inflation pressure Lexus GS350 2007 Anti-theft system / LEXUS 2007 GS430/350 OWNER'S MANUAL (OM30A04U)

TABLE OF CONTENTSIndex
iv
List of storage features................ 310
3-7. Other interior features............ 316 Sun visors.......................................... 316
Vanity mirror ................................... 317
Clock .................................................. 318
Outside temperature display ... 319
Ashtrays .......................................... 320
Cigarette lighter ............................ 321
Power outlet ................................... 322
Seat heaters .................................... 323
Seat heaters and ventilators .... 325
Armrest ............................................ 327
Rear sunshade .............................. 328
Floor mats....................................... 330
Trunk features................................. 331
Garage door opener .................. 334
Compass.......................................... 339
Lexus Link System ....................... 343
4-1. Maintenance and care............ 358 Cleaning and protecting the 
vehicle exterior ......................... 358
Cleaning and protecting the 
vehicle interior........................... 360
4-2. Maintenance ............................. 363 Maintenance requirements ..... 363
General maintenance ............... 365 Emission inspection and

maintenance (I/M) 
programs ..................................... 368
4-3. Do-it-yourself maintenance .. 369 Do-it-yourself service 
precautions .................................. 369
Hood.................................................. 372
Positioning the jack ..................... 373
Engine compartment.................. 375
Tires .................................................. 390
Tire inflation pressure................ 400
Wheels.............................................. 404
Air conditioning filter................. 406
Electronic key battery ............... 409
Checking and replacing 
fuses ................................................... 411
Headlight aim................................. 429
Light bulbs ........................................ 431
5-1. Essential information .............. 438 If your vehicle needs to be 
towed............................................. 438
If you think something is 
wrong ............................................. 445
Fuel pump shut off system ........ 446
Event data recorder .................... 447
5-2. Steps to take in an 
emergency ............................... 449
4Maintenance and care
5When trouble arises

vii
Tire
●Rotation
● Replacement
● Inflation pressure
● Information
P. 390
P. 473
P. 505
P. 511
Tail lights P. 116
Side marker light P. 116
Trunk P. 21
Rear window defogger P. 198
Door P. 17
Fuel filler door P. 49
Turn signal light P. 104
: If equipped

175
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
357
4-1. Maintenance and care ........ 358Cleaning and protecting the 
vehicle exterior....................... 358
Cleaning and protecting the 
vehicle interior........................ 360 4-2. Maintenance........................... 363
Maintenance requirements............................ 363
General maintena nce ............. 365
Emission inspection and 
maintenance (I/M) 
programs ................................... 368
4-3. Do-it-yourself 
maintenance......................... 369
Do-it-yourself service 
precautions ............................... 369
Hood .............................................. 372
Positioning the jack .................. 373
Engine compartment .............. 375
Tires ................................................. 390
Tire inflation pressure ............. 400
Wheels .......................................... 404
Air conditioning filter .............. 406
Electronic key battery ............. 409
Checking and replacing 
fuses ................................................ 411
Headlight aim ............................. 429
Light bulbs..................................... 431

367
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 damaged?
• Tires rotated according to the mainte-nance 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.

370
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 9 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses ( P. 4 1 3 )• Fuse with same amperage rating as
original
Headlight aim ( P. 4 3 5 )• Phillips-head screwdriver
Radiator and condenser (P. 3 8 5 )
Tire inflation pressure (P. 4 0 1 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 3 9 0 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

391
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 valv
es and transmitters are installed,
new tire pressure warning valve and transmitter ID codes must be regis-
tered in the tire pressure warning computer and tir
e pressure warning
system must be initialized. Have tire pressure warning valve and transmit -
ter ID code registered by your Lexus dealer. ( P. 394 )
Initializing the tire pressure warning system
■The tire pressure warning system must be initialized in the following
circumstances:
● When changing the tir
e inflation pressure by changing traveling
speed or load weight, etc.
● When changing the tir
e size.
When the tire pressure warning sys tem is initializ
ed, the current tire
inflation pressure is set as the pressure benchmark.

392
4-3. Do-it-yourself maintenance
■How to initialize the tire pressure warning system
Park the vehicle in safe place and turn the engine s
witch to “OFF”
mode.
While the vehicle is moving, initialization is not performed.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. ( P. 505 )
Make sure to adjust the tire pressure to the specified cold tire inflation
pressure level. The tire pressure warning system will operate based on
this pressure level.
Turn the engine switch to “IG-ON” mode.
Push and hold the tire pressure
w
arning reset switch until the tire
pressure warning light blinks
slowly three times and the mes -
sage “PRESSURE INITIAL”
appears on the multi-information
display

.
Wait for a few minutes with the “IG-ON” mode, and then turn
engine switch to the “OFF” mode.
STEP1
STEP2
STEP3
STEP4
STEP5

395
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Maximum load of tire
Check that the maximum load of the replaced tire is greater than 1 /2 of the Gross
Axle Weight Ratings (GAWR) of either the front axle or the rear axle, whichever is
greater. 
As for the maximum load of the tire, see the load limit at maximum cold tire inflation
pressure mentioned on the sidewall of the tire, and as for the Gross Axle Weight
Ratings (GAWR), see the Certification Label. (
P. 401, 511).
■Tire types
1 Summer tires
Summer tires are high-speed performance tires best suited to highway driving
under dry conditions. Since summer tires do not have the same traction perfor-
mance as snow tires, summer tires are in adequate for driving on snow-covered
or icy roads. For driving on snow-covered roads or icy roads, the use of snow tires
is recommended. When installing snow tires, be sure to replace all four tires.
2 All season tires All season tires are designed to provide better traction in snow and to be ade-
quate for driving in most winter conditions , as well as for use year round. All sea-
son tires, however, do not have adequate traction performance compared with
snow tires in heavy or loose snow. Also, al l season tires fall short in acceleration
and handling performance compared with summer tires in highway driving.
3Snow tires
For driving on snow-covered roads or icy roads, we recommend using snow tires.
If you need snow tires, select tires of the same size, construction and load capac-
ity as the originally installed tires. Since your vehicle has radial tires as original
equipment, make sure your snow tires also have radial construction. Do not install
studded tires without first checking loca l regulations for possible restriction.
Snow tires should be installed on all wheels. ( P. 1 7 2 )
■Initializing the tire pressure warning system
Initialize the tires with the tire inflatio n pressure adjusted to the specified level.

396
4-3. Do-it-yourself maintenance
■If you push the tire pressure warning reset switch accidentally
If initialization is performed, adjust the tire inflation pressure to the specified level
and initialize the system again.
■When the initialization of the tire pressure warning system has failed
Initialization can be completed in a few minutes. However, in the following cases,
the settings have not been recorded and the system will not operate properly. If
repeated attempts to record tire inflation pressure settings are unsuccessful, have
the vehicle inspected by your Lexus dealer.
●When operating the tire pressure warnin g reset switch, the tire pressure warn-
ing light does not flash 3 times and the setting message does not appear on the
multi-information display.
●After carrying out the initialization proc edure, the tire pressure warning light
blinks for 1 minute after driving for 20 minutes.
■Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation pressure
checks. Make sure to check tire inflation pressure as part of your routine of daily
vehicle checks.