tire pressure Lexus GX470 2008 Owner's Manual

TABLE OF CONTENTSIndex
4
Using the DVD player (MP3 discs) ................................. 246
Using the video mode ............... 248
Changing the initial setting ...... 249
3-4. Using the interior lights .......... 256 Interior lights list............................ 256
3-5. Using the storage features .... 259 List of storage features............... 259
3-6. Other interior features........... 264 Sun visors......................................... 264
Vanity mirror .................................. 265
Clock ................................................. 266
Outside temperature display ........................................... 268
Ashtrays ........................................... 269
Cigarette lighter ............................ 271
Power outlet ................................... 272
Seat heaters.................................... 274
Armrest ............................................ 276
Floor mats........................................ 277
Luggage compartment features .......................................... 278
Garage door opener................... 281
Compass......................................... 286
Lexus Link System ...................... 290 4-1. Maintenance and care............ 306
Cleaning and protecting the vehicle exterior ......................... 306
Cleaning and protecting the vehicle interior........................... 308
4-2. Maintenance................................ 311 Maintenance requirements ........ 311
General maintenance ................. 313
Emission inspection and maintenance (I/M)
programs ....................................... 316
4-3. Do-it-yourself maintenance............................. 317
Do-it-yourself service precautions ................................... 317
Hood................................................. 320
Engine compartment................... 321
Tires ................................................... 336
Tire inflation pressure................. 343
Wheels.............................................. 347
Air conditioning filter.................. 349
Wireless remote control battery............................................. 351
Rear seat entertainment system controller...................... 353
Checking and replacing fuses ............................................... 355
Light bulbs ....................................... 365
4Maintenance and care

7
Tire
●Rotation
● Replacement
● Inflation pressure
● Information
P. 336
P. 391
P. 419
P. 424
Tail lights P. 135
Side marker light P. 135
Back door P. 31
Rear window defogger

P. 199
Door P. 26
Fuel filler door P. 67
Turn signal light P. 124

178
2-5. Driving information
■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 in accordance with 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.

179
2-5. Driving information
2
When driving
NOTICE
■Repairing or replacing snow tires
Request repairs of and obtain replacement snow tires from Lexus dealer.
This is because the removal and attachment of snow tires affects the operation of
the tire pressure warning valves and transmitters.
■When jacking up or installing tire chains
Be sure to turn off the rear height control air suspension and stop the engine.
Otherwise, the vehicle height may change because of the automatic leveling func-
tion, resulting in an accident.
■Fitting tire chains
The tire pressure warning valves and transmitters may not function correctly when
tire chains are fitted.

Maintenance and care4
305
4-1. Maintenance and care ............................... 306
Cleaning and protecting the vehicle exterior .................... 306
Cleaning and protecting the vehicle interior .................... 308 4-2. Maintenance .................... 311
Maintenance requirements.......................... 311
General maintenance ........... 313
Emission inspection and maintenance (I/M)
programs ................................ 316
4-3. Do-it-yourself maintenance ................. 317
Do-it-yourself service precautions ............................ 317
Hood .......................................... 320
Engine compartment ............ 321
Tires............................................ 336
Tire inflation pressure........... 343
Wheels ...................................... 347
Air conditioning filter ........... 349
Wireless remote control battery ..................................... 351
Rear seat entertainment system controller ................ 353
Checking and replacing fuses ........................................ 355
Light bulbs................................ 365

315
4-2. Maintenance
4
Maintenance and care
Vehicle exterior
ItemsCheck points
Doors• 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.

318
4-3. Do-it-yourself maintenance
ItemsParts and tools
Engine oil level (→P. 3 2 3 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (→ P. 3 5 5 )• Fuse with same amperage rating as
original
Power steering fluid level ( →P. 3 3 1 )
• Automatic transmission fluid
DEXRON® II or III
•Rag or paper towel
• Clean funnel
Radiator and condenser ( →P. 3 2 9 )
Tire inflation pressure ( →P. 3 4 3 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( →P. 335)
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

336
4-3. Do-it-yourself maintenance
Tires
Replace or rotate tires in accordance with maintenance schedules 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.
Lexus recommends tire rotation
in accordance with the mainte-
nance schedule to equalize tire
wear and extend tire life.
■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. 385)
Front

337
4-3. Do-it-yourself maintenance
4
Maintenance and care
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.
Registering and se lecting ID codes
■ Registering ID codes
2 sets of tire pressure warning valve and transmitter ID codes can be
registered. Once a second set of tires (winter tires etc.) is registered at
“2nd”, you can switch between tire set settings simply by pressing the
tire pressure warning select switch.
There are 2 settings:
“MAIN” position: The ID code of the tire pressure warning valve and
transmitter on the tires originally installed on the vehicle is registered.
“2nd” position: The code is not registered. When you replace a new set
of tires, purchase tire pressure warning valves and transmitters from
your Lexus dealer and have the new ID code registered by your Lexus
dealer.

338
4-3. Do-it-yourself maintenance
■Selecting ID codes
When replacing tires, make sure to select the ID code set that matches
the new tire set. If the tire pressure select switch is set to the wrong set-
ting, the tire pressure warning system will not operate properly. After
driving for about 20 minutes, the tire pressure warning light comes on
after blinking for 1 minute to indicate a system malfunction.
“MAIN”
“2nd”
■When to replace your vehicle’s tires
Tires should be replaced if:
●You have tire damage such as cuts, splits, cracks deep enough to expose the
fabric or bulges indicating internal damage
●A tire goes flat repeatedly or cannot be properly repaired due to the size or
location of a cut or other damage
If you are not sure, consult with your Lexus dealer.