2015 Lexus IS250 warning lights

4708-2. Steps to take in an emergency
IS350/250_U (OM53C50U)
CAUTION
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The vehi-
cle will become extremely unstable during braking, and the ABS system may fail, which
could cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than us ual when operating, hold firmly and oper-
ate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change it
with the spare tire and have the flat tire repaired by the nearest Lexus dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

4728-2. Steps to take in an emergency
IS350/250_U (OM53C50U)
Master warning light
The master warning light also comes on or flashes in order to indicate that a
message is currently being displayed on the multi-information display.
Multi-information display
If any of the warning lights come on again after the following actions have been
performed, contact your Lexus dealer.
If a warning message is displayed
If a warning is shown on the multi-information display, stay calm and perform
the following actions:
Except F SPORT modelsF SPORT models (when the main
meter is in the center position)
F SPORT models (when the main
meter is in the right-side position)
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566Alphabetical index
IS350/250_U (OM53C50U)
Back-up lightsReplacing light bulbs ......................... 451
Wattage ................................................... 521
Battery....................................................... 420 Battery checking ................................420
If the vehicle battery is discharged.................................... 502
Preparing and checking before winter ................................................... 260
Warning light ...................................... 466
Bluetooth
®
Audio system .........................................317
Hands-free system (for cellular phone) ......................... 319
Bottle holders ......................................... 372
Brake Fluid............................................................ 419
Parking brake......................................... 172
Warning light ...................................... 466
Brake assist ............................................. 240
Break-in tips.............................................. 147
Brightness control Instrument panel light control .........84
BSM (Blind Spot Monitor)................ 252 Care................................................ 396, 399
Aluminum wheels .............................. 397
Exterior ................................................... 396
Interior ..................................................... 399
Seat belts............................................... 400
Cargo capacity ....................................... 156
Cargo hooks ...........................................374
CD player................................................ 295
Chains ......................................................... 261
Child restraint system ............................54 Booster seats, definition .................... 55
Booster seats, installation ................. 64
Convertible seats, definition ........... 55
Convertible seats, installation........... 61
Front passenger occupant classification system..........................47
Infant seats, definition.......................... 55
Infant seats, installation......................... 61
Installing CRS with LATCH anchors ..................... 59
Installing CRS with seat belts ........... 61
Installing CRS with top tether strap......................... 65
BC

568Alphabetical index
IS350/250_U (OM53C50U)
Daytime running light system ............ 174
DefoggerFront windshield .................................362
Outside rear view mirrors .............362
Rear window ........................................362
Differential Front differential ................................... 517
Rear differential .................................... 517
Dimension .................................................512
Dinghy towing......................................... 158
Display Drive information .................................. 87
Dynamic radar cruise control....... 196
LDA (Lane Departure Alert) ...... 209
Multi-information display ..................86
Warning message ............................. 472
Distance ...................................................... 88
Do-it-yourself maintenance ............. 409
Door courtesy lights Location ................................................. 368
Wattage ................................................... 521 Doors ..........................................................103
Automatic door locking and unlocking system ................... 106
Door glasses ......................................... 138
Door lock................................................ 105
Open door warning buzzer ..........104
Open door warning light .............. 467
Outside rear view mirrors ..............135
Rear door child-protector ............. 106
Drive information .....................................87
Drive info 1/Drive info 2 ....................... 88
Driver’s seat position memory.......... 123
Driving ........................................................ 146 Break-in tips ........................................... 147
Correct driving posture .................... 28
Driving mode select switch ...........237
Procedures .............................................146
Winter drive tips ................................ 260
Dynamic radar cruise control ........... 196
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570Alphabetical index
IS350/250_U (OM53C50U)
Emergency flashers ............................. 456
Engine .........................................................514ACCESSORY mode....................... 160
Compartment....................................... 413
Engine switch ........................................ 159
Hood ........................................................... 411
How to start the engine ................... 159
Identification number ........................ 513
If the engine will not start............... 496
Ignition switch (engine switch)..... 159
Overheating ........................................ 506
Engine coolant......................................... 417 Capacity .................................................. 516
Checking..................................................417
Preparing and checking before winter ................................... 260
Engine coolant temperature gauge ..........................................................81
Engine immobilizer system ................. 69
Engine oil ...................................................414 Capacity .................................................. 514
Checking................................................. 414
Preparing and checking before winter ................................... 260
Engine switch .......................................... 159
Enhanced VSC ..................................... 240
EPS (Electronic Power Steering) ..........241 Function ....................................................241
Warning light ....................................... 467
Event data recorder (EDR) ...................10 First-aid kit storage belt......................374
Flat tire ...................................................... 486
Floor mats....................................................26
Fluid
Automatic transmission .................... 517
Brake......................................................... 518
Washer ................................................... 422
Fog lights..................................................... 181 Replacing light bulbs ....................... 452
Switch ......................................................... 181
Wattage ................................................... 521
Footwell light .......................................... 368 Wattage ................................................... 521
Front passenger occupant classification system ............................ 47
Front personal lights ........................... 369 Wattage ................................................... 521
Front seats ................................................. 120 Adjustment..............................................120
Cleaning................................................. 399
Correct driving posture .................... 28
Driving position memory................. 123
Head restraints .....................................128
Power easy access system ............. 123
Seat heaters .......................................... 367
Seat position memory ....................... 123
Seat ventilators.................................... 367F

571Alphabetical index
IS350/250_U (OM53C50U)
Front turn signal lights ..........................170Replacing light bulbs ........... 446, 448
Turn signal lever .................................. 170
Wattage ................................................... 521
Fuel .............................................................. 188 Capacity .................................................. 514
Fuel gauge ................................................. 81
Fuel pump shut off system............ 465
Information ............................................ 522
Refueling..................................................188
Type ................................................ 188, 514
Warning light ....................................... 467
Fuel consumption Average fuel economy ...................... 87
Current fuel consumption ................ 87
Fuel filler door ......................................... 188 If the fuel filler door cannot be opened .......................... 190
Refueling..................................................188
Fuel gauge ....................................................81
Fuel pump shut off system................. 465
Fuses ............................................................441
Garage door opener .......................... 382
Gauges ..........................................................81
Gear positions ........................................ 168
Glove box .................................................. 371
Glove box light ........................................ 371 Hands-free system
(for cellular phone)............................. 319
HD Radio
® system .............................. 289
Head restraints........................................ 128
Headlights ................................................. 173 Discharge headlights precautions ....................................... 453
Light switch............................................. 173
Replacing light bulbs ....................... 452
Wattage ................................................... 521
Headlights cleaner ................................ 182
Heaters Air conditioning system .................358
Heated steering wheel ................... 366
Outside rear view mirrors ............ 362
Seat heaters .......................................... 367
Hill-start assist control ....................... 240
Hood .............................................................411 Open ...........................................................411
Hooks Cargo hooks ....................................... 374
Coat hooks ............................................ 381
Retaining hooks (floor mat)............. 26
Horn............................................................. 132
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572Alphabetical index
IS350/250_U (OM53C50U)
I/M test .....................................................408
IdentificationEngine ....................................................... 513
Vehicle ..................................................... 513
Ignition switch (engine switch)......... 159
Illuminated entry system .................... 369
Immobilizer system................................. 69
Indicators .................................................... 78
Initialization Maintenance........................................ 403
Moon roof .............................................. 143
Multi-information display ................. 88
Power windows ................................... 139
Tire pressure warning system................................ 424
Initiators (tire pressure warning system)................................. 430
Inside door handle lights ................... 368
Inside rear view mirror .........................133
Instrument panel light control ............ 84
Interior lights........................................... 369 Wattage ................................................... 521
Intuitive parking assist........................... 214
Jack Positioning a floor jack ......................412
Vehicle-equipped jack ...................487
Jack handle ..................................................487
Jam protection function Moon roof ...............................................142
Power windows ................................... 139 Keyless entry
Smart access system with push-button start.........103, 109
Wireless remote control.......103, 109
Keys .............................................................. 98 Battery-saving function ..................... 115
Electronic key ......................................... 98
Engine switch ........................................159
If the electronic key does not operate properly ........ 499
Key number plate ................................. 98
Keyless entry ........................................... 98
Mechanical key...................................... 99
Replacing the battery ...................... 439
Warning buzzer...................................104
Wireless remote control................... 98
Knee airbags ..............................................36
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574Alphabetical index
IS350/250_U (OM53C50U)
MaintenanceDo-it-yourself maintenance......... 409
General maintenance .................... 405
Maintenance data ............................... 512
Maintenance requirements...........402
Maintenance system ..............................88
Malfunction indicator lamp .............. 466
Master warning light ........................... 467
Meter Changing the display..........................83
Indicators................................................... 78
Instrument panel light control .........84
Meters.......................................................... 81
Multi-information display ..................86
Warning lights ........................................ 77
Micro dust and pollen filter ................361
Mirrors Inside rear view mirror ..................... 133
Outside rear view mirror defoggers ...........................................362
Outside rear view mirrors .............. 135
Vanity mirrors ...................................... 377 MMS (Multimedia messaging
service)................................................... 327
Mobile Assistant .................................... 272
Moon roof ...................................................141 Door lock linked moon roof operation...................... 142
Jam protection function.................... 142
Operation..................................................141
MP3 disc ................................................. 295
Multi-information display..................... 86 Audio system-linked ........................... 86
Drive information.................................. 87
Dynamic radar cruise control .......196
LDA (Lane Departure Alert).......209
Navigation system-linked ................ 86
Settings ......................................................88
Switching the display .......................... 87
Warning message..............................472
Navigation system
*
Needle ......................................................... 88
Noise from under vehicle ........................8
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