brake light Lexus IS F 2010 Audio/video System / LEXUS 2010 IS F (OM53A21U) User Guide

181
2-4. Using other driving systems
2
When driving
■Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC and hill-start
assist control systems
●A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indicate that
a malfunction has occurred in any of these systems.
●Any of the following conditions may occur when the above systems are operat-
ing. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
■Hill-start assist control is operational when
●The shift lever is in the D or M position.
●The brake pedal is not depressed.
■EPS operation sound
When the steering wheel operates, a motor sound (whirring sound) may be heard.
This does not indicate a malfunction.
■Reduced effectiveness of EPS
The effectiveness of EPS is reduced to prevent the system from overheating when
there is frequent steering input over an extended period of time. The steering wheel
may feel heavy as a result. Should this occur, refrain from excessive steering input or
stop the vehicle and turn the engine OFF. The system should return to normal within
10 minutes.
■Automatic deactivation of “Sport” mode
When the “ENGINE START STOP” switch is turned OFF after driving in “Sport”
mode, the mode is automatically deactivated.
■If the slip indicator comes on
It may indicate a malfunction in the VSC, TRAC or hill-start assist control system.
Contact your Lexus dealer.

185
2-4. Using other driving systems
2
When driving
■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 oncoming
vehicle 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)

363
4-2. Maintenance
4
Maintenance and care
Vehicle interior
ItemsCheck points
Accelerator pedal• Moves smoothly (without uneven
pedal effort or catching)?
Automatic transmission “Park”
mechanism• Can the vehicle be held securely
on an incline with the shift lever in
P?
Brake pedal
• Moves smoothly?
• Does it have appropriate clearance
and correct amount of free play?
Brakes
• Not pull to one side when applied?
• Loss of brake effectiveness?
• Spongy feeling brake pedal?
• Pedal almost touches floor?
Head restraints• Move smoothly and lock securely?
Indicators/buzzers• Function properly?
Lights
• Do all the lights come on?
• Headlights aimed correctly?
(P. 4 2 2 )
Pa r k i n g b r a ke
• Moves smoothly?
• Can hold the vehicle securely on
an incline?
Seat belts
• Does the seat belt system operate
smoothly?
• Are the belts undamaged?
Seats• Do the seat controls operate prop-
erly?

381
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Adding fluid
Make sure to check the fluid type and prepare the necessary items.
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel
■Brake fluid can absorb moisture from the air
Excess moisture in the fluid can cause a dangerous loss of braking efficiency. Use
only newly opened brake fluid.
CAUTION
■When filling the reservoir
Take care because brake fluid can harm your hands or eyes and damage painted
surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean water
immediately.
If you still experience discomfort, see a doctor.
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or
when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.

5
When trouble arises
441
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
443
5-2. Steps to take in an emergency
Warning lightWarning light/Details
(U.S.A.)

(Canada)
ABS warning light
Indicates a malfunction in:
•The ABS; or
• The brake assist system.
Electric power steering warning light
Indicates a malfunction in the EPS (Electric Power Steering)
system.
Pre-collision system warning light (if equipped)
Indicates a malfunction in the pre-collision system.
■Electric power steering warning light
When the battery is low or when the voltage drops temporarily, the electric power
steering warning light may come on.
CAUTION
■When the electric power steering warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, firmly hold and
operate it using more force than usual.

448
5-2. Steps to take in an emergency
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.

526
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
ABSAnti-lock Brake System
AFSAdaptive Front-lighting 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
TRACTraction Control
VDIMVehicle Dynamics Integrated Management

528
Alphabetical index
Alphabetical index
A/C ............................................................. 198
ABS............................................................... 177
ACCESSORY mode .......................... 124
AFS ................................................................151
Adaptive front lighting system ...........151
Air conditioning filter ..........................403
Air conditioning system
Air conditioning filter .......................403
Automatic air conditioning
system ................................................... 198
Airbags
Airbag operating conditions...........88
Airbag precautions for your
child.......................................................... 92
Airbag warning light ........................ 442
Curtain shield airbag operating
conditions..............................................88
Curtain shield airbag
precautions .......................................... 92
Front passenger occupant
classification system......................... 97
General airbag precautions ........... 92
Locations of airbags............................ 85
Modification and disposal of
airbags .................................................... 96
Proper driving posture ............. 83, 92
Side airbag operating
conditions..............................................88
Side airbag precautions .................... 92
SRS airbags ............................................. 85Alarm ............................................................ 80
Antenna ......................................................215
Anti-lock brake system ........................ 177
Armrest .................................................... 327
Ashtrays.................................................... 322
Audio input.............................................. 252
Audio system
Antenna.................................................... 215
Audio input ............................................252
AUX adapter .......................................252
Bluetooth
® audio ..............................257
CD player/changer ........................... 218
iPod
®.......................................................233
MP3/WMA disc................................225
Optimal use ......................................... 250
Portable music player ......................252
Radio ......................................................... 210
Steering wheel audio switch........ 254
USB memory ........................................ 241
Automatic air conditioning
system ..................................................... 198
Automatic headlight leveling
system ......................................................152
Automatic light control system........ 150
Automatic transmission
Automatic transmission ................... 128
If the shift lever cannot be
shifted from P....................................475
M mode ................................................... 132
AUX adapter ......................................... 252
A

529
Alphabetical index
Back-up lights
Wattage ................................................. 499
Battery
Checking ............................................... 382
If the vehicle has a discharged
battery..................................................480
Preparing and checking
before winter ...................................... 192
Bluetooth
® audio..................................257
Bluetooth® phone ................................275
Bottle holders .......................................... 315
Brake
Fluid ..........................................................380
Parking brake ........................................ 137
Brake assist ............................................... 177
Care
Exterior ................................................... 354
Interior..................................................... 357
Seat belts ...............................................358
Cargo capacity ...................................... 188
Cargo hooks .......................................... 332
CD changer ............................................. 218
CD player.................................................. 218
Chains ......................................................... 192Child restraint system
Booster seats, definition .................. 102
Booster seats, installation ...............108
Convertible seats, definition .......... 102
Convertible seats, installation .......108
Front passenger occupant
classification system ......................... 97
Infant seats, definition ........................ 102
Infant seats, installation .....................108
Installing CRS with lower
anchorages......................................... 107
Installing CRS with seat belts ........108
Installing CRS with top straps......... 112
Child safety
Airbag precautions .............................. 92
Battery precautions ............. 383, 482
Child restraint system ....................... 102
Child-protectors ...................................40
How your child should wear
the seat belt ..........................................60
Installing child restraints................... 106
Moon roof precautions...................... 74
Power window lock switch ..............69
Power window precautions ............ 70
Removed electronic key battery
precautions........................................407
Seat belt comfort guide .................... 58
Seat belt extender precautions...... 62
Seat belt precautions ............................61
Seat heater precautions..................326
Trunk precautions................................. 45
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