tire pressure Lexus IS250 2011 Owner's Manual

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IS350/250_U
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3-6. Using the storage featuresList of storage features................ 319
• Glove box ................................... 320
• Console boxes .......................... 320
• Overhead console ................... 322
• Cup holders................................. 322
•Bottle holders/door pockets ............................... 324
• Auxiliary box ............................... 325
3-7. Other interior features Sun visors......................................... 326
Vanity mirrors................................ 327
Clock ................................................ 328
Satellite switches .......................... 329
Ashtrays ........................................... 332
Cigarette lighter ........................... 333
Power outlet ................................... 334
Seat heaters................................... 335
Seat heaters and ventilators .................................... 338
Armrest ............................................. 341
Rear sunshade ............................... 342
Trunk storage extension ........... 344
Coat hooks ..................................... 345
Floor mat.......................................... 346
Trunk features................................ 347
Garage door opener................. 350
Compass.......................................... 356
Safety Connect ............................ 360 4-1. Maintenance and care
Cleaning and protecting the vehicle exterior.................. 368
Cleaning and protecting the vehicle interior ..................... 371
4-2. Maintenance Maintenance requirements............................... 374
General maintenance ................ 376
Emission inspection and maintenance (I/M)
programs ...................................... 379
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................. 380
Hood ................................................ 383
Positioning a floor jack.............. 384
Engine compartment................. 386
Tires .................................................. 400
Tire inflation pressure.................. 412
Wheels .............................................. 416
Air conditioning filter................... 418
Electronic key battery ................. 421
Checking and replacing fuses ................................................ 423
Headlight aim ................................ 437
Light bulbs....................................... 439
4Maintenance and care

IS350/250_U
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Tires
●Rotation
● Replacement
● Inflation pressure
● Information
P. 400
P. 481
P. 519
P. 528
Tail lights P. 165
Side marker lights P. 165
Trunk P. 47
Rear window defogger *1P. 214
Doors P. 43
Fuel filler door P. 82
Turn signal lights P. 147
∗: If equipped
*1: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

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2-4. Using other driving systems
IS350/250_U
CAUTION
■TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRAC system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
■If hill-start assist control does not operate effectively
(vehicles with an automatic transmission)
Do not overly rely on the hill-start assist control. The hill-start assist control may not
operate effectively on steep inclines and roads covered in ice.
■When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause
an accident. Exercise particular care when the indicator light flashes.
■When TRAC and VSC are off
Be especially careful and drive at a speed appropriate to the road conditions. As
these are systems to ensure vehicle stability and driving force, do not turn off TRAC
and VSC unless necessary.
■Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire
pressure level.
The ABS, VSC and TRAC systems will not function correctly if different tires are fit-
ted on the vehicle.
Contact your Lexus dealer for further information when replacing tires or wheels.
■Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect the driv-
ing assist systems, and may cause the system to malfunction.

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2-5. Driving information
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When driving
IS350/250_U
■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 the tire chains on rear tires as tightly as possible. Retighten chains after
driving 1 /4 - 1 /2 mile (0.5 - 1.0 km).
●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 recommended level of air 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 tire 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
IS350/250_U
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 system.
■Fitting tire chains
The tire pressure warning system may not function correctly when tire chains are fit-
ted.

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3-7. Other interior features
IS350/250_U
Change the settings.
Press the “ON/OFF” button to
change the settings (e.g. on/off).
■Items that can be set us ing the satellite switches
STEP3
Intuitive parking assist ( →P. 179) on/off (if
equipped)
Tire pressure warning system initialization
(→ P. 4 0 2 )
ID code selection for the tire pressure warning
system ( →P. 404)
Vehicle speed indicator on/off and speed setting
(→ P. 153)
Tacho indicator on/off and engine speed (rpm)
setting ( →P. 153)

Maintenance and care4
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IS350/250_U
4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 368
Cleaning and protecting the vehicle interior ............... 371
4-2. Maintenance Maintenance requirements ........................ 374
General maintenance .......... 376
Emission inspection and maintenance (I/M)
programs................................ 379 4-3. Do-it-yourself
maintenance
Do-it-yourself service precautions ........................... 380
Hood .......................................... 383
Positioning a floor jack ......... 384
Engine compartment ........... 386
Tires............................................ 400
Tire inflation pressure............ 412
Wheels ....................................... 416
Air conditioning filter ............ 418
Electronic key battery........... 421
Checking and replacing fuses ........................................ 423
Headlight aim ......................... 437
Light bulbs................................ 439

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4-2. Maintenance
IS350/250_U
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?
• Tires rotated according to the maintenance schedule?
• 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

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4-3. Do-it-yourself maintenance
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Maintenance and care
IS350/250_U
ItemsParts and tools
Engine oil level (→P. 3 8 9 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (→ P. 4 2 3 )• Fuse with same amperage rating as
original
Tire inflation pressure ( →P. 4 1 2 )• Tire pressure gauge
• Compressed air source
Headlight aim ( →P. 4 3 7 )• Phillips-head screwdriver
Radiator and condenser
(→ P. 3 9 4 )
Wa s h e r f l u i d ( →P. 399)
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

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4-3. Do-it-yourself maintenance
IS350/250_U
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
pressure if not rotated.
■ Tire rotation
2WD models with 16-inch tires or AWD models
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.
Do not fail to initialize the tire
pressure warning system after
tire rotation.
2WD models with non-directional 17-inch tires or 18-inch tiresRotate 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.
Front
Front