2011 Lexus IS250 warning lights

5
When trouble arises
461
IS350/250_U
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. 4 7 3
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Brake system warning light (warning buzzer)*
• Low brake fluid
• Malfunction in the brake booster system
This 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.

470
5-2. Steps to take in an emergency
IS350/250_U
If a warning message is displayed
Stop the vehicle immediately.
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. The following warning indicates the possibility of damage to
the vehicle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Lexus dealer.
Wa r n i n g m e s s a g eDetails
(for U.S.A.)
(for Canada) (Flashing)Indicates an abnormal engine oil pressure.The warning light may turn on if the engine oil pres-
sure is too low.
If a warning is shown on the multi-information display, stay calm and per-
form the following actions:
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the
multi-information display.
Multi-information display
If any of the warning lights turns on again after performing the follow-
ing actions, contact your Lexus dealer.

564
IS350/250_U
Alphabetical index
Alphabetical index
A/C ............................................................206
ABS.............................................................. 185
Air conditioning filter ........................... 418
Air conditioning systemAir conditioning filter ........................ 418
Automatic air conditioning system .................................................. 206
Airbags
Airbag operating conditions........... 96
Airbag precautions for your child.......................................................... 99
Airbag warning light ........................ 462
Curtain shield airbag operating conditions.............................................. 96
Curtain shield airbag precautions .......................................... 99
Front passenger occupant classification system....................... 104
General airbag precautions ........... 99
Locations of airbags............................ 93
Modification and disposal of airbags .................................................. 103
Proper driving posture ............... 91, 99
Side airbag operating conditions.............................................. 96
Side airbag precautions .................... 99
SRS airbags ............................................. 93
Alarm ............................................................ 87
Antenna .................................................... 224
Anti-lock brake system ....................... 185
Armrest ...................................................... 341
Ashtrays ....................................................332
Audio input ............................................... 261 Audio system
Antenna................................................... 224
AUX port ................................................ 261
Bluetooth
® audio ............................. 266
CD player/changer .......................... 227
iPod ........................................................... 242
MP3/WMA disc................................234
Optimal use ......................................... 259
Portable music player ....................... 261
Radio ......................................................... 219
Steering wheel audio switch.........263
USB memory ...................................... 250
USB port ............................................... 250
Automatic air conditioning
system .................................................... 206
Automatic headlight leveling
system ...................................................... 167
Automatic light control system.........165
Automatic transmission Automatic transmission ................... 139
If the shift lever cannot be shifted from P..................................... 491
S mode ..................................................... 142
AUX port...................................................261
Auxiliary box .......................................... 325
Back-up lights Wattage ................................................. 524
Battery Checking............................................... 396
If the vehicle has a discharged battery ................................................. 498
Preparing and checking before winter...................................... 195
Bottle holders ......................................... 324
Bluetooth
® audio ................................. 266
A
B

566
Alphabetical index
IS350/250_U
Cruise control ......................................... 175
Cup holder .............................................. 322
Curtain shield airbags............................ 93
Customizable features ...................... 540
Daytime running light system ........... 166
DefoggerRear window.......................................... 214
Side mirror .............................................. 214
Dimension ............................................... 508
Dinghy towing ............................. 200, 201
Display
Satellite switch mode ....................... 329
Trip information ..................................... 161
Warning message............................. 470
Do-it-yourself maintenance ............ 380
Door courtesy lights Door courtesy lights...........................315
Wattage.................................................. 524
Door pockets..........................................324
Doors Door lock................................ 28, 40, 43
Door windows ....................................... 75
Side mirrors ..............................................72
Driver's seat belt reminder light ..... 463
Driving Correct posture ...................................... 91
Procedures ............................................. 124
Driving position memory ......................53 Electric power steering....................... 185
Electronic key
If the electronic key does not operate properly............................ 493
Emergency, in case of If the engine will not start ............... 489
If the shift lever cannot be shifted from P..................................... 491
If the vehicle has a discharged battery ................................................. 498
If the warning buzzer sounds........ 461
If the warning light turns on............ 461
If a warning message is displayed ............................................ 470
If you have a flat tire .......................... 481
If you lose your keys .........................492
If you think something is wrong ...................................................457
If the electronic key does not operate properly............................ 493
If your vehicle becomes stuck .... 504
If your vehicle has to be stopped in an emergency ............................506
If your vehicle needs to be
towed ..................................................... 451
If your vehicle overheats..................501
Emergency flashers Switch...................................................... 450
Engine Compartment ..................................... 386
Engine switch ........................................ 134
Hood ....................................................... 383
How to start the engine ................... 134
Identification number ...................... 509
If the engine will not start ............... 489
Ignition switch ....................................... 134
Overheating ..........................................501
D
E

573
Alphabetical index
IS350/250_U
Warning buzzersBrake system ......................................... 461
Open door .......................................... 463
Seat belt reminder ............................ 463
Warning lights Anti-lock brake system .................. 462
Brake assist system .......................... 462
Brake system ......................................... 461
Charging system ............................... 462
Electric power steering
warning light ..................................... 462
Low fuel level....................................... 463
Malfunction indicator lamp .......... 462
Master warning light ........................ 463
Open door ........................................... 463
Pretensioners ...................................... 462
Seat belt reminder light .................. 463
SRS airbags .......................................... 462
Tire pressure warning light........................................................ 463
Warning messages AWD system ......................................... 471
Engine oil level .....................................473
Engine oil maintenance...................473
Engine oil pressure........................... 470
Hood ........................................................473
Intuitive parking assist ........... 471, 473
Moon roof..............................................473
Open door ............................................473
Parking brake .......................................473 Smart access system with
push-button start ............................ 477
Steering lock........................................... 471
Tire pressure warning system...................... 471, 473
Trunk ........................................................ 473
Washer fluid ......................................... 473
Washer
Checking .............................................. 399
Preparing and checking before winter ..................................... 195
Switch........................................................ 169
Washing and waxing ...........................368
Weight Cargo capacity ...................................... 191
Load limits .............................................. 194
Weight.................................................... 508
Wheels ....................................................... 416
Window glasses ...................................... 75
Window lock switch ............................... 75
Windows Power windows ..................................... 75
Rear window defogger.....................214
Washer .................................................... 169
Windshield wipers................................. 169
Windshield wiper de-icer................... 215
Wireless remote control key Replacing the battery.........................421
WMA disc ............................................... 234W

575
What to do if...
IS350/250_U
A warning light or indicator
light comes onP. 4 6 1If a warning light turns on or a warning
buzzer sounds...
■Warning lights
or or
P. 4 6 1P. 4 6 2
P. 4 6 3
or
P. 4 6 2P. 4 6 3
P. 4 6 3P. 4 6 3
P. 4 6 2P. 4 6 2
P. 4 6 3P. 4 6 3
P. 4 6 2P. 4 6 2
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 lightTire pressure warning light
Charging system warning
lightSlip indicator
A warning message is dis-
playedP. 4 7 0If a warning message is displayed