flat tire Lexus GS450h 2007 Using the hands-free system (for cellular phone) / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. OWNER'S MANUAL (OM30727U)

TABLE OF CONTENTS
i
1Before drivingAdjusting and operating features such as door locks, mir-
rors, and steering column.
2When drivingDriving, stopping and safe-driving information.
3Interior featuresAir conditioning and audio systems, as well as other interior
features for a comfortable driving experience.
4Maintenance
and careCleaning and protecting your vehicle, performing do-it-your-
self maintenance, and maintenance information.
5When trouble
arisesWhat to do if the vehicle needs to be towed, gets a flat tire,
or is involved in an accident.
6Vehicle 
specificationsDetailed vehicle information.
7For US ownersReporting safety defects for US owners.
IndexAlphabetical listing of informat ion contained in this manual.

TABLE OF CONTENTSIndex
iv
3-4. Using the hands-free 
system........................................ 263
Hands-free system ...................... 263
Using the Bluetooth
® 
phone ............................................ 268
Setting the hands-free 
system ............................................. 281
3-5. Using the interior lights .......... 307 Interior lights list............................ 307
3-6. Using the storage features ...... 311 List of storage fe atures.................. 311
3-7. Other interior features............ 317 Sun visors.......................................... 317
Vanity mirror ................................... 318
Clock .................................................. 319
Outside temperature 
display ........................................... 320
Ashtrays ............................................ 321
Cigarette lighter ........................... 322
Power outlet ................................... 323
Seat heaters ................................... 324
Seat heaters and 
ventilators .................................... 326
Armrest ........................................... 328
Rear sunshade ............................... 329
Floor mats......................................... 331
Trunk features................................ 332
Garage door opener .................. 334
Compass.......................................... 339 4-1. Maintenance and care............ 344
Cleaning and protecting the 
vehicle exterior .......................... 344
Cleaning and protecting the 
vehicle interior............................ 346
4-2. Maintenance.............................. 349 Maintenance requirements ..... 349
General maintenance ................. 351
Emission inspection and 
maintenance (I/M) 
programs ...................................... 354
4-3. Do-it-yourself 
maintenance............................ 355
Do-it-yourself service 
precautions ................................. 355
Hood................................................. 358
Positioning the jack .................... 359
Engine compartment................... 361
Tires ................................................... 375
Tire inflation pressure................ 385
Wheels............................................. 389
Air conditioning filter................... 391
Electronic key battery ................ 393
Checking and replacing 
fuses ............................................... 395
Headlight aim.................................... 411
Light bulbs ........................................ 413
4Maintenance and care

1
2
3
4
5
6
7
v
5-1. Essential information .............. 420If your vehicle needs to be 
towed.............................................. 420
If you think something is 
wrong ............................................. 427
Event data recorder .................... 428
5-2. Steps to take in an 
emergency .............................. 430
If a warning light turns on or a 
warning buzzer sounds............... 430
If a warning message is 
displayed ....................................... 436
If you have a flat tire 
(Vehicles with run-flat 
tires) ................................................ 455
If you have a flat tire 
(Vehicles with standard 
tires) ................................................ 456
If the hybrid system will not 
start ................................................. 466
If the shift lever cannot be 
shifted from P .............................. 467
If you lose your keys ................... 468
When the electronic key  battery is discharged ............... 469
If the 12 volt battery is 
discharged .................................... 471
If your vehicle overheats ........... 475
If the vehicle becomes 
stuck................................................ 478 6-1. Specifications ............................ 480
Maintenance data ....................... 480
Fuel information ........................... 489
Tire information ............................ 492
6-2. Customization .......................... 500 Customizable features ............. 500
6-3. Initialization ............................... 505 Items to initialize .......................... 505
Reporting safety defects for 
U.S.A. owners............................ 508
Alphabetical index............................... 510
What to do if... ........................................ 518
5When trouble arises6Vehicle specifications
7For US owners
Index

vii
Tire
●Rotation
● Replacement
● Inflation pressure
● Information
P. 375
P. 456
P. 487
P. 492
Tail lights P. 120
Side marker light P. 120
Trunk P. 30
Rear window defogger P. 199
Door P. 26
Fuel filler door P. 58
Turn signal light P. 108
: If equipped

100
2-1. Driving procedures
NOTICE
■While driving the vehicle
Do not use the accelerator pedal or depress accelerator and brake pedals together
to hold the vehicle on a hill.
■When parking the vehicle
Always put the shift lever in “P”. Failure to do so may cause the vehicle to move or
the vehicle may accelerate suddenly if the accelerator pedal is accidentally
depressed.
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for a long
time. 
Doing so may damage the power steering motor.
●When driving over bumps in the road, drive as slowly as possible to avoid damag-
ing the wheels, underside of the vehicle, etc.
■If you hear a squealing or scraping no ise (brake pad wear limit indicators)
Have your Lexus dealer check and replac e the brake pads as soon as possible.
The rotor damage can result if the pads are not replaced when needed.
Front brake only: Moderate levels of the brake pad and disc wear allow enhanced
front braking power. As a result, the discs may wear more quickly than conventional
brake discs. Therefore, when replacing the brake pads, Lexus recommends that you
also have the thickness of the discs measured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or
that of the brake discs are exceeded.
■If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering wheel
firmly and gradually press the brak e pedal to slow down the vehicle.
●It may be difficult to control your vehicle.
●The vehicle will make abnormal sounds.
●The vehicle will behave abnormally.
Replace a flat tire with a new one. ( P. 4 5 9 )

166
2-4. Using other driving systems
CAUTION
■The hill-start assist control may not operate effectively when
●On steep inclines.
●On icy surfaces.
■When the VSC is activated
The slip indicator light flashes and a warning buzzer sounds. Always drive carefully.
Reckless driving may cause an accident. Exercise particular care when the indica-
tor light flashes and a buzzer sounds.
■Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total load
capacity. In addition, make sure that the ti res are inflated to the specified tire pres-
sure level.
The ABS and VSC will not function correctly if different tires are fitted on the vehi-
cle. 
Contact your Lexus dealer for further info rmation when replacing tires or wheels.
■Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect the
VDIM, and may cause the system to malfunction.

174
2-5. Driving information
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that ar
e appropriate to the prevailing outside tempera -
tures.
• Engine oil
• Engine/inverter coolant
• Washer fluid
● Ha
ve a service technician inspect th e level and specific gravity of
battery electrolyte.
● Ha
ve the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same si ze and brand, and that chains match
the size of the tires.
● Tire inflation pressure falls in winter as the outside temperature
falls. Add 2.8 to 4.3 psi (20 to 30 kPa, 0.2 to 0.3 kgf/cm2 or bar)
to the standard tire inflation pressure.

177
2-5. Driving information
2
When driving
To retract positionLower the wipers by pressing on
the upper par
t of the hook section.
■Snow chain installation
Observe the following precautions when installing and removing chains.
●Install and remove tire chains in a safe location.
●Install tire chains on the rear tires.
●Install tire chains following the inst ructions provided in the accompanying
instructions.
CAUTION
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents. 
Failing to do so may result in a loss of vehicle control and cause death or serious
injury.
●Use tires of the size specified for your vehicle.
●Maintain the specified level of tire inflation pressure.
●Do not drive in excess of 75 mph (120 km/h), regardless of the type of snow tires
being used.
●Snow tires should be installed on all wheels.

Maintenance and care4
343
4-1. Maintenance and care ......... 344Cleaning and protecting the 
vehicle exterior........................ 344
Cleaning and protecting the 
vehicle interior......................... 346
4-2. Maintenance ........................... 349 Maintenance 
requirements ............................ 349
General maintena nce .............. 351
Emission inspection and 
maintenance (I/M) 
programs ................................... 354 4-3. Do-it-yourself

maintenance......................... 355
Do-it-yourself service 
precautions ............................... 355
Hood .............................................. 358
Positioning the jack .................. 359
Engine compartment ................ 361
Tires ................................................. 375
Tire inflation pressure .............. 385
Wheels .......................................... 389
Air conditioning filter ............... 391
Electronic key battery ............. 393
Checking and replacing 
fuses ............................................. 395
Headlight aim ................................ 411
Light bulbs..................................... 413

353
4-2. Maintenance
4
Maintenance and care
Vehicle exterior
ItemsCheck points
Steering wheel
• Moves smoothly?
• Has correct free play?
• No strange noises?
ItemsCheck points
Doors/trunk• Operate smoothly?
Engine hood• The lock system works properly?
Fluid leaks• Is there any leakage after parking?
Ti r e
• Inflation pressure is correct?
• Tire surfaces not worn or dam-aged?
• Tires rotated according to the maintenance schedule?
• Wheel nuts are not loose?
CAUTION
■If the hybrid system is running
Turn off the hybrid system and ensure that there is adequate ventilation before per-
forming maintenance checks.