warning lights Lexus IS250 2009 User Guide

5
When trouble arises
383
08_IS350/250_U_(L/O_0808)
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
*: Parking brake engaged warning buzzer:

P. 3 9 5
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Brake system warning light (warning buzzer)*
• Low brake fluid
• Malfunction in the brake booster systemThis light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released the system is operating normally.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, but then turns off, this does not necessar-
ily indicate a malfunction in the system.

476
08_IS350/250_U_(L/O_0808)
Alphabetical index
Alphabetical index
A/C ............................................................. 210
ABS.............................................................. 186
AFS .............................................................. 157
Adaptive front lighting system ......... 157
Air conditioning filter .......................... 342
Air conditioning system
Air conditioning filter ....................... 342
Automatic air conditioning system ....................................................210
Airbags
Airbag operating conditions........... 86
Airbag precautions for your child.......................................................... 90
Airbag warning light ........................384
Curtain shield airbag operating conditions.............................................. 87
Curtain shield airbag precautions .......................................... 90
Front passenger occupant classification system......................... 95
General airbag precautions ........... 90
Locations of airbags............................ 84
Modification and disposal of airbags .................................................... 94
Proper driving posture ............. 82, 90
Side airbag operating conditions.............................................. 87
Side airbag precautions .................... 90
SRS airbags ............................................. 84
Alarm ............................................................ 79
Antenna .................................................... 226
Anti-lock brake system ....................... 186
Armrest..................................................... 272
Ashtrays .................................................... 263
Audio input .............................................. 244 Audio system
Antenna...................................................226
Audio input............................................244
AUX adapter .......................................244
CD player/changer ..........................229
MP3/WMA disc............................... 235
Optimal use ........................................... 241
Portable music player ...................... 244
Radio ........................................................ 222
Steering wheel audio switch........ 245
Automatic air conditioning
system ..................................................... 210
Automatic headlight leveling system ..................................................... 158
Automatic light control system.........156
Automatic transmission
Automatic transmission ..................... 131
If the shift lever cannot be
shifted from P..................................... 415
S mode ..................................................... 134
AUX adapter ......................................... 244
Back-up lights
Wattage ................................................. 445
Battery
Checking................................................. 321
If the vehicle has discharged battery ................................................... 421
Preparing and checking before winter.................................... 200
Bottle holders......................................... 256
Brake
Fluid ............................................................ 319
Parking brake........................................ 140
Brake assist .............................................. 186
A
B

478
Alphabetical index
08_IS350/250_U_(L/O_0808)
Cruise control
Cruise control .......................................166
Dynamic radar cruise control .......170
Cup holder ..............................................254
Curtain shield airbags............................84
Customizable features ........................ 461
Daytime running light system ........... 157
Defogger
Rear window..........................................218
Side mirror ..............................................218
Dimension ................................................430
Dinghy towing ............................ 205, 206
Display
Dynamic radar cruise control .......170
Satellite switch mode .......................260
Trip information .................................... 152
Warning message............................. 392
Do-it-yourself maintenance .............304
Door courtesy lights
Door courtesy lights..........................247
Wattage.................................................. 445
Door pockets..........................................256
Doors
Door glasses ........................................... 69
Door lock.................................24, 36, 39
Side mirrors ............................................. 66
Driver's seat belt reminder light .... 385
Driving
Correct posture .................................... 82
Procedures .............................................. 116
Driving position memory ......................48 Electric power steering....................... 186
Electronic key
If the electronic key does not
operate properly.............................. 417
Emergency, in case of
If the engine will not start ................. 413
If the shift lever cannot be shifted from P..................................... 415
If the vehicle has discharged battery ................................................... 421
If the warning buzzer sounds...... 383
If the warning light turns on.......... 383
If the warning message is displayed .............................................392
If you have a flat tire ........................ 404
If you lose your keys .......................... 416
If you think something is wrong ...................................................379
If the electronic key does not operate properly.............................. 417
If your vehicle becomes stuck ..... 427
If your vehicle needs to be towed ....................................................373
If your vehicle overheats.................424
Emergency flashers
Switch ....................................................... 372
Engine
Compartment ....................................... 310
Engine switch ........................................ 126
Hood ....................................................... 307
How to start the engine ................... 126
Identification number ........................ 431
If the engine will not start ................. 413
Ignition switch ....................................... 126
Overheating .........................................424
D
E

485
Alphabetical index
08_IS350/250_U_(L/O_0808)
Warning buzzers
Brake system ....................................... 383
Open door ..........................................385
Seat belt reminder ............................385
Warning lights
Anti-lock brake system .................. 384
Brake assist system .......................... 384
Brake system ....................................... 383
Charging system ............................... 384
Electric power steering warning light ..................................... 384
Low fuel level.......................................385
Malfunction indicator lamp .......... 384
Master warning light ........................385
Open door ...........................................385
Pre-collision system ......................... 384
Pretensioners ...................................... 384
Seat belt reminder light ..................385
SRS airbags .......................................... 384
Tire pressure warning
light........................................................385
Warning messages
AWD system....................................... 393
Dynamic radar cruise control .......................393, 395
Engine oil level.................................... 395
Engine oil maintenance.................. 395
Engine oil pressure........................... 392
Hood ....................................................... 395
Intuitive parking assist .........393, 395
Moon roof............................................. 395
Open door ........................................... 395
Parking brake ...................................... 395
Pre-collision system .............393, 395 Smart access system with
push-button start ........................... 400
Steering lock.........................................393
Tire pressure warning system................... 393, 395
Trunk ....................................................... 395
Washer fluid ........................................ 395
Washer
Checking ............................................... 324
Preparing and checking
before winter ................................... 200
Switch........................................................ 160
Washing and waxing ........................... 292
Weight
Cargo capacity .................................... 196
Load limits .............................................. 199
Weight.................................................... 430
Wheels ......................................................340
Window glasses ...................................... 69
Window lock switch ............................... 69
Windows
Power windows .....................................69
Rear window defogger.................... 218
Washer .................................................... 160
Windshield wipers................................. 160
Wireless remote control key
Replacing the battery.......................345
WMA disc ............................................... 235
W
*: Refer to the “Navigation System Owner’s Manual”

487
What to do if...
08_IS350/250_U_(L/O_0808)
The warning light or indicator
light comes onP. 3 8 3If a warning light turns on or a warning
buzzer sounds...
■Warning lights
or or
P. 3 8 3P. 3 8 4
P. 3 8 5
or
P. 3 8 4P. 3 8 5
P. 3 8 5P. 3 8 5
P. 3 8 4P. 3 8 4
P. 3 8 5P. 3 8 4
P. 3 8 4P. 3 8 5
Brake system warning lightMalfunction indicator lamp
“ABS” warning lightDriver’s seat belt reminder
light
Front passenger’s seat belt
reminder light
Low fuel level warning lightMaster warning light
SRS warning lightElectric power steering warning
light
Open door warning lightPre-collision system warn-
ing light
Charging system warning
lightTire pressure warning light
The warning message is dis-
playedP. 3 9 2If the warning message is displayed