tire pressure Lexus GS450h 2007 Instrument cluster /

TABLE OF CONTENTSIndex
iv
3-4. Using the hands-free 
system......................................... 261
Hands-free system ....................... 261
Using the Bluetooth
® 
phone ............................................. 265
Setting the hands-free 
system ............................................ 278
3-5. Using the interior lights ......... 303 Interior lights list........................... 303
3-6. Using the storage 
features ..................................... 306
List of storage fe atures.............. 306
3-7. Other interior features............ 312 Sun visors.......................................... 312
Vanity mirror ................................... 313
Clock .................................................. 314
Outside temperature 
display ............................................. 315
Ashtrays ............................................ 316
Cigarette lighter ............................ 317
Power outlet .................................... 318
Seat heaters ..................................... 319
Seat heaters and 
ventilators ...................................... 321
Armrest ............................................ 323
Rear sunshade ............................... 324
Floor mats........................................ 326
Trunk features................................ 327
Garage door opener .................. 329
Compass........................................... 334
Lexus Link System ...................... 338 4-1. Maintenance and care............ 352
Cleaning and protecting the 
vehicle exterior .......................... 352
Cleaning and protecting the 
vehicle interior............................ 354
4-2. Maintenance.............................. 357 Maintenance requirements ..... 357
General maintena nce ............... 359
Emission inspection and 
maintenance (I/M) 
programs ...................................... 362
4-3. Do-it-yourself 
maintenance............................ 363
Do-it-yourself service 
precautions .................................. 363
Hood.................................................. 366
Positioning the jack ..................... 367
Engine compartm ent.................. 369
Tires .................................................. 383
Tire inflation pressure................. 393
Wheels.............................................. 397
Air conditioning filter.................. 399
Electronic key battery ................. 401
Checking and replacing 
fuses ............................................... 403
Headlight aim.................................. 419
Light bulbs ........................................ 421
4Maintenance and care

vii
Tire
●Rotation
● Replacement
● Inflation pressure
● Information
P. 383
P. 461
P. 493
P. 498
Tail lights P. 122
Side marker light P. 122
Trunk P. 29
Rear window defogger P. 199
Door P. 25
Fuel filler door P. 55
Turn signal light P. 110
: If equipped

159
2-4. Using other driving systems
2
When driving
NOTICE
■When using intuitive parking assist
In the following situations, the system may not function correctly due to a sensor
malfunction etc. Have the vehicle checked by your Lexus dealer.
●A beep does not sound when you turn the main switch ON.
●The intuitive parking assist operation display flashes, and a beep sound when no
obstacle has been detected.
●If the area around a sensor collides with something, or is subjected to strong
impact.
●If the bumper collides with something.
●If the display shows continuously without a beep.
■When changing tires
If you install tires of a size other than that recommended by the manufacturer, the
system will be unable to correctly detect steering wheel movement. Always use tire
sizes recommended by the manufacturer.
■When washing the vehicle
When washing the vehicle using high pressure cleaning equipment, do not spray
water directly on the sensors. Subjecting the sensors to high pressure impact may
cause a malfunction.

179
2-5. Driving information
2
When driving
■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 instructions 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.
■Driving with snow chains
Observe the following precautions to reduce the risk of accidents. 
Failing to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used,
or 30 mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden turns and braking, as use of chains may adversely affect vehicle
handling.
●Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.

180
2-5. Driving information
NOTICE
■Repairing or replacing snow tires
Request repairs of and obtain replacement snow tires from Lexus dealers or legiti-
mate tire retailers. 
This is because the removal and attachment of snow tires affects the operation of
the tire pressure warning valves and transmitters.
■Fitting tire chains
The tire pressure warning valves and transmitters may not function correctly when
tire chains are fitted.

Maintenance and care4
351
4-1. Maintenance and care ........ 352Cleaning and protecting the 
vehicle exterior........................ 352
Cleaning and protecting the 
vehicle interior......................... 354 4-2. Maintenance........................... 357
Maintenance requirements............................ 357
General maintena nce ............. 359
Emission inspection and 
maintenance (I/M) 
programs ................................... 362
4-3. Do-it-yourself 
maintenance......................... 363
Do-it-yourself service 
precautions ............................... 363
Hood .............................................. 366
Positioning the jack .................. 367
Engine compartment .............. 369
Tires ................................................. 383
Tire inflation pressure .............. 393
Wheels .......................................... 397
Air conditioning filter .............. 399
Electronic key battery .............. 401
Checking and replacing 
fuses ............................................. 403
Headlight aim .............................. 419
Light bulbs...................................... 421

361
4-2. Maintenance
4
Maintenance and care
Vehicle exterior
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.

364
4-3. Do-it-yourself maintenance
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury.
■When working on the engine compartment:
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, inverter, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily , such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.
ItemsPa r t s a n d t o o l s
Engine oil level ( P. 3 7 1 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses ( P. 4 0 3 )• Fuse with same amperage rating as
original
Headlight aim ( P. 4 1 9 )• Phillips-head screwdriver
Radiator and condenser (P. 377)
Tire inflation pressure ( P. 393)• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 3 8 2 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

383
4-3. Do-it-yourself maintenance
4
Maintenance and care
Tires
Replace or rotate tires in accordance with maintenance schedule and
treadwear.
■Checking tires
New tread
Treadwear indicator
Worn tread
The location of treadwear indi-
cators is shown by the “TWI” or
“ ” marks, etc., molded on the
sidewall of each tire.
Check spare tire condition and
inflation pressure if not rotated.
■Tire rotation
Rotate the tires in the order
shown.
To equalize tire wear and extend
tire life, Lexus recommends that
tire rotation is carried out at the
same interval as tire inspection.
■The tire pressure warning system
Your Lexus is equipped with a tire pressure warning system that uses
tire pressure warning valves and tr ansmitters to detect low tire infla-
tion pressure before serious problems arise. ( P. 440, 445)
Front

384
4-3. Do-it-yourself maintenance
Installing tire pressure warning valves and transmittersWhen replacing tires or wheels, tire pressure warning valves and trans-
mitters must also be installed.
When new tire pressure warning va lves and transmitters are installed,
new tire pressure warning valve and transmitter ID codes must be regis-
tered in the tire pressure warning computer and tire pressure warning
system must be initialized. Have tire pressure warning valve and transmit-
ter ID code registered by your Lexus dealer. ( P. 386)
Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized in the following
circumstances:
● When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
● When changing the tire size.
When the tire pressure warning sys tem is initialized, the current tire
inflation pressure is set as the pressure benchmark.