2007 Lexus GS450h steering

503
6-1. Specifications
6
Vehicle specifications
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excess ive loading, either separately or in
combination, can cause heat build up and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of transmission, power
steering, power brakes, power windows, power seats,
radio and heater, to the extent that these items are
available as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight
The sum of: 
(a) Curb weight 
(b) Accessory weight 
(c) Vehicle capacity weight 
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows

514
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Pow e r w i n d ow
• After reconnecting or changing the battery
• After changing a fuse
P. 5 1
Variable gear ratio
steeringP. 1 5 3
Intuitive parking assistP. 1 5 3
Engine oil maintenance
data• After changing engine oilP. 3 74
Tire pressure warning
system
• When rotating the tires on vehicles differing with front and rear tire infla-
tion pressures.
• When changing the tire inflation pressure by changing traveling speed
or load weight, etc.
• When changing the tire size.
P. 3 8 5
After reconnecting or performing main tenance on the 12 volt battery, the
hybrid system may not start. ( P. 380) Also, the following items must be
initialized for normal system operation.

518
Alphabetical index
Alphabetical index
A/C (Air conditioning system) ........ 192
ABS (Anti-lock Brake System) ........ 164
Active stabilizer suspension 
system...................................................... 164
Air conditioning system (A/C) Air conditioning filter .......................399
Automatic air conditioning 
system .................................................... 192
Airbags Airbag operating conditions........... 69
Airbag precautions for your 
child...........................................................72
Airbag warning light ........................ 439
Curtain shield airbag 
precautions .......................................... 75
General airbag precautions ............72
Locations of airbags............................ 66
Modification and disposal of 
airbags .................................................... 76
Side airbag precautions .....................72
Side and curtain shield airbags 
operating conditions ....................... 69
SRS airbags ............................................. 66
Alarm ............................................................. 61
Antenna ....................................................209
Armrest .....................................................323
Ashtrays ..................................................... 316
Audio system Antenna ..................................................209
Cassette player..................................... 212
CD player/changer ........................... 216
DVD information ................................. 251
DVD player/changer...................... 232
DVD video/audio ............................. 235
MP3/WMA disc ............................... 224
Optimal use.......................................... 255
Radio ........................................................ 203 Steering switches .............................. 259
Video CD .............................................. 247
Automatic headlight leveling 
system ...................................................... 124
Automatic light control system......... 122
AVS (Adaptive Variable 
Suspension System) ...........................163
BA (Brake Assist)...................................164
Back-up lights Wattage ................................................. 494
Battery 12 volt battery .......................................379
Checking................................................379
Hybrid battery (Tra ction battery) .... 5
If the 12 volt battery is 
discharged .........................................476
Preparing and checking 
before winter...................................... 176
Bluetooth
®.............................................. 263
Brake Fluid .......................................................... 378
Parking brake............................................111
Care Exterior ................................................... 352
Interior..................................................... 354
Seat belts ............................................... 355
Cargo capacity........................................ 172
Cargo hooks .......................................... 327
CD player/changer............................. 232
Chains ......................................................... 177
Child-protectors...................................... 26
Child restraint system (CRS)
Definition ...................................................82
Installation ................................................ 85
A
B
C

520
Alphabetical index
Emergency, in case ofIf a warning light turns on ..............438
If a warning message is 
displayed ............................................ 444
If the hybrid system will not 
start.......................................................... 471
If the shift lever cannot be  shifted from P ....................................472
If the 12 volt battery is 
discharged ....................................... 476
If you have a flat tire .............. 460, 461
If you lose your keys......................... 473
If you think something is 
wrong ................................................... 435
If your vehicle becomes stuck.....483
If your vehicle needs to be 
towed ................................................... 428
If your vehicle overheats ............... 480
When the electronic key battery 
is discharged .................................... 474
Energy monitor............................................ 6
Engine Compartment .....................................369
Hood........................................................366
How to start the hybrid system ... 103
If the hybrid system will not 
start.......................................................... 471
Overheating........................................ 480
Power switch ........................................ 103
Engine compartment cover .............370
Engine coolant temperature 
gauge......................................................... 112
Engine/inverter coolant Capacity .................................................490
Checking ............................................... 376
Preparing and checking before winter ...................................... 176 Engine oil
Capacity ................................................ 489
Checking................................................. 371
Preparing and checking 
before winter...................................... 176
Engine oil maintenance data ........... 374
EPS (Electric Power Steering) .........164
Event data recorder ............................ 436
First-aid kit storage belt ..................... 327
Floor mats ................................................ 326
Fluid Brake ....................................................... 378
Washer................................................... 382
Fog lights Switch ........................................................ 125
Wattage ................................................. 494
Foot light .................................................. 304
Front passenger occupant 
classification system ............................. 77
Front passenger's seat belt 
reminder light ..................................... 440
Front seats Adjustment ...............................................33
Driving position memory ..................35
Front turn signal lights Wattage ................................................. 494
Fuel Capacity ................................................ 488
Fuel gauge ................................................ 112
Gas station information ................. 528
Information ........................................... 495
Refueling ................................................... 55
Messages .............................................. 456
Fuel filler door ........................................... 55
Fuses .......................................................... 403
F

523
Alphabetical index
Cleaning and maintaining 
the seat belts..................................... 355
Emergency Locking Retractor  (ELR) ........................................................ 42
How to wear your seat belt............. 40
How your child should wear 
the seat belt...........................................43
Pre-collision seat belts........................ 42
Pregnant women, 
proper seat belt use.......................... 42
Reminder light..................................... 440
Seat belt extenders ...............................43
Seat belt pretensioners........................ 41
Seat heaters.................................... 319, 321
Seat ventilators........................................ 321
Seating capacity ..................................... 175
Seats Child seats/child restraint 
system installation ............................. 85
Cleaning ................................................ 354
Driving position memory ................. 35
Head restraint ........................................ 38
Properly sitting in the seat.................64
Seat adjustment ......................................33
Seat adjustment precautions ...........33
Seat heaters..................................319, 321
Ventilated seats .................................... 321
Service reminder indicators ...............117
Shift lever If the shift lever cannot be 
shifted from P .................................... 472
Transmission ..........................................106
Shift lock system .................................... 472
Shopping bag hooks ............................327
Side airbags ................................................66
Side marker lights Switch ........................................................ 122 Side mirror
Adjusting and folding..........................48
Driving position memory ..................35
Smart access system with 
push-button start Antenna location .....................................15
Entry function ............................................13
Starting the hybrid system .............. 103
Spare tire Inflation pressure ................................493
Spare tire ................................................ 462
Spark plug................................................490
Specifications .........................................486
Speedometer ............................................ 112
Steering wheel Adjustment ............................................... 46
Audio switches....................................259
Driving position memory ..................35
Storage compartment ........................309
Storage feature......................................306
Stuck If your vehicle becomes stuck .... 483
Sun visors .................................................. 312
Switch Fog light switch .................................... 125
Light switches ........................................ 122
Mode select switch ............................ 107
Power door lock switch .................... 25
Power switch......................................... 103
Power window switch ....................... 50
Window lock switch........................... 50
Wipers and washer switch .............126

524
Alphabetical index
Tail lightsSwitch ........................................................ 122
Theft deterrent system Alarm ............................................................ 61
Hybrid vehicle immobilizer 
system ..................................................... 59
Theft prevention labels .......................... 63
Tire inflation pressure .........................493
Tire information Glossary.................................................503
Size .......................................................... 500
Tire identification number ............. 499
Uniform tire quality grading .......... 501
Tires Chains ....................................................... 177
Checking ...............................................383
Compact spare tire .......................... 462
If you have a flat tire ............... 460, 461
Inflation pressure................................ 493
Information............................................498
Pressure warning system ..............383
Replacing .................................................461
Rotating tires ........................................383
Size ........................................................... 493
Snow tires ................................................ 179
Tools ............................................................ 461
Total load capacity ................................ 175
Touch screen ........................................... 184
Towing Dinghy towing .......................................182
Emergency towing ........................... 429
Trailer towing.......................................... 181
TRAC (Traction control) .................... 164
Transmission If the shift lever cannot be shifted from P ....................................472
Mode select switch.............................107 S mode .....................................................108
Transmission..........................................106
Trip meter ................................................... 113
Trunk Opener ...................................................... 29
Trunk light .................................................. 31
Wattage ................................................. 494
Turn signal lights Replacing light bulbs ......................... 421
Switch ..........................................................110
Wattage ................................................. 494
Vanity lights Vanity lights............................................ 313
Wattage ................................................. 494
Vanity mirrors ............................................. 313
VDIM (Vehicle Dynamics 
Integrated Management) ................165
Vehicle identification number......... 487
Vehicle load limits .................................. 175
Ventilators .................................................321
VGRS (Variable Gear Ratio 
Steering) .................................................164
VSC (Vehicle Stability Control) ......164
Warning buzzers Brake system ....................................... 438
Downshifting..........................................108
Open door .......................................... 440
Seat belt reminder ............................ 440
Warning lights Anti-lock brake system (ABS) ... 439
Brake system ....................................... 438
Charging system ............................... 438T
V
W

525
Alphabetical index
ECB/VSC (Electronically 
Controlled Brake System/ 
Vehicle Stability Control) .......... 439
Electric power steering  warning light ..................................... 439
Low fuel level....................................... 440
Malfunction indicator lamp .......... 439
Master warning light .......................... 441
Open door ........................................... 440
Pre-collision system ......................... 439
Seat belt reminder light .................. 440
SRS airbags .......................................... 439
Tire pressure warning light........... 440
Warning messages Anti-lock Brake System (ABS) .. 448
Brake Assist (BA) ............................. 448
Dynamic radar cruise control ................................... 446
Engine oil level ...................................... 451
Engine oil maintenance.................... 451
Engine oil pressure........................... 444
Headlight ............................................... 445
Hill-start assist control..................... 448
Hood ....................................................... 449
Hybrid system ......................... 444, 453
Intuitive parking 
assist .............................446, 452, 456
Moon roof ............................................. 450
Open door ........................................... 449
Parking brake ...................................... 450
Pre-Collision System .......... 446, 452
Refueling ................................................ 456
Rear lights system ............................. 445
Smart access system with 
push-button start............................ 457
Steering lock ............................445, 459 Tire pressure warning

system ..................................... 445, 452
TRAC (Traction control 
system)................................................ 448
Trunk ....................................................... 450
VGRS (Variable Gear Ratio 
Steering) ............................................ 448
VSC/ECB (Vehicle Stability 
Control/Electronically Controlled 
Brake system) ................................. 448
Washer fluid ........................................ 450
Washer Checking ...............................................382
Preparing and checking 
before winter ......................................176
Switch.........................................................126
Washing and waxing ........................... 352
Weight Cargo capacity ..................................... 172
Load limits ...............................................175
Weight.................................................... 486
Wheels ...................................................... 397
Window glasses ......................................50
Window lock switch ...............................50
Windows Power windows .................................... 50
Rear window defogger.................... 199
Washer .....................................................126
Windshield wipers Position..................................................... 178
Windshield wipers ..............................126
Winter driving tips ..................................176
Wireless remote control Locking/Unlocking ............................. 22
Replacing the battery........................ 401
WMA disc ............................................... 224

527
What to do if...
The warning light or indicator
light comes onP. 4 3 8If the warning light turns on
■Warning lights
or orv
P. 4 3 8P. 4 3 9
P. 4 4 0
or
P. 4 3 9P. 4 4 0
P. 4 3 9P. 4 4 0
P. 4 4 0P. 4 3 9
P. 4 3 9P. 4 3 9
P. 4 4 0P. 4 4 1
*: Electronically Controlled Brake 
System
P. 4 3 8
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 4 4If the warning message is displayed