immobilizer Lexus IS250 2006 Using the audio system / LEXUS 2006 IS350/250 FROM MAY 2006 PROD. OWNER'S MANUAL (OM53619U)

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

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

54
1-6. Anti-theft system
Engine immobilizer system
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle
■Certifications for the engine immobilizer system For vehicles sold in the U.S.A.
FCC ID: NI4TMIMB-1
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.
For vehicles sold in Canada
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.
The vehicle's keys have built-in transponder chips that prevent the engine
from starting if the key has not been previously registered in the vehicle's
on-board computer.
The indicator light flashes after
the engine switch has been
turned OFF to indicate that the
system is operating.

55
1-6. Anti-theft system
1
Before driving
CAUTION
Changes or modifications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
NOTICE
■To prevent damage to the key
Do not modify, remove or disable the engine immobilizer system. If any unautho-
rized changes or modifications are made, the proper operation of the system can-
not be guaranteed.

95
2-1. Driving procedures
2
When driving
■If the engine does not start
The engine immobilizer system may not have been deactivated. (P. 5 4 )
■When the engine switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Lexus
dealer immediately.
■Auto power OFF function
The engine switch will auto matically turn OFF when left in ACC mode for 1 hour or
more.
■Electronic key battery depletion
 P. 1 0
■When the electronic key battery is discharged
P. 2 9 7
■Conditions affecting operation
P. 8
■Note for the entry function
P. 1 1
CAUTION
■When starting the engine
Always start the engine while sitting in the driver’s seat. Do not press the accelera-
tor while starting the engine under any circumstances.
Doing so may cause an accident resu lting in death or serious injury.
■Caution when driving
Do not touch the engine switch while driving.
Pressing and holding the engine switch will stop the engine, which may lead to an
unexpected accident.

360
5-2. Steps to take in an emergency
If the engine will not start
If the engine will not start, even though correct starting procedures are
being followed (
P. 94), consider each of the following points.
■The engine will not start even when the starter motor operates
normally.
One of the following may be the cause of the problem.
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( P. 9 4 )
● There may be a malfunction in the engine immobilizer system.
( P. 54)
■ The starter motor turns over slow ly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume.
One of the following may be the cause of the problem.
● The battery may be discharged. ( P. 366)
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( P. 366)
● There may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.

410
Alphabetical index
DoorsDoor glasses ........................................... 45
Door lock.................................................... 19
Side mirrors ............................................. 43
Driver's seat belt reminder light .....335
Driving Correct posture .................................... 59
Procedures .............................................. 86
Driving position memory ......................28
Electric power steering (EPS).......... 144
Electronic key If your electronic key battery is discharged .................................... 363
Emergency, in case of If the engine will not start ...............360
If the shift lever cannot be shifted from P .....................................361
If the vehicle has discharged battery ..................................................366
If the warning buzzer sounds ...... 333
If the warning light turns on .......... 333
If the warning message is
displayed ............................................338
If you have a flat tire ......................... 352
If you lose your keys......................... 362
If you think something is wrong ................................................... 329
If your electronic key battery is discharged .................................... 363
If your vehicle becomes stuck....... 371
If your vehicle needs to be towed ................................................... 322
If your vehicle overheats ................369
Engine Compartment ..................................... 265 Engine switch ..........................................94
Hood ........................................................262
How to start the engine .....................94
Identification number .......................375
If the engine will not start ............... 360
Overheating ........................................ 369
Engine compartment cover ............. 267
Engine coolant Capacity .................................................379
Checking................................................ 272
Preparing and checking before winter...................................... 156
Engine coolant temperature gauge ...................................................... 105
Engine immobilizer system ................. 54
Engine oil Capacity ................................................ 378
Checking............................................... 268
Preparing and checking before winter...................................... 156
Engine oil maintenance data ............. 271
EPS (Electric power steering) ..........144
Event data recorder ..............................331
First-aid kit storage belt ..................... 234
Floor mat .................................................. 233
Fluid Brake ........................................................ 274
Washer....................................................278
Fog lights Switch .......................................................... 121
Wattage .................................................388
Foot well lighting................................... 205
Front fog lights Switch .......................................................... 121
Wattage .................................................388
E
F

414
Alphabetical index
Smart access system with push-button startEntry function..............................................4
Starting the engine ............................... 94
Spare tire Inflation pressure................................289
Spare tire................................................ 352
Spark plug ................................................ 379
Specifications ......................................... 374
Speedometer Speed indicator ................................... 105
Speedometer........................................ 105
Steering wheel Audio switches ................................... 203
Driving position memory.................. 28
Manual adjustment .............................. 40
Power adjustment .................................. 41
Storage feature......................................209
Stuck If your vehicle becomes stuck....... 371
Sun visors .................................................. 215
Sunshade Rear .......................................................... 229
Roof ............................................................. 49
Switch ECT switch .............................................. 98
Engine switch.......................................... 94
ETCS switch............................................ 101
Fog light switch .......................................121
Light switches ......................................... 118
Power door lock switch ...................... 19
Power window switch ........................ 45
Satellite switches ..................................218
Transmission shift switches.............. 99
Window lock switch ........................... 45
Wipers and washer switch ............. 122 Tachometer
Tacho indicator ....................................105
Tachometer............................................105
Tail lights Switch ..........................................................118
Theft deterrent system Alarm.......................................................... 56
Engine immobilizer system ..............54
Theft prevention labels.......................... 58
Tire inflation pressure ......................... 289
Tire information Glossary .................................................397
Size ........................................................... 394
Tire identification number ............. 393
Uniform tire quality grading......... 395
Tires Chains....................................................... 156
Checking................................................279
If you have a flat tire ......................... 352
Inflation pressure ............................... 289
Inflation pressure sensor ............... 280
Information ............................................392
Replacing .............................................. 352
Rotating tires.........................................279
Size ........................................................... 383
Snow tires................................................ 156
Tools........................................................... 352
Total load capacity ................................ 155
Towing Dinghy towing ............................162, 163
Emergency towing ............................ 322
Trailer towing .......................................... 161
TRAC (Traction control).....................144
Traction control (TRAC).....................144
Transmission shift switches ....................99
Trip meter ................................................. 105T

417
What to do if...
What to do if...
A tire puncturesP. 3 5 2If you have a flat tire
The engine does not start
P. 3 6 0If the engine will not start
P. 5 4Engine immobilizer system
P. 3 6 3If the battery is discharged
The shift lever cannot be
moved outP. 3 6 1If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 3 6 9If your vehicle overheats
The key is lostP. 3 6 2If you lose your keys
The battery runs outP. 3 6 6If the battery is discharged
The doors cannot be lockedP. 1 9Doors
The horn begins to soundP. 5 6Alarm
The vehicle is stuck in mud or
sandP. 3 7 1If the vehicle becomes stuck