2006 Lexus IS250 ECT

TABLE OF CONTENTS
1Before drivingAdjusting and operating features such as door locks, mir-
rors, and steering column.
2When drivingDriving, stopping and safe-driving information.
3Interior featuresAir conditioning and audio systems, as well as other interior
features for a comfortable driving experience.
4Maintenance
and careCleaning and protecting your vehicle, performing do-it-your-
self maintenance, and maintenance information.
5When trouble
arisesWhat to do if the vehicle needs to be towed, gets a flat tire,
or is involved in an accident.
6Vehicle
specificationsDetailed vehicle information.
7For US ownersReporting safety defects for US owners
IndexAlphabetical listing of informat ion contained in this manual.

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 ............... 16
Doors..................................................... 19
Trunk..................................................... 23
1-3. Adjustable components ............ 26 Front seats .......................................... 26
Driving position memory ............. 28
Seat position memory .................... 31
Head restraints................................. 33
Seat belts ............................................ 34
Steering wheel (manually adjustable type) ....... 40
Steering wheel (power-adjustable type)............. 41
Anti-glare inside rear view mirror ................................................ 42
Outside rear view mirrors ........... 43
1-4. Opening and closing the windows and moon roof .......... 45
Power windows................................ 45
Moon roof .......................................... 48 1-5. Refueling ......................................... 51
Opening the fuel tank cap............ 51
1-6. Anti-theft system ......................... 54 Engine immobilizer system ......... 54
Alarm.................................................... 56
Theft prevention labels (U.S.A.) ............................................ 58
1-7. Safety information ....................... 59 Correct driving posture ............... 59
SRS airbags ........................................ 61
Child restraint sy stems ................. 72
Installing child restraints ............... 75
2-1. Driving procedures..................... 86 Driving the vehicle .......................... 86
Starting the engine ......................... 94
Automatic Transmission .............. 97
Manual Transmission.................... 101
Turn signal lever............................. 103
Parking brake ................................. 104
2-2. Instrument cluster ..................... 105 Gauges and meters ..................... 105
Indicators and warning lights.................................................... 111
Multi-information display............. 114
1Before driving
2When driving

TABLE OF CONTENTSIndex
• Bottle holders/door pockets ........................................... 213
3-5. Other interior features............ 215 Sun visors.......................................... 215
Vanity mirror ................................... 216
Clock .................................................. 217
Satellite switches ........................... 218
Ashtrays ............................................ 221
Cigarette lighter ........................... 222
Power outlet ................................... 223
Seat heaters .................................... 224
Seat heaters and ve ntilators .... 226
Armrest ............................................ 228
Rear sunshade ............................... 229
Extended trunk............................... 231
Coat hooks ..................................... 232
Floor mat.......................................... 233
Trunk features................................ 234
Garage door opener .................. 237
Compass........................................... 242
4-1. Maintenance and care............ 248 Cleaning and protecting the vehicle exterior.................. 248
Cleaning and protecting the vehicle interior ................... 250 4-2. Maintenance.............................. 253
Maintenance requirements ..... 253
General maintena nce ................ 255
Emission inspection and maintenance (I/M)
programs ..................................... 258
4-3. Do-it-yourself maintenance............................ 259
Do-it-yourself service precautions .................................. 259
Hood.................................................. 262
Positioning the jack ..................... 263
Engine compartment.................. 265
Tires ................................................... 279
Tire inflation pressure................ 289
Wheels.............................................. 293
Air conditioning filter.................. 295
Electronic key battery ................ 297
Checking and replacing fuses ................................................ 299
Headlight aim.................................. 313
Light bulbs ........................................ 314
5-1. Essential information ............... 322 If your vehicle needs to be towed ....................................... 322
If you think something is wrong ............................................. 329
4Maintenance and care
5When trouble arises

1
2
3
4
5
6
7
Fuel pump shut off system ....... 330
Event data recorder ..................... 331
5-2. Steps to take in an emergency .............................. 333
If a warning light turns on or a warning buzzer sounds... .... 333
If a warning message is displayed ...................................... 338
If you have a flat tire..................... 352
If the engine will not start ......... 360
If the shift lever cannot be shifted from P ............................... 361
If you lose your keys .................... 362
When the electronic key battery is discharged ............... 363
If the vehicle battery is discharged ................................... 366
If your vehicle overheats ........... 369
If the vehicle becomes stuck................................................. 371
6-1. Specifications............................. 374 Maintenance data ........................ 374
Fuel information ........................... 389
Tire information............................. 392
6-2. Customization .......................... 400 Customizable features ............. 400 6-3. Initialization ............................... 404
Items to initialize ........................... 404
Reporting safety defects for U.S.A. owners ...................... 406
Alphabetical index...............................408
What to do if... ......................................... 417
6Vehicle specifications
7For US owners
Index

C
B
Pictorial indexInstrument panel
With navigation system Without navigation system
Telephone switch*1
Cruise control switch P. 126, 129
Distance switch 
P. 129
DISP switch P. 115
Speech command switch*1
DISP switch P. 115
Distance switch 
P. 129
Cruise control switch P. 126, 129
Automatic transmission Manual transmission
TRAC OFF
switch
 P. 146
ECT switch P. 98
TRAC OFF
switch
 P. 146
ETCS switch P. 101

For your information
Main Owners Manual
Please note that this manual applies to all models and explains all equipment, includ-
ing options. Therefore, you may find some explanations for equipment not installed
on your vehicle.
All specifications provided in this manual are current at the time of printing. How-
ever, because of the Lexus policy of continual product improvement, we reserve the
right to make changes at any time without notice.
Depending on specifications, the vehicle sh own in the illustration may differ from
your vehicle in terms of color and equipment.
Accessories, spare parts and modification of your Lexus
A wide variety of non-genuine spare parts and accessories for Lexus vehicles are
currently available in the market. You should know that Toyota does not warrant
these products and is not responsible for their performance, repair, or replacement,
or for any damage they may cause to, or adverse effect they may have on, your
Lexus vehicle.
This vehicle should not be modified with non-genuine Lexus products. Modification
with non-genuine Lexus products could affect its performance, safety or durability,
and may even violate governmental regula tions. In addition, damage or perfor-
mance problems resulting from the modification may not be covered under war-
ranty.
Installation of a mobile two-way radio system
As the installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as the multiport fuel injection system/sequential multiport
fuel injection system, cruise control syst em, anti-lock brake system, SRS airbag sys-
tem and seat belt pretensioner system, be sure to check with your Lexus dealer for
precautionary measures or special instructions regarding installation.

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............. 16
Doors.................................................. 19
Trunk .................................................. 23
1-3. Adjustable components .......... 26 Front seats ....................................... 26
Driving position memory .......... 28
Seat position memory ................. 31
Head restraints.............................. 33
Seat belts ......................................... 34
Steering wheel (manually adjustable type) .... 40
Steering wheel (power-adjustable type) .......... 41
Anti-glare inside rear view mirror ............................................. 42
Outside rear view mirrors ........ 43 1-4. Opening and closing the
windows and moon roof ....... 45
Power windows ............................. 45
Moon roof ....................................... 48
1-5. Refueling ...................................... 51 Opening the fuel tank cap ......... 51
1-6. Anti-theft system ...................... 54 Engine immobilizer system ...... 54
Alarm ................................................ 56
Theft prevention labels (U.S.A.) .......................................... 58
1-7. Safety information .................... 59 Correct driving posture ............ 59
SRS airbags ...................................... 61
Child restraint systems ............... 72
Installing child restraints ............ 75

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 6 )
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. 23, 209)
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 6 2 )