2011 Lexus IS F brake sensor

218
2-4. Using other driving systems
IS F_EE
When passing an oncoming vehicle on a right-turn (right-hand drive
countries) or left-turn (left-hand drive countries)
When your vehicle rapidly closes on the vehicle in front
When a grade separation/interchange, sign, billboard, or other structure
appears to be directly in the vehicle's line of travel.
When an overhead billboard or other metallic structure appears to be in
the vehicle’s direct line of travel due to driving on a hill.
When an extreme change in vehicle height occurs
When the axis of the radar is out of adjustment
When passing through certain toll gates
When driving on a bridge.
When the system is activated in the situations described above there is also a
possibility 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. 425,
431)
Situations in which the pre-crash safety system does not function properly
The system may not function effectively in situations such as the following:
On roads with sharp bends or uneven surfaces
If a vehicle suddenly moves in front of your vehicle, such as at an inter-
section
If a vehicle suddenly cuts in front of your vehicle, such as when overtak-
ing
In inclement weather such as heavy rain, fog, snow or sand storms
When your vehicle is skidding with the VSC system off
When an extreme change in vehicle height occurs
When the axis of the radar is out of adjustment
Automatic cancelation of the pre-crash safety system
When a malfunction occurs due to sensor contamination, etc. that results in
the sensors being unable to detect obstacles, the pre-crash safety system will
be automatically disabled. In this case, the system will not activate even if
there is a collision possibility.

452
5-2. Steps to take in an emergency
IS F_EE
CAUTION
When using the compact spare tire
Remember that your spare tire is specifically designed for use with your
vehicle. Do not use your spare tire on another vehicle.
Do not use more than one spare tire simultaneously.
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.
Replace the spare tire with a standard tire as soon as possible.
Avoid sudden acceleration, deceleration and braking, as well as sharp cor-
nering.
Speed limit when using the compact spare tire
Do not drive at speeds in excess of 80 km/h (50 mph) 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
TRC
VDIM
Navigation system (if equipped)
Lexus parking assist-sensor (if equipped)
Dynamic radar cruise control (if equipped)
Cruise control (if equipped)
PCS (if equipped)
LSD
Automatic headlight leveling system

497
Alphabetical index
IS F_EE
Maintenance
Do-it-yourself maintenance ..359
Maintenance data ..................472
Maintenance requirements....356
Meter
Instrument panel light control ....
162
Meters ...................................161
Mirrors
Inside rear view mirror ...........79
Side mirror heater .................236
Side mirrors ............................81
Vanity mirrors ......................331
Moon roof....................................85
MP3 disc*..................................252
Multi-information display .........167
Odometer ...................................161
Oil
Engine oil .............................369
Opener
Fuel filler door ........................89
Hood .....................................363
Trunk ......................................59
Outer foot lights
Outer foot lights....................320
Wattage .................................481
Outside rear view mirrors
Adjusting and folding .............81
Mirror position memory .........62
Outside temperature display ......168
Overhead courtesy lights
Overhead courtesy lights ......320
Wattage .................................481
Overheating, Engine ..................465Parking assist sensors* ............. 199
Parking brake............................ 160
PCS ........................................... 213
Personal lights
Switch .................................. 323
Pollen removal mode* .............. 232
Power outlet.............................. 338
Power windows .......................... 82
Pre-crash safety system ............ 213
Radar cruise control.................. 184
Radiator .................................... 374
Radio* ...................................... 241
RDS* ........................................ 242
Rear fog lights
Replacing light bulbs ........... 407
Switch .................................. 175
Wattage ................................ 481
Rear turn signal lights
Replacing light bulbs ........... 407
Wattage ................................ 481
Rear window defogger* ........... 236
Replacing
Electronic key battery .......... 390
Fuses .................................... 393
Light bulbs ........................... 407M
O
P
R

501
Alphabetical index
IS F_EE
Warning buzzers
Brake system ........................425
Open door ............................428
Seat belt reminder .................428
Warning lights
Anti-lock brake system .........426
Brake assist system...............426
Brake system ........................425
Charging system ...................426
Electric power steering
system warning light ..........426
Electronic engine control
system.................................426
Low fuel level .......................428
Malfunction indicator lamp ..426
Master warning light ............428
Open door .............................428
Pre-crash safety system ........426
Pretensioners ........................426
Seat belt reminder light ........428
SRS airbags ..........................426Warning messages
Automatic transmission fluid.....
435
Dynamic radar cruise
control ....................... 433, 435
Engine oil level .................... 435
Engine oil maintenance ....... 435
Engine oil pressure .............. 432
Engine oil temperature......... 432
Headlight ............................. 433
Hill-start assist control ......... 207
Hood .................................... 435
Lexus parking assist
sensor......................... 433, 435
Moon roof ............................ 435
Open door ............................ 435
Parking brake ....................... 435
Pre-crash safety system 433, 435
Smart entry & start system .. 440
Steering lock ........................ 433
Trunk ................................... 435
Washer fluid ........................ 435W