immobilizer Lexus GS450h 2007 Using the hands-free system (for cellular phone) / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. OWNER'S MANUAL (OM30727U)

TABLE OF CONTENTSIndex
ii
1-1. Hybrid system .................................. 2Hybrid system ...................................... 2
1-2. Key information ............................ 12 Keys ....................................................... 12
1-3. Opening, closing and locking 
the doors and trunk ................... 14
Smart access system with  push-button start ........................... 14
Wireless remote control .............. 23
Doors.................................................... 26
Trunk.................................................... 30
1-4. Adjustable components ............ 34 Front seats .......................................... 34
Driving position memory 
system .............................................. 36
Head restraints................................. 39
Seat belts ............................................ 42
Steering wheel.................................. 48
Inside rear view mirror.................. 49
Outside rear view mirrors .......... 50
1-5. Opening and closing the 
windows and moon roof .......... 52
Power windows................................ 52
Moon roof ......................................... 55 1-6. Refueling ....................................... 58
Opening the fuel tank cap.......... 58
1-7. Anti-theft system ......................... 62 Hybrid vehicle immobilizer 
system ............................................... 62
Alarm.................................................... 64
Theft prevention labels 
(U.S.A.) ............................................. 66
1-8. Safety information ....................... 67 Correct driving posture ............... 67
SRS airbags ....................................... 69
Child restraint sy stems ................ 80
Installing child restraints ............... 83
2-1. Driving procedures..................... 94 Driving the vehicle .......................... 94
Starting the hybrid system .......... 101
Transmission ................................... 104
Turn signal lever............................. 108
Parking brake ................................. 109
2-2. Instrument cluster ...................... 110 Gauges and meters ...................... 110
Indicators and warning lights ..... 114
Multi-information display............. 117
1Before driving
2When driving

Before driving1
1
1-1. Hybrid system ............................... 2Hybrid system ................................... 2
1-2. Key information.......................... 12 Keys..................................................... 12
1-3. Opening, closing and locking 
the doors and trunk................. 14
Smart access system with 
push-button start ........................ 14
Wireless remote control............ 23
Doors................................................. 26
Trunk .................................................. 30
1-4. Adjustable components .......... 34 Front seats ....................................... 34
Driving position memory 
system ............................................ 36
Head restraints.............................. 39
Seat belts ......................................... 42
Steering wheel............................... 48
Inside rear view mirror ............... 49
Outside rear view mirrors ....... 50 1-5. Opening and closing the

windows and moon roof ....... 52
Power windows ............................. 52
Moon roof ....................................... 55
1-6. Refueling ..................................... 58 Opening the fuel tank cap ....... 58
1-7. Anti-theft system ...................... 62 Hybrid vehicle immobilizer 
system ............................................ 62
Alarm ................................................ 64
Theft prevention labels 
(U.S.A.) .......................................... 66
1-8. Safety information .................... 67 Correct driving posture ............. 67
SRS airbags .................................... 69
Child restraint systems .............. 80
Installing child restraints ............ 83

62
1-7. Anti-theft system
Hybrid vehicle 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 hybrid vehicle immobilizer system For vehicles sold in the U.S.A.
FCC ID: NI4TMIMB-1
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 co
nditions: (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 tran sponder chips that prevent the hybrid
system from starting if the key has not been previously registered in the
vehicle's on-board computer.
The indicator light flashes after
the power switch has been
turned “OFF” to indicate that
the system is operating.

63
1-7. Anti-theft system
1
Before driving
CAUTION
■Certifications for the hybrid vehicle 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 hy brid vehicle immobilizer system. If any
unauthorized changes or modifications are made, the proper operation of the sys-
tem cannot be guaranteed.

102
2-1. Driving procedures
■If the hybrid system does not start
The hybrid vehicle immobilizer system may not have been deactivated. (P.
6 2 )
■When the power switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Lexus
deal

er immediately.
■If the “READY” light does not come on
If the “READY” light does not come on when you press the power switch with the
shi
ft lever in “P” and the brake pedal pressed, contact your Lexus dealer immedi -
ately.
■Auto power OFF function
The power switch will automatically turn OFF when lef
t in “ACC” mode for 1 hour or
more.
■When the ambient temperature is low
Such as during winter driving conditions, it
may take time until the “READY” light
comes on.
■Sounds and vibrations specific to a hybrid vehicle
 P.
4
■When the hybrid system is malfunctioning
P. 4 4 4
■Electronic key battery depletion
P.
1 8
■When the electronic key battery is discharged
P.
3 9 3
■Conditions affecting operation
P.
1 6
■Leak detection pump
Several hours after the hybrid system is turned off, you may hear a sound coming
fr

om underneath the luggage compartment for several minutes. This is normal
operation and does not indicate a malfunction.

466
5-2. Steps to take in an emergency
If the hybrid system will not start
If the hybrid system will not start even though correct starting procedures
are being followed (
P. 1 0 1), consider each of the following points.
■The hybrid system will not start ev en if you are carrying the cor-
rect electronic key
One of the following may be the cause of the problem.
● The electr
onic key battery may be discharged. ( P. 1 8 )
● Ther
e may not be sufficient fuel in the vehicle’s tank. 
Add fuel to the vehicle.
● Ther
e may be a malfunction in the steering lock system.
● Ther
e may be a malfunction in the hybrid vehicle immobilizer sys -
tem. 
( P. 6 2 )
■ The interior lights and headlights ar
e 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 12 v
olt battery may be discharged. ( P. 471)
● The 12 v
olt battery terminal connections may be loose or cor -
roded.
■ The 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 12 v
olt battery terminals may be discon -
nected.
● The 12 v
olt battery may be discharged. ( P. 471)
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.

513
Alphabetical index
Garage door opener..........................334
Gas station information ..................... 520
Gauges........................................................ 110
Glove box ................................................. 312
Hands-free system ............................... 263
Head restraints.......................................... 39
Headlight aim ............................................ 411
Headlight cleaner .................................. 126
Headlights AFS (Adaptive Front lighting 
System) ................................................... 121
Discharge headlights 
precautions .........................................418
Replacing light bulbs ......................... 413
Switch ........................................................ 120
Wattage ................................................. 488
Heaters Seat heaters.............................. 324, 326
Side mirror .............................................. 199
Hill-start assist control ......................... 162
Hood ......................................................... 358
Hooks
Cargo...................................................... 332
Shopping bag...................................... 332
Hybrid system ....
.............................................. 2
Emergency shut off syste
m .................6
Energy monitor/consumption 
screen .........................................................6
High voltage components ................... 5
Power meter ........................................... 110
Power switch .......................................... 101
Hybrid vehicle immobilizer 
system ........................................................62 Illuminated entry system ....................
307
I/M test...................................................... 354
Indicator lights........................................... 114
Initialization Items to initialize ................................ 505
Inside rear view mirror .......................... 49
Instrument panel light control ............. 111
Interior lights Interior lights ........................................ 309
Wattage ................................................. 488
Intuitive parking assist .......................... 139
Jack Positioning the jack .......................... 359
Replacing the wheel ........................ 456
Jack handle.............................................. 456
Keys If you lose your keys ........................ 468
Key number plate ................................... 12
Keys ............................................................... 12
Power switch........................................... 101
Mechanical key ........................................ 12
When the electronic key battery 
is discharged.................................... 469
Wireless remote control ................... 23
Light bulbs Replacing ................................................ 413
Wattage ................................................. 488
Light sensitive optitron meter............. 112
Lights Fog light switch ..................................... 123
Headlights switch................................ 120
Interior lights list .................................. 307
Replacing light bulbs ......................... 413
G
H
I
J
K
L

516
Alphabetical index
Hybrid vehicle immobilizer 
system ..................................................... 62
Theft prevention labels .......................... 66
Tire inflation pressure ......................... 487
Tire information Glossary................................................. 497
Size ........................................................... 494
Tire identification number ............. 493
Uniform tire quality grading ......... 495
Tires Chains ....................................................... 176
Checking ............................................... 375
Compact spare tire .......................... 457
If you have a flat tire ............. 455, 456
Inflation pressure................................ 487
Information............................................ 492
Pressure warning system .............. 375
Replacing ............................................... 456
Rotating tires ........................................ 375
Size ........................................................... 487
Snow tires ................................................ 177
Tools ........................................................... 456
Total load capacity ................................ 173
Touch screen ........................................... 182
Towing Dinghy towing ...................................... 180
Emergency towing ............................. 421
Trailer towing......................................... 179
TRAC (Traction control) .................... 162
Transmission If the shift lever cannot be 
shifted from P ................................... 467
Mode select switch............................ 105
S mode..................................................... 106
Transmission ......................................... 104
Trip meter .................................................... 111Trunk
Opener ..................................................... 30
Trunk light ................................................. 32
Wattage ................................................. 488
Turn signal lights Replacing light bulbs ......................... 413
Switch ........................................................ 108
Wattage ................................................. 488
Vanity lights Vanity lights............................................ 318
Wattage ................................................. 488
Vanity mirrors ..........
...................................318
VDIM (Vehicle Dynamics 
Integrated Management) ................163
Vehicle identification number.......... 481
Vehicle load limits .................................. 173
Ventilators ............................................... 326
VGRS (Variable Gear Ratio 
Steering) .................................................162
VSC (Vehicle Stability Control) ...... 162
Warning buzzers Brake system ....................................... 430
Downshifting.......................................... 106
Open door ........................................... 432
Seat belt reminder ............................ 433
Warning lights Anti-lock brake system (ABS) .... 432
Brake system ....................................... 430
Charging system ................................. 431
ECB/VSC (Electronically 
Controlled Brake System/ 
Vehicle Stability Control)...........432
V
W

518
What to do if...
What to do if...
A tire puncturesP. 4 5 5 /
456If you have a flat tire
The hybrid system does not start
P. 6 2Hybrid vehicle immobilizer system
P. 4 6 6If the hybrid system will not start
P. 4 7 1If the 12 volt battery is discharged
The shift lever cannot be 
moved outP. 4 6 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. 4 7 5If your vehicle overheats
The key is lostP. 4 6 8If you lose your keys
The battery runs outP. 4 7 1If the 12 volt battery is discharged
The doors cannot be lockedP. 2 6Doors
The horn begins to soundP. 6 4Alarm
The vehicle is stuck in mud or
sandP. 4 7 8If the vehicle becomes stuck