key Lexus IS250 2006 Do-it-yourself maintenance / LEXUS 2006 IS350/250 THROUGH APRIL 2006 PROD. OWNER'S MANUAL (OM53508U)

TABLE OF CONTENTSIndex
1-1. Key information .............................. 2Keys ......................................................... 2
1-2. Opening, closing and locking the doors and trunk ..................... 4
Smart access system with push-button start ............................. 4
Wireless remote control ............... 12
Doors..................................................... 15
Trunk...................................................... 19
1-3. Adjustable components ............ 22 Front seats .......................................... 22
Driving position memory ............. 24
Seat position memory ................... 27
Head restraints................................. 29
Seat belts ........................................... 30
Steering wheel (manually adjustable type) ....... 36
Steering wheel (power-adjustable type)............ 37
Anti-glare inside rear view mirror ............................................... 38
Outside rear view mirrors ........... 39
1-4. Opening and closing the windows and moon roof ........... 41
Power windows................................. 41
Moon roof .......................................... 44 1-5. Refueling ........................................ 47
Opening the fuel tank cap........... 47
1-6. Anti-theft system ........................ 50 Engine immobilizer system ........ 50
Alarm.................................................... 52
Theft prevention labels (U.S.A.) ............................................. 54
1-7. Safety information ....................... 55 Correct driving posture ............... 55
SRS airbags ....................................... 57
Child restraint sy stems ................. 68
Installing child restraints ................. 71
2-1. Driving procedures.................... 82 Driving the vehicle .......................... 82
Starting the engine ......................... 89
Automatic Transmission .............. 92
Manual Transmission..................... 96
Turn signal lever............................... 98
Parking brake ................................... 99
2-2. Instrument cluster ..................... 100 Gauges and meters ..................... 100
Indicators and warning lights................................................. 106
Multi-information display........... 109
1Before driving
2When driving

TABLE OF CONTENTSIndex
• Bottle holders/door pockets ......................................... 209
3-5. Other interior features............. 211 Sun visors............................................ 211
Vanity mirror ................................... 212
Clock .................................................. 213
Satellite switch es ........................... 214
Ashtrays ............................................ 217
Cigarette lighter ............................ 218
Power outlet .................................... 219
Seat heaters .................................... 220
Seat heaters and ve ntilators .... 222
Armrest ............................................ 224
Rear sunshade ............................... 225
Extended trunk.............................. 227
Coat hooks ..................................... 228
Floor mat.......................................... 229
Trunk features............................... 230
Garage door opener .................. 233
Compass......................................... 238
4-1. Maintenance and care............ 244 Cleaning and protecting the vehicle exterior................... 244
Cleaning and protecting the vehicle interior .................... 246 4-2. Maintenance.............................. 249
Maintenance requirements ..... 249
General maintena nce ................. 251
Emission inspection and maintenance (I/M)
programs ...................................... 254
4-3. Do-it-yourself maintenance............................ 255
Do-it-yourself service precautions .................................. 255
Hood................................................. 258
Positioning the jack ..................... 259
Engine compartment................... 261
Tires ................................................... 275
Tire inflation pressure................ 285
Wheels............................................. 289
Air conditioning filter................... 291
Electronic key battery ................ 293
Checking and replacing fuses ................................................ 295
Headlight aim................................ 309
Light bulbs ........................................ 310
5-1. Essential information ................ 318 If your vehicle needs to be towed ........................................ 318
If you think something is wrong ............................................. 325
4Maintenance and care
5When trouble arises

1
2
3
4
5
6
7
Fuel pump shut off system ........ 326
Event data recorder .................... 327
5-2. Steps to take in an emergency .............................. 329
If a warning light turns on or a warning buzzer sounds... .... 329
If a warning message is displayed ....................................... 334
If you have a flat tire.................... 348
If the engine will not start .......... 356
If the shift lever cannot be shifted from P .............................. 357
If you lose your keys ................... 358
When the electronic key battery is discharged ............... 359
If the vehicle battery is discharged ................................... 362
If your vehicle overheats ........... 365
If the vehicle becomes stuck................................................ 367
6-1. Specifications............................ 370 Maintenance data ........................ 370
Fuel information ........................... 384
Tire information............................. 387
6-2. Customization .......................... 395 Customizable features .............. 395 6-3. Initialization ............................... 399
Items to initialize ........................... 399
Reporting safety defects for U.S.A. owners ...................... 402
Alphabetical index.............................. 404
What to do if... ........................................ 413
6Vehicle specifications
7For US owners
Index

Before driving1
1
1-1. Key information............................ 2Keys....................................................... 2
1-2. Opening, closing and locking the doors and trunk................... 4
Smart access system with push-button start .......................... 4
Wireless remote control............. 12
Doors.................................................. 15
Trunk ................................................... 19
1-3. Adjustable components .......... 22 Front seats ....................................... 22
Driving position memory .......... 24
Seat position memory ................ 27
Head restraints.............................. 29
Seat belts ......................................... 30
Steering wheel (manually adjustable type) .... 36
Steering wheel (power-adjustable type) ......... 37
Anti-glare inside rear view mirror ............................................. 38
Outside rear view mirrors ........ 39 1-4. Opening and closing the
windows and moon roof ........ 41
Power windows ............................... 41
Moon roof ....................................... 44
1-5. Refueling ..................................... 47 Opening the fuel tank cap ........ 47
1-6. Anti-theft system ...................... 50 Engine immobilizer system ...... 50
Alarm ................................................ 52
Theft prevention labels (U.S.A.) .......................................... 54
1-7. Safety information .................... 55 Correct driving posture ............ 55
SRS airbags .................................... 57
Child restraint systems .............. 68
Installing child restraints .............. 71

2
1-1. Key information
Keys
Using the mechanical keyTake out the mechanical key.
The following keys are provided with the vehicle.
Electronic keys
• Operating the smart accesssystem with push-button start
( P. 4 )
• Operating the wireless remote control function
( P. 1 2 )
Mechanical keys
Key number plate
■When required to leave a key to the vehicle with a parking attendant
Turn the trunk opener main switch OFF an d lock the glove box as circumstances
demand. ( P. 1 9 , 2 0 5 )
Remove the mechanical key for your own use and provide the attendant with the
electronic key only.
■Key number plate
Keep the plate in a safe place such as your wallet, not in the vehicle. In the event that
a mechanical key is lost, a new key can be made at your Lexus dealer using the key
number plate. ( P. 3 5 8 )

3
1-1. Key information
1
Before driving
NOTICE
■To prevent key damage
●Do not subject the keys to strong shocks, expose them to high temperatures by
placing them in direct sunlight, or get them wet.
●Do not expose the keys to electromagneti c materials or attach any material that
blocks electromagnetic waves to the key surface.

4
1-2. Opening, closing and locking the doors and trunk
Smart access system with push-button start
The following operations can be performed simply by carrying the elec-
tronic key, for example in your pocket.
Locks and unlocks the doors (P. 5)
Unlocks the trunk ( P. 5)
Starts and stops the engine ( P. 8 9 )

6
1-2. Opening, closing and locking the doors and trunk
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have
been locked/unlocked. (Locked: Once; Unlocked: Twice)
■Conditions affecting operation
The smart access system with push-button start and wireless remote control func-
tion may not operate normally in the following situations.
●Near a TV tower, radio station, electric power plant, airport or other facility that
generates strong radio waves
●When carrying a portable radio, cellular phone or other wireless communica-
tion device
●When multiple electronic keys are in the vicinity
●When the electronic key has come into contact with, or is covered by a metallic
object
●When a wireless key (that emits radio waves) is being used nearby
●When the electronic key has been left ne ar an electrical appliance such as a
personal computer
■Switching the door unlock function
It is possible to set which doors the entry function unlocks.
Turn the engine switch OFF.
When the indicator on the key surface is turned off, push and
hold , , or for approximately 5 seconds while pushing
the button on the key.
STEP1
STEP2

7
1-2. Opening, closing and locking the doors and trunk
1
Before driving
The setting changes each time an operation is performed, as shown below. (Wait for
at least 5 seconds after each operation to continue an operation.)
■Battery-saving function
In the following circumstances, the entry func tion is disabled in order to prevent the
vehicle and electronic key batteries from discharging.
●When the entry function has not been used for 2 weeks or more
●When the electronic key has been left within approximately 3 ft. (1 m) of the
vehicle for 10 minutes or more
The system will resume operation when...
●The vehicle is locked using the door handle lock switch
●The vehicle is locked/unlocked using the wireless remote control function
( P. 1 2 )
●The vehicle is locked/unlocked using the mechanical key ( P. 3 5 9 )
Multi-information
displayUnlocking doorsBeep
Hold the driver's door handle
to unlock only the driver's
door.
Exterior: Beeps three
times
Interior: Pings once
Hold the front passenger’s
door handle to unlock all
doors
Hold either front door handle
to unlock all doorsExterior: Beeps twice
Interior: Pings once

8
1-2. Opening, closing and locking the doors and trunk
■Electronic key battery depletion
●The standard battery life is 1 to 2 years. (The battery becomes depleted even if
the electronic key is not used.) If the smart access system with push-button start
or the wireless remote control function does not operate, or the detection area
becomes smaller, the battery may be depleted. Replace the battery when nec-
essary. (  P. 2 9 3 )
●To avoid serious deterioration, do not leave the electronic key within 3 ft. (1 m) of
the following electrical appliances.
•TVs
• Personal computers
• Recharging cellular phones or cordless phones
• Table lamps
■To operate the system properly
Make sure to carry the electronic key wh en operating the system. Do not get the
electronic key too close to the vehicle when operating the system from the outside
of the vehicle.
Depending on the position and holding condition of the electronic key, the key may
not be detected corr ectly and the system may not operate properly. (The alarm may
go off accidentally, or the door lock prevention may not function.)
■Note for the entry function
●The doors may unlock if a large amount of water splashes on the door handle,
such as in the rain or in a car wash. (The doors will automatically be locked after
approximately 30 seconds if the do ors are not opened and closed.)
●Gripping the door handle when wearing a glove may not unlock the door.
●If the wireless remote control is used to lock the doors when the electronic key
is near the vehicle, there is a possibility that the door may not be unlocked by the
entry function. (Use the wireless re mote control to unlock the doors.)
■When the vehicle is not driven for extended periods
To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m) of
the vehicle.
■Security feature
If a door is not opened within approximately 30 seconds after the vehicle is
unlocked, the anti-theft system automatically locks the vehicle again.