2008 Lexus GX470 immobilizer

TABLE OF CONTENTSIndex
2
1-1. Key information ........................... 22Keys ...................................................... 22
1-2. Opening, closing and locking the doors...................................... 24
Wireless remote control .............. 24
Side doors .......................................... 26
Back door ............................................ 31
1-3. Adjustable components (seats, mirrors, steering
wheel, etc.) .................................. 34
Front seats .......................................... 34
Rear seats ........................................... 36
Driving position memory system ............................................... 45
Head restraints................................. 47
Seat belts ............................................ 49
Steering wheel.................................. 57
Inside rear view mirror................. 58
Outside rear view mirrors ........... 59
1-4. Opening and closing the windows and moon roof ........... 61
Power windows................................. 61
Moon roof .......................................... 64
1-5. Refueling ........................................ 67 Opening the fuel tank cap........... 67 1-6. Theft deterrent system............... 70
Engine immobilizer system ......... 70
Alarm.................................................... 72
Theft prevention labels (U.S.A.) ............................................. 74
1-7. Safety information ....................... 75 Correct driving posture ............... 75
SRS airbags ....................................... 77
Front passenger occupant classification system .................... 90
Child restraint systems ................. 95
Installing child restraints ............... 98
2-1. Driving procedures.................... 110 Driving the vehicle ......................... 110
Engine (ignition) switch ............... 118
Automatic transmission................ 121
Turn signal lever............................. 124
Parking brake ................................. 125
2-2. Instrument cluster ..................... 126 Gauges and meters ..................... 126
Indicators and warning lights................................................. 129
Trip information display .............. 132
1Before driving
2When driving

Before driving1
21
1-1. Key information ............... 22Keys ............................................... 22
1-2. Opening, closing and locking the doors ........... 24
Wireless remote control ......... 24
Side doors.................................... 26
Back door ..................................... 31
1-3. Adjustable components (seats, mirrors, steering
wheel, etc.) ..................... 34
Front seats ................................... 34
Rear seats .................................... 36
Driving position memory system ........................................ 45
Head restraints .......................... 47
Seat belts ..................................... 49
Steering wheel ........................... 57
Inside rear view mirror ........... 58
Outside rear view mirrors ...... 59 1-4. Opening and closing the
windows and moon
roof .................................. 61
Power windows ............................ 61
Moon roof ................................... 64
1-5. Refueling .......................... 67 Opening the fuel tank cap ...... 67
1-6. Theft deterrent system ... 70 Engine immobilizer system ........................................ 70
Alarm............................................ 72
Theft prevention labels (U.S.A.)....................................... 74
1-7. Safety information........... 75 Correct driving posture ......... 75
SRS airbags ................................ 77
Front passenger occupant classification system.............. 90
Child restraint systems ........... 95
Installing child restraints......... 98

70
1-6. Theft deterrent system
Engine immobilizer system
■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.
■Certifications for the engine immobilizer system For vehicles sold in the U.S.A.
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation. For vehicles sold in Canada
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
The vehicle’s keys have built-in transponder chips that prevent the engine
from starting if the 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.
The indicator light flashes after
the engine switch has been
turned to the “LOCK” position
to indicate that the system is
operating.
FCC ID: MOZRI-20BTY

71
1-6. Theft deterrent system
1
Before driving
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
■For proper system operation
Do not modify, remove or disable the engine immobilizer system. If any unautho-
rized changes or modifications are made, the proper operation of the system can-
not be guaranteed.

119
2-1. Driving procedures
2
When driving
■Steering lock release
■Starting the engine using the flat keyPut the key case away when the security indicator light goes out. This
means the engine immobilizer system has turned off.
Start the engine within 60 seconds after the security indicator light goes
off.
■Leak detection pump
Several hours after the engine is turned off, you may hear a sound coming from
underneath the luggage compartment for several minutes. This is normal operation
and does not indicate a malfunction. When starting the engine, the engine switch
may seem stuck in the “LOCK” position. To
free it, turn the key while turning the steering
wheel slightly in either direction.
Remove the flat key from its case. Insert the
key into the engine switch.STEP1
Bring the key case close to the engine switch
within 10 seconds as indicated by an arrow.STEP2
STEP3
STEP4

402
5-2. Steps to take in an emergency
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (
→P. 118), consider each of the following points.
■The engine will not start even when 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.
Add fuel to the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( →P. 1 1 8 )
● There may be a malfunction in the engine immobilizer system.
(→ P. 7 0 )
■ 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. 405)
● The battery terminal connections may be loose or corroded.
■ 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. 405)
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.

448
Alphabetical index
If the vehicle battery is discharged .......................................405
If you have a flat tire ...........................391
If you lose your keys......................... 404
If you think something is wrong ....................................................377
If your vehicle becomes stuck...... 410
If your vehicle needs to be towed ................................................... 372
If your vehicle overheats ............... 408
Engine Compartment ....................................... 321
Engine switch.......................................... 118
Hood........................................................ 320
How to start the engine..................... 118
If the engine will not
start ........................................................ 402
Overheating........................................ 408
Engine compartment cover ............. 322
Engine coolant temperature gauge....................................................... 126
Engine coolant
Capacity...................................................416
Checking ............................................... 328
Preparing and checking before winter ...................................... 176
Engine immobilizer system.................. 70
Engine oil Capacity...................................................415
Checking ............................................... 323
Preparing and checking before winter ...................................... 176
Engine oil maintenance data............ 326
Event data recorder ............................ 379 First-aid kit storage belt ..................... 279
Flat key ......................................................... 22
Floor mats .................................................277
Fluid
Brake ....................................................... 330
Power steering ..................................... 331
Washer................................................... 335
Fog lights
Switch ........................................................ 137
Wattage ................................................. 420
Foot light .................................................. 256
Front passenger’s seat belt reminder light .....................................385
Front passenger occupant
classification system............................ 90
Front seats
Adjustment ............................................... 34
Driving position memory ..................45
Front turn signal lights Wattage ................................................. 420
Fuel Capacity .................................................. 414
Fuel gauge .............................................. 126
Gas station information ................. 456
Information ............................................. 421
Refueling .................................................... 67
Fuel door ......................................................67
Fuel filler door ............................................67
Fuses .......................................................... 355F

454
What to do if...
What to do if...
A tire puncturesP. 3 9 1If you have a flat tire
The engine does not start
P. 7 0Engine immobilizer system
P. 4 0 2If the engine will not start
P. 4 0 5If the battery is discharged
The shift lever cannot be
moved outP. 4 0 3If 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. 4 0 8If your vehicle overheats
The key is lostP. 4 0 4If you lose your keys
The battery is dischargedP. 4 0 5If the vehicle has a discharged battery
The doors cannot be lockedP. 2 6Doors
The horn begins to soundP. 7 2Alarm
The vehicle is stuck in mud or
sandP. 4 1 0If the vehicle becomes stuck