2011 Lexus IS F light

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2-4. Using other driving systems
IS F_EE
When the “TRC OFF” indicator light comes on even if the VSC off switch
has not been pressed
TRC and hill-start assist control cannot be operated. Contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
Automatic reactivation of the TRC/VSC systems
If the TRC/VSC systems are turned off, re-starting the engine will automati-
cally reactivate them.
Automatic TRC reactivation
If only the TRC system is turned off, the TRC system will turn on when
vehicle speed increases.
Automatic TRC and VSC reactivation
If the TRC and VSC systems are turned off, the systems will not turn on
even when vehicle speed increases.
Sounds and vibrations caused by the ABS, brake assist, VSC, TRC and hill-
start assist control systems
A sound may be heard from the engine compartment if the brake pedal is
depressed repeatedly 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
operating. 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 when 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.
The vehicle rolls backward.
EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may
be heard. This does not indicate a malfunction.

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2-4. Using other driving systems
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CAUTION
If the hill- start assist control does not operate effectively
Do not overly rely on the hill-start assist control. The hill-start assist control
may not operate effectively on steep inclines and roads covered in ice.
When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving
may cause an accident, resulting in death or serious injury. Exercise particu-
lar care when the indicator light flashes.
When TRC and VSC are off
Be especially careful and drive at a speed appropriate to the road conditions.
As these are systems to help enhance vehicle stability and driving force, do
not turn off TRC and VSC unless necessary.
Replacing tires
Make sure that all tires are of the designated size and total load capacity, and
of the same brand and tread pattern. In addition, make sure that the tires are
inflated to the recommended tire pressure level.
The ABS, VSC and TRC systems will not function correctly if different
tires are fitted on the vehicle.
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional, for further information when replacing tires or
wheels.
Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will
affect the driving assist systems, and may cause the system to malfunction.

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2-4. Using other driving systems
2
When driving
IS F_EE
PCS (Pre-Crash Safety system)
When the radar sensor detects possibility of a frontal collision, the pre-
crash safety system such as the brakes and seat belts are automatically
engaged to lessen impact and injuries to occupants as well as vehicle
damage.
Pre-crash seat belts
If the pre-crash sensor detects that a collision is unavoidable, the
pre-crash safety system will retract the seat belt before the collision
occurs.
The same will happen if the driver makes an emergency braking or
loses control of the vehicle. (P. 7 2 )
However, the system will not operate in the event of skidding when
the VSC system are disabled.
Pre-crash brake assist
When there is a high possibility of a frontal collision, the system
applies greater braking force in relation to how strongly the brake
pedal is depressed.
Pre-crash braking
When there is a high possibility of a frontal collision, the system
warns the driver using a warning light, warning display and buzzer.
If the system determines that a collision is unavoidable, the brakes
are automatically applied to reduce the collision speed. The pre-
hb ki f i b d d ff i h lli

: If equipped

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2-4. Using other driving systems
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Disabling the pre-crash braking
The pre-crash braking function
can be turned on and off using
the satellite switch. (P. 333)
Press “”or “” to display the
“PCS BRAKE” setting ( ).
Then, press the “ON/OFF” but-
ton in the middle of the switch
to select either “ON” or “OFF”
().
It may take approximately 3
seconds for the display to
change after the satellite switch
is operated.
The “PCS” warning light
flashes when “OFF” is selected.

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2-4. Using other driving systems
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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.

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2-4. Using other driving systems
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When driving
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CAUTION
Handling the radar sensor
Observe the following to ensure the pre-crash safety system can function
effectively.
Keep the sensor and front grille clean at all times.
Clean the sensor and front grille with a soft cloth so you do not mark or
damage them.
Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may become
inaccurate or malfunction. If the sensor or surrounding area are subject to
a strong impact, always have the area inspected and adjusted by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
Do not disassemble the sensor.
Do not attach accessories or stickers to the sensor, grille guard or sur-
rounding area.
Do not modify or paint the sensor and grille.
Limitations of the pre-crash safety system
Do not rely on the pre-crash safety system. Always drive safely, taking care
to observe your surroundings and checking for any obstacles or other road
hazards.
Failure to do so may cause an accident resulting in death or serious injury.

3Interior features
227
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3-4. Using the hands-free
phone system (for mobile
phones)
Hands-free system for
mobile phones ................ 293
Using the hands-free
system
(for mobile phones)........ 299
Making a phone call ......... 305
Setting a mobile phone .... 309
Security and system
setup ............................... 312
Using the phone book ...... 316
3-5. Using the interior lights
Interior lights list .............. 320
• Interior lights ................. 322
• Personal lights................ 3233-6. Using the storage
features
List of storage features .... 324
• Glove box ...................... 325
• Console box ................... 326
• Cup holders.................... 327
• Bottle holders/door
pockets ........................... 328
• Auxiliary box ................. 329
3-7. Other interior features
Sun visors ........................ 330
Vanity mirrors .................. 331
Clock................................ 332
Satellite switches ............. 333
Ashtrays ........................... 336
Cigarette lighter ............... 337
Power outlet ..................... 338
Seat heaters ...................... 339
Armrest ............................ 341
Trunk storage extension... 342
Coat hooks ....................... 344
Floor mat.......................... 345
Trunk features .................. 346

234
3-1. Using the air conditioning system and defogger
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Using the automatic mode
Fan speed is adjusted automatically in accordance with the temperature set-
ting and ambient conditions. As a result, the following may occur.
Immediately after is pressed, the fan may stop for a while until
warm or cool air is ready to flow.
Cool air may flow to the area around the upper body when the heater is
on.
Using the system in recirculated air mode
The windows will fog up more easily if recirculated air mode is used for an
extended period.
Switching between outside air and recirculated air modes
Recirculated air mode or outside air mode may be automatically switched to
in accordance with the temperature setting and the inside temperature.
Window defogger feature
Recirculated air mode may automatically switch to (outside air) mode
in situations where the windows need to be defogged.
When outside air temperature approaches 0C (32F)
The air conditioning system may not operate even when is pressed.
When the indicator light on flashes
Press and turn off the air conditioning system before turning it on
once more. There may be a problem in the air conditioning system if the
indicator light continues to flash. Turn the air conditioning system off and
have it inspected by any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional.
Automatic mode for air intake control
In automatic mode, the system detects exhaust gas and other pollutants and
automatically switches between outside air and recirculated air modes.