2006 Lexus IS250 check engine light

5
When trouble arises
333
5-2. Steps to take in an emergency
■If the electronic engine control system warning light comes on while driving
First check the following:
●Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon
as possible.
■Front passenger detection sensor and passenger seat belt reminder
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash, even if a passenger is not sitting in
the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.

5
When trouble arises
345
5-2. Steps to take in an emergency
Have the malfunction repaired immediately.After taking the specified steps to co rrect the suspected problem, check
that the warning light turns off.
Interior
buzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure
Once
(Comes on for 8 seconds.)
(Flashing)
Indicates that the
electronic key is
not present when
attempting to start
the engine.
Confirm the loca-
tion of the elec-
tronic key.
Once3 times
(Flashing)
Indicates that a
door other than
the driver’s door
has been opened
or closed with the
engine switch
OFF and the elec-
tronic key outside
of the detection
area.
Confirm the loca-
tion of the elec-
tronic key.

5
When trouble arises
363
5-2. Steps to take in an emergency
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is turned off.
●Turn off any unnecessary electrical compon ents when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
■When the battery is removed or discharged
The power windows and tire pressure wa rning system must be initialized.
(P. 4 1 )
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any pa rt other than the intended terminal.
●Do not allow the jumper cables to come into contact with the “+” and “-” termi-
nals.
●Do not allow open flame or use matches, cigarette lighters or smoke near the
battery.
Maintain the engine speed on th e second vehicle and turn the
ignition switch to the IG-ON mo de, then start the vehicle’s
engine.
Once the vehicle’s engine ha s started, remove the jumper
cables in the exact reverse ord er in which they were con-
nected.
Once the engine starts, have the ve hicle checked at your Lexus dealer
as soon as possible.STEP5
STEP6

406
Alphabetical index
DoorsDoor glasses ............................................. 41
Door lock.................................................... 15
Side mirrors ............................................. 39
Driver's seat belt reminder light ...... 331
Driving Correct posture .................................... 55
Procedures .............................................. 82
Driving position memory ...................... 24
Electric power steering (EPS).......... 139
Electronic key If your electronic key battery is discharged ....................................359
Emergency, in case of If the engine will not start ...............356
If the shift lever cannot be shifted from P ................................... 357
If the vehicle has discharged battery .................................................. 362
If the warning buzzer sounds ...... 329
If the warning light turns on .......... 329
If the warning message is
displayed ............................................ 334
If you have a flat tire .........................348
If you lose your keys.........................358
If you think something is wrong ................................................... 325
If your electronic key battery is discharged ....................................359
If your vehicle becomes stuck..... 367
If your vehicle needs to be towed .................................................... 318
If your vehicle overheats ................365
Engine Compartment ....................................... 261 Engine switch ......................................... 89
Hood ....................................................... 258
How to start the engine .................... 89
If the engine will not start ............... 356
Overheating ........................................ 365
Engine compartment cover ............. 263
Engine coolant Capacity .................................................374
Checking............................................... 268
Preparing and checking before winter........................................151
Engine coolant temperature gauge ...................................................... 100
Engine immobilizer system ................. 50
Engine oil Capacity .................................................373
Checking................................................264
Preparing and checking before winter........................................151
Engine oil maintenance data ........... 267
EPS (Electric power steering) ..........139
Event data recorder ............................ 327
First-aid kit storage belt ..................... 230
Floor mat .................................................. 229
Fluid Brake ........................................................270
Washer.................................................... 274
Fog lights Switch .......................................................... 116
Wattage ................................................. 383
Foot well lighting.................................... 201
Front fog lights Switch .......................................................... 116
Wattage ................................................. 383
E
F

410
Alphabetical index
Smart access system with push-button startEntry function..............................................4
Starting the engine ............................... 89
Spare tire Inflation pressure................................285
Spare tire................................................348
Spark plug ................................................ 374
Specifications .........................................370
Speedometer Speed indicator ................................... 100
Speedometer........................................ 100
Steering wheel Audio switches .....................................199
Driving position memory...................24
Manual adjustment .............................. 36
Power adjustment .................................37
Storage feature......................................205
Stuck If your vehicle becomes stuck..... 367
Sun visors .................................................... 211
Sunshade Rear .......................................................... 225
Roof ............................................................. 45
Switch ECT switch .............................................. 93
Engine switch.......................................... 89
ETCS switch............................................ 96
Fog light switch ...................................... 116
Light switches ..........................................113
Power door lock switch ...................... 15
Power window switch .......................... 41
Satellite switches .................................. 214
Transmission shift switches.............. 94
Window lock switch ............................. 41
Wipers and washer switch ...............117 Tachometer
Tacho indicator ....................................100
Tachometer............................................100
Tail lights Switch .......................................................... 113
Theft deterrent system Alarm...........................................................52
Engine immobilizer system ............. 50
Theft prevention labels.......................... 54
Tire inflation pressure ......................... 285
Tire information Glossary .................................................392
Size ........................................................... 389
Tire identification number .............388
Uniform tire quality grading......... 390
Tires Chains....................................................... 153
Checking................................................275
If you have a flat tire ......................... 348
Inflation pressure ............................... 285
Inflation pressure sensor ................276
Information ........................................... 387
Replacing .............................................. 348
Rotating tires.........................................275
Size ........................................................... 378
Snow tires................................................ 154
Tools........................................................... 348
Total load capacity ................................ 150
Towing Dinghy towing ........................... 157, 158
Emergency towing ............................. 318
Trailer towing ........................................ 156
TRAC (Traction control).....................139
Traction control (TRAC).....................139
Transmission shift switches ....................94
Trip meter ................................................. 100T