ABS 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

402
4-3. Do-it-yourself maintenance
FuseAmpereCircuit
23A/F15Fuel system
24INV W/P10Hybrid system
25IGCT No.120Hybrid system, IGCT No.2, 
IGCT No.3
26FR FOG15Fog light
27FR TAIL10Tail light, rear side marker light
28WA S H20Windshield washer
29HORN10Horn
30H-LP HI20Headlight high beam
31DC/DC140Charging system
32RAD FAN60Electric cooling fans
33LH J/B AM80
S/ROOF, FR P/SEAT LH, TV, A/C,
FUEL OPN, FR WIP, H-LP LVL, 
FR S/HTR LH, A/C W/P
34E/G AM60H-LP CLN, FR CTRL-AM, DEICER,
STB AM
35HEATER50Air conditioning system
36DEFOG50Rear window defogger
37ABS230VSC, ABS
38RH J/B-AM80
AM1, OBD, STOP SW, TI & TE, 
FR P/SEAT RH, STR LOCK, 
SECURITY, ECU-IG R, RH-IG, 
F S/HTR RH, CIG, PWR OUTLET, 
AIR SUS

403
4-3. Do-it-yourself maintenance
4
Maintenance and care
FuseAmpereCircuit
39RR J/B80STOP LP R, STOP LP L, RR TAIL,
PSB, RR FOG, RR-IG1
40OIL PUMP60Tr a n s m i s s i o n
41EPS80EPS
42P/ I - B 160EFI, F/PMP, INJ
43E/G-B30EM-VLV, FR CTRL-B, ETCS
44MAIN30H-LP R LWR, H-LP L LWR
45VGRS40VGRS
46ABS150ABS MOTOR, ABS MAIN1, 
ABS MAIN2
47P/ I - B 260A/F, BATT FAN, IGCT, INV W/P
48BATT FAN20Electric cooling fans
49RAD No.130Audio system
50RAD No.230Audio system
51IG2 MAIN20IG2, GAUGE, IGN
52TURN-HAZ15Front turn signal lights, rear turn 
signal lights
53ABS MAIN310Electronically controlled brake sys-
tem
54ECU-B10VGRS, EPS

432
5-2. Steps to take in an emergency
*1: Electronically Controlled Brake System
Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem, check
that the warning light turns off.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
ABS warning lightMalfunction in:
•The ABS; or
• The brake assist system.
ECB*1/VSC warning light
Malfunction in:
• The electronically controlled brake system; or
• The VSC.
Electric power steering system warning light Malfunction in the EPS.
Pre-collision system warning light (if equipped)Malfunction in the pre-collision system.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light 
(warning buzzer)
*2
A door or a trunk is not fully
closed.
Check that all doors and the
trunk are closed.
Low fuel level warning light Remaining fuel 
(Approximately 2.6 gal. [10
L, 2.2 Imp.gal.] or less)
Refuel the vehicle.

442
5-2. Steps to take in an emergency
Have the vehicle inspected by your Lexus dealer immediately.
Failing to investigate the cause of th e following warning may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately.
*: Electronically Controlled Brake System
Wa r n i n g m e s s a g eDetails
Malfunction in the TRAC, VSC or hill-start assist con-
trol system.
In some cases, only “CHECK VSC” or “CHECK
ECB
*” is displayed.
(U.S.A)
(Canada)
Malfunction in the ABS or BA.In some cases, only “CHECK VSC” or “CHECK
ECB
*” is displayed.
Malfunction in the VGRS
(Steering guide symbol
and arrows are flashing)
The steering sensor cable is broken and signals can-
not be received.

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

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

517
Alphabetical index
Electric power steering warning light ..................................... 432
Low fuel level....................................... 432
Malfunction indicator lamp ............ 431
Master warning light ........................ 433
Open door ........................................... 432
Pre-collision system ......................... 432
Seat belt reminder light .................. 433
SRS airbags ............................................ 431
Tire pressure warning light........... 433
Warning messages Anti-lock Brake System (ABS) ... 442
Brake Assist (BA) .............................. 442
Dynamic radar 
cruise control ................................... 440
Engine oil level .................................... 445
Engine oil maintenance.................. 445
Engine oil pressure............................ 437
Headlight ............................................... 438
Hill-start assist control...................... 442
Hood ....................................................... 443
Hybrid system .......................... 437, 447
Intuitive parking 
assist .............................. 439, 446, 451
Moon roof ............................................. 444
Open door ........................................... 443
Parking brake ...................................... 444
Pre-Collision System .......... 439, 446
Refueling ................................................ 450
Rear lights system ............................. 438
Smart access system with 
push-button start............................ 452
Steering lock ............................ 439, 454
Tire pressure warning 
system...................................... 438, 446
TRAC (Traction control 
system) .................................................442 Trunk ........................................................
444
VGRS (Variable Gear Ratio 
Steering) ............................................. 442
VSC/ECB (Vehicle Stability 
Control/Electronically Controlled 
Brake system) .................................. 442
Washer fluid ......................................... 444
Washer Checking ............................................... 374
Preparing and checking  before winter ......................................174
Switch......................................................... 124
Washing and waxing ........................... 344
Weight Cargo capacity .................................... 170
Load limits ............................................... 173
Weight.................................................... 480
Wheels ..................................................... 389
Window glasses ...................................... 52
Window lock switch ............................... 52
Windows Power windows ..................................... 52
Rear window defogger.................... 199
Washer ..................................................... 124
Windshield wipers Position...................................................... 176
Windshield wipers .............................. 124
Winter driving tips .................................. 174
Wireless remote control Locking/Unlocking ............................. 23
Replacing the battery....................... 393
WMA disc ............................................... 224

519
What to do if...
The warning light or indicator
light comes onP. 4 3 0If the warning light turns on
■Warning lights
or orv
P. 4 3 0P. 4 3 1
P. 4 3 3
or
P. 4 3 2P. 4 3 3
P. 4 3 2P. 4 3 3
P. 4 3 2P. 4 3 2
P. 4 3 1P. 4 3 2
P. 4 3 2P. 4 3 3
*: Electronically Controlled Brake 
System
P. 4 3 1
Brake system warning lightMalfunction indicator lamp
ABS warning lightDriver’s seat belt reminder light
Front passenger’s seat belt
reminder light
ECB*/VSC warning lightTire pressure warning light
Low fuel level warning lightElectric power steering warning
light
SRS warning lightPre-collision system warn-
ing light
Open door warning lightMaster warning light
Charging system warning
light
The warning message is dis-
playedP. 4 3 6If the warning message is displayed