tire Lexus IS250 2010 Owner's Guide

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3-7. Other interior features
3
Interior features
IS350/250_U
Erasing the entire HomeLink memory (all three programs)Press and hold the 2 outside but-
tons for 10 seconds until the indi-
cator light flashes.
If you sell your vehicle, be sure to
erase the programs stored in the
HomeLink
 memory.
■Before programming
●Install a new battery in the remote control transmitter.
●The battery side of the remote control transmitter must be pointed away from
the HomeLink button.
■Certification for the garage door openerFor vehicles sold in the U.S.A.
FCC ID: NZLWZLHL4
NOTE:
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
For vehicles sold in Canada
NOTE:
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
■When support is necessary
Visit on the web at www.homelink.com
or call 1-800-355-3515.

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3-7. Other interior features
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Interior features
IS350/250_U■
Stolen Vehicle Location
If your vehicle is stolen, Safety Connect can work with local authorities
to assist them in locating and recovering the vehicle. After filing a
police report, call the Safety Connect response center at 1-800-25-
LEXUS (1-800-255-3987) and follow the prompts for Safety Con-
nect to initiate this service.
In addition to assisting law enforcement with recovery of a stolen vehi-
cle, Safety-Connect-equipped vehicle location data may, under cer-
tain circumstances, be shared with third parties to locate your vehicle.
Further information is available at Lexus.com.
■ Emergency Assistance Button (“SOS”)
In the event of an emergency on the road, push the “SOS” button to
reach the Safety Connect response center. The answering agent will
determine your vehicle’s location, assess the emergency, and dispatch
the necessary assistance required.
If you accidentally press the “SOS” button, tell the response-center agent
that you are not experiencing an emergency.
■Enhanced Roadsi de Assistance
Enhanced Roadside Assistance adds GPS data to the already
included warranty-based Lexus road side service.
Subscribers can press the “SOS” button to reach a Safety Connect
response-center agent, who can help with a wide range of needs, such
as: towing, flat tire, fuel delivery, etc. For a description of the Enhanced
Roadside Assistance services and their limitations, please see the
Safety Connect Terms and Conditions, which are available at
Lexus.com.

Maintenance and care4
381
IS350/250_U
4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 382
Cleaning and protecting the vehicle interior ............. 385
4-2. Maintenance Maintenance requirements ....................... 388
General maintenance ......... 390
Emission inspection and maintenance (I/M)
programs................................ 393 4-3. Do-it-yourself
maintenance
Do-it-yourself service precautions ........................... 394
Hood .......................................... 397
Positioning a floor jack ......... 398
Engine compartment ........... 400
Tires............................................. 414
Tire inflation pressure........... 425
Wheels ...................................... 429
Air conditioning filter ............ 431
Electronic key battery.......... 434
Checking and replacing fuses ........................................ 436
Headlight aim ......................... 450
Light bulbs................................ 452

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4-2. Maintenance
IS350/250_U
Vehicle exterior
ItemsCheck points
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.

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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. 4 0 3 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (→ P. 4 3 6 )• Fuse with same amperage rating as
original
Tire inflation pressure ( →P. 4 2 5 )• Tire pressure gauge
• Compressed air source
Headlight aim ( →P. 4 5 0 )• Phillips-head screwdriver
Radiator and condenser
(→ P. 4 0 8 )
Wa s h e r f l u i d ( →P. 4 1 3 )
• 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

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4-3. Do-it-yourself maintenance
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Maintenance and care
IS350/250_U
Directional tiresTire direction marks
The tire sidewalls are marked with
arrows indicating the rolling direc-
tion of the tire. If mounted on the
wrong side of the vehicle, direc-
tional tires will perform poorly.
2WD models with directional 17-inch tires or 18-inch tires
Tires cannot be rotated.
■ 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. 473, 481)

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4-3. Do-it-yourself maintenance
IS350/250_U
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. 4 1 8 )
Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized in the following
circumstances:
● When rotating the tires on vehicles differing with front and rear tire
inflation pressures.
● When changing the tire inflation pressure by changing traveling
speed.
● When changing the tire size.
When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the pressure benchmark.

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4-3. Do-it-yourself maintenance
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Maintenance and care
IS350/250_U■
How to initialize the tire pressure warning system
To initialize the system, use the satellite switch. ( →P. 3 4 2 )
Park the vehicle in safe place and turn the “ENGINE START
STOP” switch OFF.
While the vehicle is moving, initialization is not performed.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. (→ P. 5 2 8 )
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.
The tire inflation pressure initial-
ization setting display
Continue to press “<” or “>” until
the initialization setting display
appears.
Recording tire inflation pressure
settings
Push and hold the “ON/OFF” but-
ton until the tire pressure warning
light blinks slowly three times.
Wait for a few minutes with the IGNITION ON mode, and then
turn the “ENGINE START STOP” switch OFF.
STEP1
STEP2
STEP3
STEP4
STEP5

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4-3. Do-it-yourself maintenance
IS350/250_U
Registering and selecting ID codesTo select tire pressure warning valve and transmitter ID codes, use the
satellite switch. ( →P. 3 4 2 )
■ Registering ID codes
2 sets of tire pressure warning valve and transmitter ID codes can be
registered. Once a second set of tires 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 ID 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.