inflation pressure Lexus IS F 2011 Using The Bluetooth Audio System /

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4-1. Maintenance and careCleaning and protecting the vehicle exterior................... 366
Cleaning and protecting the vehicle interior .................... 369
4-2. Maintenance Maintenance requ irements ..... 372
General maintenance ................ 374
Emission inspection and maintenance (I/M)
programs ...................................... 377
4-3. Do-it-yourself maintenance Do-it-yourself service precautions .................................. 378
Hood................................................... 381
Positioning a floor jack.............. 382
Engine compartment................. 384
Tires ................................................... 397
Tire inflation pressure................ 408
Wheels............................................... 412
Air conditioning filter................... 414
Electronic key battery ................. 417
Checking and replacing fuses ................................................. 419
Headlight aim ................................ 433
Light bulbs ....................................... 435 5-1. Essential information
Emergency flashers .................... 442
If your vehicle needs to be towed ............................................. 443
If you think something is wrong ............................................. 449
Fuel pump shut off system ....... 450
Event data recorder..................... 451
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... ........................................ 453
If a warning message is displayed....................................... 463
If you have a flat tire..................... 477
If the engine will not start .......... 486
If the shift lever cannot be shifted from P .............................. 487
If you lose your keys ................... 488
If the electronic key does not operate prop erly .............. 489
If the vehicle battery is discharged ................................... 492
If your vehicle ov erheats ........... 495
If the vehicle becomes stuck............................................... 498
If your vehicle has to be stopped in an
emergency ................................... 499
4Maintenance and care5When trouble arises

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Rear window defogger *2P. 218
Tires
●Replacement
● Inflation pressure
● Information
P. 477
P. 511
P. 516
Tail lights P. 158
Side marker lights P. 158
Trunk P. 46Doors P. 42
Fuel filler door P. 80
Rear turn signal lights
P. 143
: If equipped
*2: For vehicles with a navigation system, refe r to the “Navigation System Owner’s Manual”.

Maintenance and care4
365
4-1. Maintenance and careCleaning and protecting the vehicle exterior............. 366
Cleaning and protecting the vehicle interior .............. 369
4-2. Maintenance Maintenance requirements ........................ 372
General maintenance .......... 374
Emission inspection and maintenance (I/M)
programs................................ 377 4-3. Do-it-yourself
maintenance
Do-it-yourself service precautions ........................... 378
Hood ........................................... 381
Positioning a floor jack ......... 382
Engine compartment ........... 384
Tires............................................ 397
Tire inflation pressure........... 408
Wheels ....................................... 412
Air conditioning filter ............ 414
Electronic key battery............ 417
Checking and replacing fuses ......................................... 419
Headlight aim ......................... 433
Light bulbs ................................ 435

376
4-2. Maintenance
Vehicle exterior
Steering wheel
• Moves smoothly?
• Has correct free play?
• No strange noises?
ItemsCheck points
Door/trunk• Operates 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?
• Wheel nuts are not loose?
CAUTION
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation before performing
maintenance checks.
ItemsCheck points

379
4-3. Do-it-yourself maintenance
4
Maintenance and care
ItemsPa r t s a n d t o o l s
Engine oil level (P. 3 8 6 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used only for adding engine oil)
Fuses ( P. 4 1 9 )• Fuse with same amperage rating as
original
Headlight aim ( P. 4 3 3 )• Phillips-head screwdriver
Radiator and condenser (P. 3 9 1 )
Tire inflation pressure ( P. 4 0 8 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 396)
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

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4-3. Do-it-yourself maintenance
4
Maintenance and care
Tires
Installing tire inflation 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 co mputer and the tire pressure warning
system must be initialized. Have tire pressure warning valve and transmit-
ter ID codes registered by your Lexus dealer. ( P. 400)
Replace tires in accordance with maintenance schedules and tread wear.
■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.
■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. 4 5 6 , 4 6 5 )

398
4-3. Do-it-yourself maintenance
Initializing the tire pressure warning system■ The tire pressure warning system must be initialized when the tire
inflation pressure is changed (such as when changing traveling
speed.)
When the tire pressure warning sy stem is initialized, the current tire
inflation pressure is set as the benchmark pressure.
■ How to initialize the tire pressure warning system
To initialize the system, use the satellite switch. ( P. 3 3 2 )
Park the vehicle in safe plac e and turn the “ENGINE START
STOP” switch to OFF.
While the vehicle is moving, initialization is not performed.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. ( P. 511)
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 START STOP” switch to IGNITION ON
mode.
STEP1
STEP2
STEP3

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4-3. Do-it-yourself maintenance
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Maintenance and care
The tire inflation pressure initial-
ization setting display
Continue to press “” or “” until
the initialization setting display
appears.
It may take several minutes to com-
plete the setting. Wait for several
minutes before turning the
“ENGINE START STOP” switch to
OFF if necessary.
Recording tire inflation pressure
settings
Press and hold the “ON/OFF” but-
ton until the tire pressure warning
light blinks slowly 3 times to indi-
cate that the initial setting is com-
plete.
Wait for a few minutes with the IGNITION ON mode, and then
turn the “ENGINE START STOP” switch to OFF.
STEP4
STEP5

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4-3. Do-it-yourself maintenance
■Maximum load of tire
Check that the maximum load of the replacement tire is greater than 1 /2 of the
Gross Axle Weight Ratings (GAWR) of either the front axle or the rear axle, which-
ever is greater.
■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 inadequate 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 adequa te traction performance compared with
snow tires in heavy or loos e snow. Also, all 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 ic y 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. 2 0 4 )
For the GAWR, see the Certification Label.
For the maximum load of the tire, see the load
limit at maximum cold tire inflation pressure
mentioned on the sidewall of the tire.
( P. 5 1 6 )

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4-3. Do-it-yourself maintenance
4
Maintenance and care
■Initializing the tire pressure warning system
Initialize the tires with the tire inflation pressure adjusted to the specified level.
■If you push the tire pressure warning reset switch accidentally
If initialization is performed, adjust the ti re inflation pressure to the specified level
and initialize the tire pressure warning 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 initia lization procedure, the tire pressure warning light
blinks for 1 minute then stays on after driving for about 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.