2009 Lexus GS450h power steering

5
When trouble arises
511
5-2. Steps to take in an emergency
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Have the vehicle inspected immediately.
Failure to investigate the cause of the following warnings may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Malfunction indicator lamp Malfunction in:
• The emission control system;
• The electronic engine control system;
• The hybrid system;
• The electronic throttle control system; or
• The transmission control system.
SRS warning light
Malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system.
(U.S.A.)

(Canada)
ABS warning lightMalfunction in:
•The ABS; or
• The brake assist system.
ECB (Electronically controlled brake system) warning light Malfunction in the electronically controlled brake system.
Electric power steering system warning light
Malfunction in the EPS.
“PCS” warning light (if equipped)Malfunction in the pre-collision system.
Slip indicatorMalfunction in the Enhanced VSC.
The indicator will blink when Enhanced VSC, TRAC or hill-
start assist control is operational. ( →P. 2 1 5 )
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516
5-2. Steps to take in an emergency
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
■If the tire pressure warning light comes on after blinking for 1 minute frequently
If the tire pressure warning light comes on after blinking for 1 minute frequently
when the “POWER” switch is turned to ON mode, have it checked by your Lexus
dealer.
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of
vehicle control and result in death or serious injury.
●Vehicles with standard tires:
• Stop your vehicle in a safe place as soon as possible. Adjust the tire inflationpressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure
adjustment, it is probable that you have a flat tire. Check the tires. If the tire is
flat, change to the spare tire and have the flat tire repaired by the nearest
Lexus dealer.
• Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose control of the steering wheel or the brakes.
●Vehicles with run-flat tires:
• Decelerate to the lowest appropriate speed as soon as possible. Do not drive
over 55 mph (90 km/h).
• Check and adjust the tire inflation pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure adjustment, it is probable that you have a flat tire. Have the tire replaced by
the nearest Lexus dealer.
• Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
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522
5-2. Steps to take in an emergency
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Wa r n i n g m e s s a g eDetails
Malfunction in the charging system.
Malfunction in the power steering system.
Malfunction in the brake system.
Malfunction in the ABS.
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534
5-2. Steps to take in an emergency
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
InteriorbuzzerExterior buzzerWarning messageDetailsCorrection procedure
Once
(Flashing)
The electronic key
battery is low.Replace the
battery.
( → P. 4 7 2 )

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.
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584
6-1. Specifications
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
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
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602
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
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
Enhanced VSCEnhanced Vehicle Stability Control
EPSElectric Power Steering
GAWRGross Axle Weight Ratings
GPSGlobal Positioning System
I/MEmission inspection and maintenance
INFOInformation
LEDLight Emitting Diode
LATCHLower Anchors and Tethers for Children
MMTMethylcy clopentadienyl Manganese Tricarbonyl
M + SMud and Snow
MTBEMethyl Tertiary Butyl Ether
OBDOn Board Diagnostics
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606
Alphabetical index
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
DoorsDoor lock.................................. 39, 51, 54
Rear door child protector ................ 55
Driver’s seat belt reminder light ...... 512
Driver’s seat position memory ........... 66
Driving
Correct posture .................................... 101
Procedures ............................................ 138
DVD player/changer..........................283
Electric power steering ....................... 214
Electronic key If the electronic key does not operate properly ................... 550
Replacing battery ...............................472
Emergency, in case of
If a warning light turns on ............... 510
If a warning message is displayed ............................................. 519
If the electronic key does
not operate properly ................... 550
If the hybrid system
will not start ....................................... 547
If the shift lever cannot be
shifted from “P”................................548
If the 12 volt battery is
discharged .......................................553
If you have a flat tire ............ 536, 546
If you lose your keys.........................549
If you think something is
wrong ................................................... 507
If your vehicle becomes stuck.... 560
If your vehicle needs to be towed .................................................... 501
If your vehicle overheats ................ 557
Energy monitor......................................... 29 Engine
ACCESSORY mode .....................149
Compartment ..................................... 438
Hood ....................................................... 435
How to start the hybrid system..................................... 148
If the hybrid system will not start ........................................547
Overheating ........................................ 557
Power (ignition) switch .................... 148
Engine compartment cover ............. 439
Engine coolant temperature gauge ...................................................... 159
Engine/power control unit coolant
Capacity ................................................ 569
Checking................................................444
Preparing and checking before winter..................................... 232
Engine oil Capacity ................................................ 567
Checking............................................... 440
Preparing and checking
before winter..................................... 232
Engine oil maintenance data ........... 442
Enhanced vehicle stability control .....................................................214
Event data recorder ............................508
First-aid kit storage belt ..................... 392
Floor mats ..................................................391
Fluid Brake ....................................................... 446
Washer..................................................... 451
Fog lights
Switch .........................................................172
Wattage ..................................................573
E
F
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610
Alphabetical index
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Smart access system with push-button start
Antenna location..................................... 41
Entry function.......................................... 39
Starting the hybrid system .................................... 148
Spare tire Inflation pressure................................ 572
Storage location ................................. 537
Spark plug ................................................569
Specifications .........................................564
Speedometer........................................... 159
Steering wheel Adjustment.................................................81
Audio switches ................................... 320
Steering wheel position
memory.................................................. 66
Storage compartment ........................ 376
Storage feature...................................... 372
Stuck
If your vehicle becomes stuck.... 560
Sun visors ................................................. 379
Switch Fog light switch..................................... 172
Ignition switch....................................... 148
Light switches ........................................169
Mode select switch.............................153
Power door lock switch .................... 54
“POWER” switch ............................... 148
Power window switch ........................85
Tire pressure warning reset switch ....................................... 453
Tire pressure warning select switch ...................455
Window lock switch ...........................85
Wipers and washer switch ............. 173 Tail lights
Switch ........................................................ 169
Theft deterrent system Alarm.......................................................... 98
Immobilizer system ..............................96
Theft prevention labels........................ 100
Tire inflation pressure ......................... 572
Tire information
Glossary ................................................ 583
Size ...........................................................580
Tire identification number ............. 579
Uniform Tire Quality Grading .....581
Tires Chains......................................................233
Checking............................................... 452
Compact spare tire...........................537
If you have a flat tire .............536, 546
Inflation pressure ................................572
Information ............................................577
Replacing .............................................. 536
Rotating tires........................................ 452
Size ............................................................572
Snow tires.............................................. 235
Tire pressure warning system..... 452
Tools........................................................... 536
Total load capacity .................................231
Touch screen.......................................... 240
Towing Dinghy towing ..................................... 237
Emergency towing .............................501
Trailer towing .......................................236
Traction control.......................................214T
GS450h_HV_U.book Page 610 Monday, April 27, 2009 10:10 AM