2008 Lexus GS450h power steering

5
When trouble arises
515
5-2. Steps to take in an emergency
GS_HV_U
December 12, 2007 3:50 pm
InteriorbuzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure
Once
(Flashing)
The electronic key
battery is low.Replace the
battery.
( P. 4 5 4 )

An open door has
been closed and
the “POWER”
switch has been
turned twice to
the ACCES-
SORY mode from
OFF.
Press the
“POWER”
switch while
applying the
brakes.

(Flashing)
The steering lock
has not released
within 3 seconds
of pressing the
“POWER” switch.
The “POWER”
switch indicator
will flash green for
15 seconds.Press the
“POWER”
switch again
while turn-
ing the
steering
wheel with
the brake
pedal
depressed.

563
6-1. Specifications
6
Vehicle specifications
GS_HV_U
December 12, 2007 3:50 pm
Tire related termMeaning
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
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1* below
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter 
(Wheel diameter)Nominal diameter of the bead seat

582
GS_HV_U
December 12, 2007 3:30 pm
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
A/CAir Conditioning
ABSAnti-Lock Brake System
AFSAdaptive Front-lighting System
ALRAutomatic Locking Retractor
CRSChild Restraint System
DISPDisplay
ECUElectronic Control Unit
EDREvent Data Recorder
ELREmergency Locking Retractor
EPSElectric Power Steering
GAWRGross Axle Weight Ratings
GPSGlobal Positioning System
I/MEmission inspection and maintenance
INFOInformation
LEDLight Emitting Diode
MMTMethylcy clopentadienyl Manganese Tricarbonyl
M + SMud and Snow
MTBEMethyl Tertiary Butyl Ether
OBDOn Board Diagnostics

586
Alphabetical index
GS_HV_U
December 12, 2007 3:50 pm
DoorsDoor lock................................ 35, 47, 50
Rear door child protector .................. 51
Driver’s seat belt reminder light .....493
Driver’s seat position memory ...........60
Driving Correct posture .................................... 93
Procedures .............................................128
DVD player/changer.......................... 266
Electric power steering ..................... 200
Electronic key If the electronic key does 
not operate properly ......................531
Replacing battery .............................. 454
Emergency, in case of If a warning light turns on ................491
If a warning message is displayed ........................................... 500
If the electronic key does 
not operate properly ......................531
If the hybrid system 
will not start .......................................528
If the shift lever cannot be  shifted from “P”................................ 529
If the 12 volt battery is 
discharged ....................................... 534
If you have a flat tire ............... 517, 527
If you lose your keys.........................530
If you think something is 
wrong .................................................. 488
If your vehicle becomes stuck.......541
If your vehicle needs to be 
towed ................................................... 482
If your vehicle overheats ................538
Energy monitor......................................... 27 Engine
ACCESSORY mode .....................139
Compartment ..................................... 420
Hood ......................................................... 417
How to start the 
hybrid system..................................... 138
If the hybrid system 
will not start ....................................... 528
Overheating ........................................ 538
Power (ignition) switch .................... 138
Engine compartment cover ............... 421
Engine coolant temperature 
gauge ...................................................... 148
Engine/power control unit coolant Capacity ................................................ 548
Checking................................................ 427
Preparing and checking 
before winter...................................... 215
Engine oil Capacity .................................................547
Checking................................................ 422
Preparing and checking 
before winter...................................... 215
Engine oil maintenance data ........... 425
Event data recorder ............................ 489
First-aid kit storage belt ..................... 375
Floor mats ................................................ 374
Fluid Brake ........................................................429
Washer....................................................434
Fog lights Switch .......................................................... 161
Wattage ................................................. 552
Foot light .................................................. 352
E
F

590
Alphabetical index
GS_HV_U
December 12, 2007 3:50 pm
Smart access system with 
push-button start Antenna location....................................37
Entry function.......................................... 35
Starting the 
hybrid system .................................... 138
Spare tire Inflation pressure................................. 551
Spare tire................................................. 518
Spark plug ............................................... 548
Specifications .........................................544
Speedometer........................................... 148
Steering wheel Adjustment................................................73
Audio switches ...................................303
Steering wheel position 
memory.................................................. 60
Storage compartment ........................359
Storage feature......................................355
Stuck If your vehicle becomes stuck.......541
Sun visors ................................................. 362
Switch Fog light switch ...................................... 161
Ignition switch....................................... 138
Light switches ....................................... 158
Mode select switch............................. 143
Power door lock switch .................... 50
“POWER” switch ............................... 138
Power window switch ......................... 77
Tire pressure warning 
reset switch ....................................... 436
Tire pressure 
warning select switch...................438
Window lock switch ............................ 77
Wipers and washer switch ............. 162 Tachometer ............................................. 148
Tail lights
Switch ........................................................158
Theft deterrent system Alarm.......................................................... 90
Immobilizer system ............................. 88
Theft prevention labels.......................... 92
Tire inflation pressure .......................... 551
Tire information Glossary ................................................ 562
Size ........................................................... 559
Tire identification number .............558
Uniform Tire Quality Grading ... 560
Tires Chains....................................................... 216
Checking............................................... 435
Compact spare tire............................518
If you have a flat tire ............... 517, 527
Inflation pressure ................................. 551
Information ........................................... 556
Replacing ................................................ 517
Rotating tires........................................ 435
Size ............................................................. 551
Snow tires................................................ 218
Tire pressure warning system..... 435
Tools.............................................................517
Total load capacity ................................. 214
Touch screen.......................................... 224
Towing Dinghy towing .......................................221
Emergency towing ........................... 482
Trailer towing ...................................... 220
Traction control.....................................200T

591
Alphabetical index
GS_HV_U
December 12, 2007 3:50 pm
TransmissionIf the shift lever cannot be 
shifted from “P” ............................... 529
Mode select switch ............................ 143
“S” mode .................................................. 144
Transmission .......................................... 142
Trip meter..................................................148
Trunk Opener...................................................... 55
Trunk light ................................................ 56
Wattage ................................................. 552
Turn signal lights Replacing light bulbs ........................474
Switch ........................................................ 146
Wattage ................................................. 552
Vanity lights Vanity lights .......................................... 363
Wattage ................................................. 552
Vanity mirrors........................................ 363
Variable gear ratio steering .............. 201
Vehicle dynamics 
integrated managem ent .................. 201
Vehicle identification number ........ 545
Vehicle load limits.................................. 214
Vehicle stability control ..................... 200
Ventilators............................................... 369
Warning buzzers Brake system ......................................... 491
Downshifting.......................................... 145
Open door .......................................... 493
Seat belt reminder ............................ 493 Warning lights
Anti-lock brake system ................... 492
Brake system......................................... 491
Charging system................................. 491
Electric power steering warning light .....................................492
Electronically 
controlled brake system/ 
Vehicle stability control ...............492
Low fuel level .......................................493
Malfunction indicator lamp ...........492
Master warning light.........................494
Open door ............................................493
Pre-collision system..........................492
Seat belt reminder light...................493
SRS airbags...........................................492
Tire pressure warning light ...........493
Warning messages Anti-lock brake system .................. 504
Brake assist .......................................... 504
Dynamic radar cruise control................................... 502
Engine oil level ................................... 507
Engine oil maintenance ................. 507
Engine oil pressure .......................... 500
Headlight................................................. 501
Hill-start assist control .................... 504
Hood ....................................................... 505
Hybrid system........................ 500, 509
Intuitive parking 
assist .............................. 502, 508, 512
Moon roof ............................................ 506
Open door ........................................... 505
Parking brake ..................................... 506
Pre-collision system............ 502, 508
Refueling.................................................... 511
V
W

592
Alphabetical index
GS_HV_U
December 12, 2007 3:50 pm
Rear lights system............................... 501
Smart access system with 
push-button start ..............................513
Steering lock .............................. 501, 515
Tire pressure warning 
system ....................................... 501, 507
TRAC ......................................................504
Trunk ....................................................... 506
VGRS......................................................504
VSC/ECB ............................................504
Washer fluid ........................................ 506
Washer Checking ............................................... 434
Preparing and checking before winter ......................................215
Switch ........................................................ 162
Washing and waxing ...........................402
Weight Cargo capacity.....................................210
Load limits ............................................... 214
Weight .................................................... 544
Wheels ...................................................... 449
Window glasses ...................................... 77
Window lock switch ...............................50
Windows Power windows...................................... 77
Rear window defogger .................. 240
Washer ..................................................... 162
Windshield wipers Position ..................................................... 217
Windshield wipers .............................. 162
Winter driving tips ................................. 215
Wireless remote control key Locking/Unlocking ..............................47
Replacing the battery ...................... 454
WMA disc ............................................... 262

595
What to do if...
GS_HV_U
December 12, 2007 3:50 pm
The warning light or indicator
light comes onP. 4 9 1If the warning light turns on
■Warning lights
or orv
P. 4 9 1P. 4 9 2
P. 4 9 3
or
P. 4 9 2P. 4 9 3
P. 4 9 2P. 4 9 3
P. 4 9 3P. 4 9 2
P. 4 9 2P. 4 9 2
P. 4 9 3P. 4 9 4
*: Electronically Controlled Brake 
System
P. 4 9 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. 5 0 0If the warning message is displayed