2010 Lexus IS F warning lights

185
2-4. Using other driving systems
2
When driving
10_IS F_U
■The pre-collision system is operational when
●Pre-collision seat belt (linked to the radar sensor)
• Vehicle speed is above 3 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or oncomingvehicle exceeds about 18 mph (30 km/h).
• The front occupants are wearing a seat belt.
●Pre-collision seat belts (linked to brake operation)
• Vehicle speed exceeds 18 mph (30 km/h).
• The system detects sudden braking or skidding.
• The front occupants are wearing a seat belt.
●Pre-collision brake assist
• Vehicle speed is above 18 mph (30 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehicle is greater than 18 to 24 mph (30 to 40 km/h).
• The brake pedal is depressed.
■Conditions that may trigger the system even if there is no danger of collision
●When there is an object by the roadside at the entrance to a curve
●When passing an oncoming vehicle on a curve
●When driving over a narrow iron bridge
●When there is a metal object on the road surface
●When driving on an uneven road surface
●When passing an oncoming vehicle on a left-turn
●When your vehicle rapidly closes on the vehicle in front
When the system is activated in the situations described above there is also a possi-
bility that the seat belts will retract quickly and the brakes will be applied with a force
greater than normal. When the seat belt is locked in the retracted position, stop the
vehicle in a safe place, release the seat belt and refasten.
■When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. ( →P. 441, 451)

417
4-3. Do-it-yourself maintenance
4
Maintenance and care
10_IS F_U■
Driver’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT LH30 APo w e r s e a t
2A/C7. 5 AAir conditioning system
3MIR HTR15 AOutside rear view mirror defoggers
4TV NO. 110 ADisplay
5FUEL OPEN10 AFuel filler door opener
6TV NO. 27. 5 A
7PSB30 APre-collision seat belt
8S/ROOF25 AMoon roof
9TA I L10 ATail lights, license plate lights, rear side
marker lights
10PA N E L7. 5 A
Switch illumination, air conditioning
system, display, safety connect, ciga-
rette lighter illumination, shift lever
light, instrument panel lights
11RR FOG7. 5 A
12ECU-IG LH10 A
Cruise control, air conditioning sys-
tem, electric power steering, shift lock
system, moon roof, tire inflation pres-
sure warning system

5
When trouble arises
441
10_IS F_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 5 5
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.

5
When trouble arises
451
5-2. Steps to take in an emergency
10_IS F_U
If a warning message is displayed
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.

530
Alphabetical index
10_IS F_U
Child-protectors ......................................40
Cigarette lighter....................................323
CleaningExterior ................................................... 354
Interior ..................................................... 357
Seat belts................................................358
Clock .......................................................... 318
Coat hooks ............................................. 330
Compass ................................................... 341
Condenser ............................................. 380
Console box ..............................................311
Cooling system Engine overheating ..........................483
Cornering assist sensors ...................... 171
Cruise control Cruise control ...................................... 158
Dynamic radar crui se control ........ 161
Cup holders ............................................. 313
Curtain shield airbags............................85
Customizable features ........................ 514
Daytime running light system .............151
Defogger Rear window........................................206
Side mirrors ..........................................206
Dimension ............................................... 488
Dinghy towing ......................................... 195
Display
Dynamic radar crui se control ........ 161
Satellite switch mode .........................319
Trip information .................................... 147
Warning message...............................451 Do-it-yourself maintenance ............. 366
Door courtesy lights
Door courtesy lights ........................ 306
Wattage ................................................. 498
Door pockets .......................................... 315
Doors Door lock ................................ 26, 37, 39
Door windows........................................69
Side mirrors.............................................. 67
Driver's seat belt reminder light ..... 444
Driving Correct posture.................................... 83
Procedures............................................... 116
Driving position memory...................... 48
Electric power steering........................ 177
Electronic key If the electronic key does not
operate properly............................. 477
Emergency flashers
Switch...................................................... 430
D
E

531
Alphabetical index
10_IS F_U
Emergency, in case ofIf the engine will not start ................474
If the shift lever cannot be shifted from P ................................... 475
If the vehicle has a discharged battery..................................................480
If the warning buzzer sounds........ 441
If the warning light turns on ............ 441
If a warning message is displayed .............................................. 451
If you have a flat tire ........................ 465
If you lose your keys ........................ 476
If you think something is wrong....................................................437
If the electronic key does not operate properly .............................477
If your vehicle becomes stuck ....486
If your vehicle needs to be towed ..................................................... 431
If your vehicle overheats................ 483
Engine ACCESSORY mode ....................... 124
Compartment ......................................372
Engine switch ........................................ 124
Hood ....................................................... 369
How to start the engine.................... 124
Identification number.......................489
If the engine will not start ................474
Ignition switch........................................ 124
Overheating......................................... 483
Engine compartment cover..............373 Engine coolant
Capacity .................................................493
Checking ...............................................378
Preparing and checking
before winter ......................................192
Engine coolant temperature
gauge....................................................... 139
Engine immobilizer system.................. 78
Engine oil Capacity .................................................492
Checking ............................................... 374
Preparing and checking
before winter ......................................192
Engine oil maintenance data............ 376
EPS ............................................................... 177
Event data recorder ............................ 439
First-aid kit storage belt ..................... 332
Floor mat ................................................... 331
Fluid
Brake ....................................................... 380
Washer .................................................. 385
Fog lights Switch........................................................ 153
Wattage ................................................. 498
Footwell lights ........................................306
Front fog lights Switch........................................................ 153
Wattage ................................................. 498
Front passenger occupant
classification system ............................ 97
F

536
Alphabetical index
10_IS F_U
TiresChains ....................................................... 192
Checking ...............................................386
If you have a flat tire..........................465
Inflation pressure................................ 397
Inflation pressure sensor................386
Information............................................502
Replacing...............................................465
Rotating tires ........................................386
Size ........................................................... 497
Snow tires ................................................ 192
Tools ...........................................................465
Total load capacity ..................................191
Towing
Dinghy towing ...................................... 195
Emergency towing ............................. 431
Trailer towing.........................................194
TRAC...........................................................177
Traction control .......................................177
Transmission shift switches ...... 130, 132
Trip meter ................................................. 139
Trunk
Extending trunk space .................... 328
Opener ...................................................... 43
Trunk light Trunk light................................................. 44
Wattage..................................................498
Turn signal lights
Replacing light bulbs........................ 424
Switch ........................................................136
Wattage..................................................498 Vanity lights
Vanity lights............................................ 317
Wattage ................................................. 498
Vanity mirrors .......................................... 317
VDIM........................................................... 177
Vehicle dynamics integrated
management ......................................... 177
Vehicle identification number ......... 489
Vehicle stability control ....................... 177
Voice command switch .....................280
VSC ............................................................. 177
Warning buzzers Brake system......................................... 441
Open door ...........................................444
Seat belt reminder .............................444
Warning lights Anti-lock brake system ...................442
Brake assist system ...........................442
Brake system......................................... 441
Charging system ................................442
Electric power steering
warning light......................................442
Low fuel level........................................444
Malfunction indicator lamp ...........442
Master warning light.........................444
Open door ............................................444
Pre-collision system..........................442
Pretensioners .......................................442
Seat belt reminder light ...................444
SRS airbags...........................................442
Tire pressure warning
light.........................................................444V
W

539
What to do if...
10_IS F_U
A warning light or indicator
light comes onP. 4 4 1If a warning light turns on or a warning
buzzer sounds...
■Warning lights
or or
P. 4 4 1P. 442
P. 444
or
P. 4 4 2P. 444
P. 444P. 444
P. 4 4 2P. 442
P. 444P. 442
P. 4 4 2P. 444
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
A warning message is dis-
playedP. 4 5 1If a warning message is displayed