2012 Lexus IS F brake light

5
When trouble arises
465
5-2. Steps to take in an emergency
IS F_U
Warning lightWarning light/Details
(U.S.A.)

(Canada)
ABS warning lightIndicates a malfunction in:
•The ABS; or
• The brake assist system.
Electric power steering system warning lightIndicates a malfunction in the EPS (Electric Power Steering)
system.
Pre-collision system warning light (if equipped)Indicates a malfunction in the pre-collision system.
The warning light will operate as follows, even when the sys-
tem is not malfunctioning:
• The light will flash quickly when the system is operating.
(→ P. 2 0 3 )
• The light will flash when the pre-collision braking is dis- abled. ( →P. 2 0 4 )
• The light will flash when the system cannot temporarily be used. ( →P. 477)
Slip indicator
Indicates a malfunction in:
• The VSC system;
• The TRAC system; or
• The hill-start assist control system
■Electric power steering system warning light
When the voltage is low or drops, the electric power steering system warning light
may come on.

470
5-2. Steps to take in an emergency
IS F_U
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause 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 pres-
sure 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 the tire is flat,
change to 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.

482
5-2. Steps to take in an emergency
IS F_U
*: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supple-ment” for the maintenance interval applicable to your vehicle.
(Flashing)
(If equipped)
Indicates that there is a
high possibility of a fron-
tal collision, or that the
pre-collision braking
function is operating.
Slow the vehicle by apply-
ing the brakes.
■Warning light display in dynamic radar cruise mode (if equipped)
In the following cases, the warning light may not be displayed even if vehicle-to-
vehicle distance decreases.
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
Wa r n i n g m e s s a g eDetailsCorrection procedure

494
5-2. Steps to take in an emergency
IS F_U
CAUTION
■When using the compact spare tire
●Remember that your compact spare tire is specifically designed for use with your
vehicle. Do not use your compact spare tire on another vehicle.
●Do not use the compact spare tire as a rear tire. If you have a flat rear tire, replace
a front tire with the compact spare tire first and then replace the flat rear tire with
the tire removed from the front.
●Do not use more than one compact spare tire simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, deceleration and braking, as well as sharp cornering.
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failing to observe
this precaution may lead to an accident causing death or serious injury.
■When the spare tire is installed
The vehicle speed may not be correctly detected, and the following systems may
not operate correctly:
●ABS & brake assist
●VSC
●TRAC
●VDIM
●Navigation system (if equipped)
●Intuitive parking assist (if equipped)
●Dynamic radar cruise control (if equipped)
●Cruise control (if equipped)
●PCS (if equipped)
●LSD
●Automatic headlight leveling system

560
IS F_U
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
ABSAnti-lock Brake System
AI-SHIFTArtificial Intelligence Shift
ALRAutomatic Locking Retractor
CRSChild Restraint System
DISPDisplay
ECUElectronic Control Unit
EDREvent Data Recorder
ELREmergency Locking Retractor
EPSElectric Power Steering
GAWRGross Axle Weight Rating
I/MEmission inspection and maintenance
LATCHLower Anchors and Tethers for Children
LEDLight Emitting Diode
LSDLimited Slip Differential
MMTMethylcyclopentadienyl Manganese Tricarbonyl
M + SMud and Snow
MTBEMethyl Tertiary Butyl Ether
OBDOn Board Diagnostics
PCSPre-Collision System
SRSSupplemental Restraint System
TINTire Identification Number
TPMSTire Pressure Warning System
TRACTr a c t i o n C o n t r o l
VDIMVehicle Dynamics Integrated Management

562
IS F_U
Alphabetical index
Alphabetical index
A/C* ..........................................................220
ABS.............................................................. 197
ACCESSORY mode .......................... 134
Air conditioning filter .......................... 426
Air conditioning systemAir conditioning filter ....................... 426
Automatic air conditioning system .................................................. 220
Airbags Airbag operating conditions........... 97
Airbag precautions for your child.......................................................... 101
Airbag warning light ........................ 464
Curtain shield airbag operating conditions.............................................. 97
Curtain shield airbag
precautions .......................................... 101
Front passenger occupant
classification system....................... 106
General airbag pr ecautions ........... 101
Locations of airbags............................ 94
Modification and disposal of airbags .................................................. 105
Proper driving posture ............. 92, 101
Side airbag operating conditions.............................................. 97
Side airbag precautions .................... 101
SRS airbags ............................................. 94
Alarm ........................................................... 88
Antenna* ..................................................238
Anti-lock brake system ....................... 197
Armrest ...................................................... 351
Ashtrays ....................................................346
Audio input*............................................ 275
Audio system* Antenna .................................................. 238
Audio input ........................................... 275 AUX port ...............................................275
Bluetooth® audio ............................. 280
CD player/changer ........................... 241
iPod .......................................................... 256
MP3/WMA disc............................... 248
Optimal use .......................................... 273
Portable music player ......................275
Radio ........................................................233
Steering wheel audio switch......... 277
USB memory .......................................264
USB port ................................... 256, 264
Automatic air conditioning
system* .................................................. 220
Automatic headlight leveling
system ......................................................165
Automatic light control system.........162
Automatic transmission Automatic transmission ................... 138
If the shift lever cannot be shifted from P....................................497
M mode ................................................... 143
AUX port* .............................................. 275
Auxiliary box .......................................... 339
Back-up lights Wattage ..................................................522
Battery Checking............................................... 406
If the vehicle has a discharged battery ................................................. 502
Preparing and checking before winter...................................... 214
Bluetooth
® audio* ...............................280
Bluetooth® phone* ............................. 299
Bottle holders ......................................... 339
A
B

563
Alphabetical index
IS F_U
BrakeFluid .......................................................... 404
Parking brake ........................................148
Brake assist ............................................... 197
Care
Exterior ................................................... 378
Interior.......................................................381
Seat belts ............................................... 382
Cargo capacity ....................................... 210
Cargo hooks .......................................... 356
CD changer* ........................................... 241
CD player* ............................................... 241
Chains......................................................... 214
Child restraint system Booster seats, definition.......................111
Booster seats, installation .................. 117
Convertible seats, definition ..............111
Convertible seats, installation ......... 117
Front passenger occupant
classification system .......................106
Infant seats, definition ............................111
Infant seats, installation........................ 117
Installing CRS with lower
anchorages ...........................................116
Installing CRS with seat belts .......... 117
Installing CRS with top straps ......... 121
Child safety
Airbag precautions ............................. 101
Battery precautions............. 408, 504
Child restraint system ...........................111
Child-protectors.................................... 47
How your child should wear the seat belt ...........................................67 Installing child restraints..................... 115
Moon roof precautions...................... 82
Power window lock switch .............. 76
Power window precautions ............ 78
Removed electronic key battery
precautions....................................... 430
Seat belt comfort guide .....................65
Seat belt extender precautions......69
Seat belt precautions ..........................68
Seat heater precautions................. 350
Trunk precautions................................. 52
Child-protectors ...................................... 47
Cigarette lighter.................................... 347
Cleaning
Exterior....................................................378
Interior ...................................................... 381
Seat belts ................................................382
Clock ......................................................... 342
Coat hooks ..............................................354
Compass ..................................................365
Condenser ..............................................404
Console box ...........................................335
Cooling system Engine overheating.......................... 505
Cornering assist sensors ...................... 191
Cruise control Cruise control........................................173
Dynamic radar cruise control........ 177
Cup holders ............................................ 337
Curtain shield airbags............................ 94
Customizable features ...................... 538
C
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

565
Alphabetical index
IS F_U
Engine coolant temperature gauge .......................................................150
Engine immobilizer system ................. 86
Engine oil Capacity...................................................516
Checking ............................................... 399
Preparing and checking before winter ...................................... 214
EPS............................................................... 197
Event data recorder................................. 21
First-aid kit storage belt..................... 356
Floor mat.................................................. 355
Fluid Brake ....................................................... 404
Washer ................................................... 409
Fog lights Switch ........................................................166
Wattage ................................................. 522
Footwell lights........................................ 330
Front fog lights Switch ........................................................166
Wattage ................................................. 522
Front passenger occupant
classification system ..........................106
Front passenger's seat belt
reminder light ......................................466
Front seats
Adjustment .............................................. 54
Driving position memory ................. 55
Seat position memory ........................ 59
Front turn signal lights
Switch ........................................................ 147
Wattage ................................................. 522 Fuel
Capacity .................................................. 515
Fuel gauge.............................................. 150
Fuel pump shut off system............. 462
Gas station information ..................576
Information ............................................523
Refueling....................................................83
Fuel door .....................................................83
Fuel filler door ...........................................83
Fuel pump shut off system................. 462
Fuses ........................................................... 431
Garage door opener ..........................359
Gas station information...................... 576
Gauges ...................................................... 150
Glove box ................................................335
Glove box light ......................................335
Hands-free system for mobile phone* ................................................... 299
Hazard lights Switch.......................................................454
Head restraints Adjusting ....................................................61
Headlight aim ......................................... 445
Headlight cleaner ...................................172
Headlights Discharge headlight
precautions......................................... 451
Replacing light bulbs ........................ 447
Switch.........................................................162
Wattage .................................................. 522
F
G
H
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.