engine switch ........................................... 179
Engine switch light .................................. 511
Event data recorder............................ 683
Floor mats................................................ 556
Fluid Brake .........................................................618
Power steering ................................... 620
Washer ................................................... 626 Fog lights
Replacing light bulbs ....................... 664
Switch....................................................... 233
Wattage ....................................................761
Footwell light .............................................511
Four-wheel drive system .....................317
Front passenger occupant 
classification system .......................... 140
Front passenger’s seat belt 
reminder light......................................690
Front seats Adjustment ............................................... 64
Driving position memory .................. 79
Front side marker light Replacing light bulbs ....................... 665
Wattage ....................................................761
Front turn signal lights Replacing light bulbs ....................... 666
Switch.........................................................192
Wattage ....................................................761
Fuel Capacity ................................................. 752
Fuel gauge.............................................. 195
Fuel pump shut off system............ 682
Gas station information ..................824
Information ............................................ 762
Refueling.................................................. 109
Fuel door ................................................... 109
Fuel filler door ......................................... 109
Fuel pump shut off system .................682
Fuses .......................................................... 645
F

818
Alphabetical index
GX460_U.S.A. (OM60E69U)
Fog light switch ................................... 233
Hazard light Switch .......................... 674
Heated steering wheel switch.....549
Height control off switch................. 310
Ignition switch........................................ 179
Light switches ...................................... 220
Power door lock switch ...................... 51
Power window switch ........................ 101
“RSCA OFF” switch.......................... 138
Rear window defogger switch ................................................... 404
Transmission shift switch................. 189
Window lock switch ........................... 101
Wipers and washer switch ........... 235
Tachometer .............................................. 195
Tail lights Replacing light bulbs........................ 670
Switch ...................................................... 220
Talk switch
*............................................482
Telephones switch
*.............................482
Theft deterrent system Alarm .......................................................... 116
Engine immobilizer system ..............114
Tire inflation pressure ......................... 634
Tire information Glossary..................................................772
Size ........................................................... 768
Tire identification number ............. 767
Uniform Tire Quality Grading.... 770
Tires Chains .......................................................361
Checking ............................................... 627
If you have a flat tire .......................... 720
Inflation pressure................................ 760
Information............................................ 765 Pressure warning system ............... 627
Replacing ...............................................720
Rotating tires......................................... 627
Size ........................................................... 760
Snow tires................................................ 361
Spare tire ................................................720
Tire pressure warning

system................................................... 627
Tools........................................................... 720
Total load capacity ............................... 359
Towing Dinghy towing ....................................380
Emergency towing ........................... 675
Trailer towing ...................................... 365
TRAC ..........................................................331
Traction control.......................................331
Trailer towing ......................................... 365
Transmission shift switches................ 189
Trip information display ....................... 212
Trip meter ................................................. 195
Turn signal lights Replacing light bulbs ........... 666, 667
Switch ........................................................ 192
Wattage ................................................... 761
Vanity lights Vanity lights.......................................... 532
Wattage ................................................... 761
Vanity mirrors ........................................... 532
Vehicle identification number...........751
Vehicle load limits ................................ 359
Ventilators ................................................ 551
VSC (Vehicle Stability Control) ....330
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