2010 Lexus GS350 immobilizer

TABLE OF CONTENTSIndex
2
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
For your information ....................... 18
Symbols used throughout this 
manual ............................................... 21
1-1. Key information
Keys ...................................................... 24
1-2. Opening, closing and locking 
the doors and trunk
Smart access system with 
push-button start .......................... 29
Wireless remote control ............... 41
Doors.................................................... 43
Trunk..................................................... 48
1-3. Adjustable components 
(seats, mirrors, steering wheel)
Front seats .......................................... 53
Driving position memory 
system ............................................... 55
Head restraints................................. 60
Seat belts ............................................ 63
Steering wheel.................................. 70
Inside rear view mirror .................... 71
Outside rear view mirrors ........... 731-4. Opening and closing the windows 
and moon roof
Power windows................................ 75
Moon roof .......................................... 78
1-5. Refueling
Opening the fuel tank cap........... 82
1-6. Theft deterrent system
Immobilizer system ....................... 85
Alarm.................................................... 87
Theft prevention labels 
(U.S.A.) ............................................. 90
1-7. Safety information
Correct driving posture ................ 91
SRS airbags ....................................... 93
Front passenger occupant 
classification system .................. 105
Child restraint systems ................ 110
Installing child restraints ............... 114
1Before driving

Before driving1
23
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
1-1. Key information
Keys ............................................... 24
1-2. Opening, closing and locking 
the doors and trunk
Smart access system with 
push-button start .................... 29
Wireless remote control .......... 41
Doors ............................................ 43
Trunk ............................................ 48
1-3. Adjustable components 
(seats, mirrors, steering 
wheel)
Front seats ................................... 53
Driving position memory 
system ........................................ 55
Head restraints .......................... 60
Seat belts ..................................... 63
Steering wheel ........................... 70
Inside rear view mirror ............. 71
Outside rear view mirrors ...... 731-4. Opening and closing the 
windows and moon roof
Power windows .......................... 75
Moon roof ................................... 78
1-5. Refueling
Opening the fuel tank cap ..... 82
1-6. Theft deterrent system
Immobilizer system .................. 85
Alarm............................................ 87
Theft prevention labels 
(U.S.A.)...................................... 90
1-7. Safety information
Correct driving posture .......... 91
SRS airbags ................................ 93
Front passenger occupant 
classification system............ 105
Child restraint systems .......... 110
Installing child restraints........ 114

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1-2. Opening, closing and locking the doors and trunk
1
Before driving
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have
been locked/unlocked. (Locked: Once; Unlocked: Twice)
■Conditions affecting operation
The smart access system with push-button start uses weak radio waves. In the fol-
lowing situations, the communication between the electronic key and the vehicle
may be affected, preventing the smart access system with push-button start, wire-
less remote control and immobilizer system from operating properly: 
(Way of coping: P. 5 7 1 )
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas station, radio station, large display,
airport or other facility that generates strong radio waves or electrical noise
●When carrying a portable radio, cellular phone, cordless phone or other wire-
less communication devices
●When the electronic key is in contact with, or is covered by the following metal-
lic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When multiple electronic keys are in the vicinity
●When other wireless keys (that emit radio waves) are being used nearby
●When carrying or using the electronic key together with the following devices
that emit radio waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or metallic objects are attached to the rear
window

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1
Before driving
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
1-6. Theft deterrent system
Immobilizer system
■System maintenance
The vehicle has a maintenance-free type 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.
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 START STOP”
switch has been turned OFF to
indicate that the system is oper-
ating.
The indicator light stops flashing
after the “ENGINE START
STOP” switch has been turned
to ACCESSORY or IGNITION
ON mode to indicate that the
system has been canceled.

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1-6. Theft deterrent system
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Certifications for the 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.
CAUTION
■Certifications for the 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 modified or removed, the proper operation
of the system cannot be guaranteed.
FCC ID: NI4TMIMB-1

137
2-1. Driving procedures
2
When driving
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■If the engine does not start
The immobilizer system may not have been deactivated. (P. 8 5 )
■When the steering lock cannot be released
■When the “ENGINE START STOP” switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Lexus
dealer immediately.
■Auto power OFF function
If the vehicle is left in ACCESSORY or IGNITION ON mode (the engine is not
running) for more than an hour with the shift lever in P, the “ENGINE START STOP”
switch will automatically turn off. However, this function cannot entirely prevent bat-
tery discharge. Do not leave the vehicle with the “ENGINE START STOP” switch in
ACCESSORY or IGNITION ON mode for long periods of time when the engine
is not running.
■Electronic key battery depletion
P. 3 5
■When the electronic key battery is discharged
P. 4 8 2
■Conditions affecting operation
P. 3 3
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.

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5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (P. 135), consider each of the following points.
■The engine will not start even if you are carrying the correct elec-
tronic key
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. 135)
●There may be a malfunction in the immobilizer system. (P. 8 5 )
■The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume
One of the following may be the cause of the problem.
●The 12 volt battery may be discharged. (P. 5 74 )
●The 12 volt battery terminal connections may be loose or corroded.
■The starter motor does not turn over, the interior lights and head-
lights 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 12 volt battery terminals may be disconnected.
●The 12 volt battery may be discharged. (P. 5 74 )
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.

636
Alphabetical index
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Identification
Engine .................................................... 588
Vehicle ....................................................587
Ignition switch
Engine switch.........................................135
Illuminated entry system ....................382
I/M test ....................................................... 441
Immobilizer system .................................85
Indicator lights...........................................151
Initialization
Items to initialize ................................. 624
Inside rear view mirror ............................71
Instrument panel light control........... 148
Interior lights
Interior lights.........................................383
Wattage................................................. 600
Intuitive parking assist .......................... 183
Jack
Positioning a floor jack.................... 446
Vehicle-equipped jack ...................556
Jack handle ..............................................556
Keyless entry............................................... 41
Keys
Engine (ignition) switch ....................135
If the electronic key does 
not operate properly ...................... 571
If you lose your keys.........................570
Key number plate ..................................24
Keys ..............................................................24
Mechanical key...................................... 25
Wireless remote control key ............ 41Lexus Link System.................................. 421
Light bulbs
Replacing ................................................ 512
Wattage .................................................600
Light sensitive optitron meter............149
Lights
Fog light switch ....................................160
Headlights switch................................ 157
Interior lights list ................................. 382
Replacing light bulbs ......................... 512
Turn signal lever................................... 144
Vanity lights.......................................... 394
Wattage .................................................600
Maintenance
Do-it-yourself maintenance..........442
General maintenance..................... 438
Maintenance data .............................586
Maintenance requirements.......... 436
Meter
Instrument panel light control ....... 148
Meters....................................................... 147
Micro dust and pollen filter ................251
Mirrors
Inside rear view mirror .........................71
Side mirror heater............................. 255
Side mirrors.............................................. 73
Vanity mirrors ..................................... 394
Moon roof................................................... 78
MP3 disc.................................................. 276
Multi-information display ....................154I
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