2010 Lexus GS350 inflation pressure

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GS_G_U (OM30C80U)
June 29, 2011 10:30 am
4-1. Maintenance and care
Cleaning and protecting 
the vehicle exterior.................. 430
Cleaning and protecting 
the vehicle interior .................... 433
4-2. Maintenance
Maintenance 
requirements............................... 436
General maintenance ............... 438
Emission inspection and 
maintenance (I/M) 
programs ....................................... 4414-3. Do-it-yourself maintenance
Do-it-yourself service 
precautions .................................. 442
Hood ................................................. 445
Positioning a floor jack............... 446
Engine compartment.................. 448
Tires ................................................... 463
Tire inflation pressure................. 473
Wheels ............................................. 477
Air conditioning filter.................. 479
Electronic key battery ................ 482
Checking and replacing 
fuses ................................................ 484
Headlight aim ............................... 509
Light bulbs ........................................ 512
5-1. Essential information
Emergency flashers ................... 520
If your vehicle needs 
to be towed ................................... 521
If you think something is 
wrong ............................................ 530
Fuel pump shut off system ......... 531
Event data recorder.................... 532
4Maintenance and care
5When trouble arises

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GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Tire
●Rotation
●Replacement
●Inflation pressure
●Information
P. 463
P. 556
P. 598
P. 604
Tail lights P. 157
Side marker light P. 157
Trunk P. 48
Rear window defogger P. 255
Door P. 43
Fuel filler door P. 82
Turn signal light P. 144
: If equipped

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2-5. Driving information
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■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.

Maintenance and care4
429
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
4-1. Maintenance and care
Cleaning and protecting 
the vehicle exterior............ 430
Cleaning and protecting 
the vehicle interior .............. 4334-2. Maintenance
Maintenance 
requirements........................ 436
General maintenance .......... 438
Emission inspection and 
maintenance (I/M) 
programs ................................ 441
4-3. Do-it-yourself maintenance
Do-it-yourself service 
precautions ........................... 442
Hood .......................................... 445
Positioning a floor jack ......... 446
Engine compartment ........... 448
Tires............................................ 463
Tire inflation pressure........... 473
Wheels ....................................... 477
Air conditioning filter ............ 479
Electronic key battery.......... 482
Checking and replacing 
fuses ........................................ 484
Headlight aim ......................... 509
Light bulbs ................................. 512

440
4-2. Maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
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.

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4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
ItemsPa r t s a n d t o o l s
Engine oil level (P. 4 5 1 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (P. 484)• Fuse with same amperage rating as
original
Headlight aim (P. 5 0 9 )• Phillips-head screwdriver
Radiator and condenser (P. 4 5 7 )
Tire inflation pressure (P. 4 7 3 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d (P. 4 6 2 )
• Water or washer fluid containing
antifreeze (for winter use)
•Funnel

463
4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Tires
Replace the tires when the treadwear indicators show.
■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 transmitters to detect low tire infla-
tion pressure before serious problems arise. (P. 5 3 7 )
Front

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4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and trans-
mitters must also be installed.
When new tire pressure warning valves 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. 466)
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 system is initialized, the current tire
inflation pressure is set as the pressure benchmark.