tire pressure Lexus GS350 2008 Do-it-yourself maintenance / LEXUS 2008 GS460/350 OWNER'S MANUAL (OM30A87U)

TABLE OF CONTENTSIndex
4
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3-4. Using the hands-free system 
(for cellular phone)................. 291
Hands-free system 
(for cellular phone) .................... 291
Using the Bluetooth
® 
phone ............................................. 296
Setting the hands-free 
system ............................................... 311
3-5. Using the interior lights .......... 337 Interior lights list............................ 337
3-6. Using the storage features .... 340 List of storage fe atures.............. 340
3-7. Other interior features........... 347 Sun visors......................................... 347
Vanity mirror ................................. 348
Clock ................................................. 349
Outside temperature 
display ........................................... 350
Ashtrays ............................................ 351
Cigarette lighter ........................... 352
Power outlet .................................. 353
Seat heaters/vent ilators ............ 354
Armrest ........................................... 356
Rear sunshade ............................... 357
Floor mats....................................... 359
Trunk features............................... 360
Garage door opener .................. 363
Compass.......................................... 369
Lexus Link System ....................... 373 4-1. Maintenance and care........... 388
Cleaning and protecting 
the vehicle exterior.................. 388
Cleaning and protecting 
the vehicle interior ..................... 391
4-2. Maintenance.............................. 394 Maintenance requirements ..... 394
General maintenance ................ 396
Emission inspection and 
maintenance (I/M) 
programs ...................................... 399
4-3. Do-it-yourself 
maintenance........................... 400
Do-it-yourself service 
precautions ................................. 400
Hood................................................. 403
Positioning a floor jack............... 404
Engine compartment................. 406
Tires .................................................... 421
Tire inflation pressure.................. 431
Wheels.............................................. 435
Air conditioning filter.................. 437
Electronic key battery ................ 440
Checking and replacing 
fuses ................................................ 442
Headlight aim................................. 467
Light bulbs ....................................... 470
4Maintenance and care

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Tire
●Rotation
● Replacement
● Inflation pressure
● Information
P. 421
P. 512
P. 550
P. 556
Tail lights P. 142
Side marker light P. 142
Trunk P. 42
Rear window defogger P. 225
Door P. 37
Fuel filler door P. 70
Turn signal light P. 130
: If equipped

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2-4. Using other driving systems
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NOTICE
■When using the 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.

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2-5. Driving information
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■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 only. Do not install tire chains on front 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.
●Use snow tires on all, not just some 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.

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2-5. Driving information
2
When driving
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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
387
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4-1. Maintenance and 
care .............................. 388
Cleaning and protecting 
the vehicle exterior............ 388
Cleaning and protecting 
the vehicle interior ............... 391 4-2. Maintenance .................. 394
Maintenance 
requirements........................ 394
General maintenance .......... 396
Emission inspection and 
maintenance (I/M) 
programs ............................... 399
4-3. Do-it-yourself 
maintenance ................ 400
Do-it-yourself service 
precautions ........................... 400
Hood .......................................... 403
Positioning a floor jack ......... 404
Engine compartment ........... 406
Tires............................................. 421
Tire inflation pressure............ 431
Wheels ...................................... 435
Air conditioning filter ........... 437
Electronic key battery.......... 440
Checking and replacing 
fuses ........................................ 442
Headlight aim .......................... 467
Light bulbs ................................ 470

398
4-2. Maintenance
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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 engine is running
Turn off the engine and ensure that there is adequate ventilation before performing
maintenance checks.

401
4-3. Do-it-yourself maintenance
4
Maintenance and care
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ItemsPa r t s a n d t o o l s
Engine oil level (P. 4 0 9 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses ( P. 4 4 2 )• Fuse with same amperage rating as
original
Headlight aim ( P. 4 6 7 )• Phillips-head screwdriver
Radiator and condenser (P. 4 1 5 )
Tire inflation pressure (P. 4 3 1 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 4 2 0 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

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4-3. Do-it-yourself maintenance
4
Maintenance and care
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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. 490, 498)
Front

422
4-3. Do-it-yourself maintenance
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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 codes registered by your Lexus dealer. ( P. 4 2 4 )
Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized in the following
circumstances:
● When rotating the tires on vehicles differing with front and rear tire
inflation pressures.
● When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
When the tire pressure warning sys tem is initialized, the current tire
inflation pressure is set as the pressure benchmark.