interior lights Lexus GS450h 2007 Using the hands-free system (for cellular phone) / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. (OM30727U) User Guide

401
4-3. Do-it-yourself maintenance
4
Maintenance and care
FuseAmpereCircuit
8IG210
Multiport fuel injection system/
sequential multiport fuel injection
system, noise filter
9EFI No.210Fuel system, exhaust system
10H-LP R LWR15Headlight low beam (right)
11H-LP L LWR15Headlight low beam (left)
12D/C CUT30DOME, MPX-B
13IGCT No.37. 5Hybrid battery (traction battery)
14IGCT No.27. 5Hybrid system
15MPX-B7. 5
Power windows, door control system,
power seat, electronically controlled
brake system, combination switch,
electric tilt and telescopic steering,
gauges and meters
16DOME7. 5Interior lights, foot lights, vanity light,
gauges and meters
17ABS MAIN110Electronically controlled brake sys-
tem
18ABS MOTOR30ABS
19ABS MAIN210Electronically controlled brake sys-
tem
20F/ P M P25Fuel system
21EFI25
EFI2, multiport fuel injection system/
sequential multiport fuel injection
system
22INJ20
Multiport fuel injection system/
sequential multiport fuel injection
system

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.

488
6-1. Specifications
Light bulbs
A: D4S high-intensity discharge bulbs
B: HB3 halogen bulbs 
C: Wedge base bulbs (amber) 
D: Wedge base bulbs (clear) 
E: HB4 halogen bulbs 
F: Double end bulbs
Light BulbsBulb No.WTy p e
Exterior
Headlights (low beam)D4S35A
Headlights (high beam)HB360B
Front turn signal lights21C
Parking lights5D
Fog lightsHB451E
Front side marker light1945D
Rear turn signal lights21C
Back-up lights92116D
Trunk light5F
InteriorVanity lights8D

510
Alphabetical index
Alphabetical index
A/C (Air conditioning system) ..........191
ABS (Anti-lock Brake System) ........ 162
Active stabilizer suspension 
system...................................................... 162
Air conditioning system (A/C) Air conditioning filter ......................... 391
Automatic air conditioning 
system ..................................................... 191
Airbags Airbag operating conditions............. 71
Airbag precautions for your 
child.......................................................... 75
Airbag warning light .......................... 431
Curtain shield airbag 
precautions .......................................... 78
General airbag precautions ........... 75
Locations of airbags............................ 69
Modification and disposal of 
airbags .................................................... 79
Side airbag precautions .................... 75
Side and curtain shield airbags 
operating conditions ........................72
SRS airbags ............................................. 69
Alarm ............................................................ 64
Antenna .................................................... 209
Armrest ..................................................... 328
Ashtrays ..................................................... 321
Audio system Antenna .................................................. 209
Cassette player..................................... 212
CD player/changer ........................... 216
DVD information ............................... 252
DVD player/changer...................... 232
DVD video/audio ............................. 235
MP3/WMA disc ............................... 224
Optimal use.......................................... 256
Radio ........................................................ 203Steering switches ..............................
260
Video CD ............................................. 248
Automatic headlight leveling 
system ...................................................... 122
Automatic light control system........ 120
AVS (Adaptive Variable 
Suspension System) ............................ 161
BA (Brake Assist)................................... 162
Back-up lights Wattage ................................................. 488
Battery 12 volt battery ........................................ 371
Checking................................................. 371
Hybrid battery (Tra cti
on battery) ....5
If the 12 volt battery is 
discharged .......................................... 471
Preparing and checking  before winter...................................... 174
Bluetooth
®..............................................266
Brake Fluid .......................................................... 370
Parking brake........................................ 109
Care Exterior .................................................... 344
Interior..................................................... 346
Seat belts ................................................ 347
Cargo capacity........................................ 170
Cargo hooks .......................................... 332
CD player/changer............................. 232
Chains ......................................................... 176
Child-protectors....................................... 27
Child restraint system (CRS) Definition .................................................. 80
Installation ................................................ 83
A
B
C

511
Alphabetical index
Installing CRS with lower 
anchorages .......................................... 87
Installing CRS with seatbelts .......... 83
Installing CRS with top straps ........ 88
Child safety Airbag precautions .............................. 75
Child restraint system ........................ 80
Child-protectors.................................... 27
How your child should wear 
the seatbelt ........................................... 45
Installing child restraints .................... 83
Moon roof ................................................. 57
Power window lock switch .............. 52
Power window precautions............ 54
Removed electronic key battery 
precautions ....................................... 394
Seat belt comfort guide...................... 43
Seat belt precautions...........................46
Seat heater precautions ..... 324, 326
Trunk ............................................................ 33
Cigarette lighter .................................... 322
Cleaning Exterior ................................................... 344
Interior..................................................... 346
Seat belts ................................................ 347
Clock........................................................... 319
Coin holder .............................................. 314
Compass ................................................. 339
Condenser.............................................. 369
Console box ............................................. 312
Cooling system Engine overheating .......................... 475Cruise control
Cruise control........................................ 127
Dynamic radar cruise control....... 130
Cup holders ............................................. 315
Curtain shield airbags............................ 69
Customizable features ...................... 500
Daytime running light system ............. 121
Defogger Rear window ......................................... 199
Side mirror.............................................. 199
Dimension............................................... 480
Dinghy towing ......................................... 180
Display Energy flow ................................................. 6
Multi-informatio n display
..................117
Touch screen ........................................ 182
Trip information ..................................... 118
Warning message ............................. 436
Do-it-yourself maintenance ............. 355
Door courtesy lights ........................... 308
Door pocket............................................. 316
Doors
Door lock .................................................. 26
Rear door child protector ................ 27
Driver's seat belt reminder light ..... 433
Driving Correct posture..................................... 67
Procedures .............................................. 94
DVD player/changer.......................... 232
Electronic key Replacing battery ............................... 393
When the electronic key battery 
is discharged.................................... 469
D
E

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
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