steering Lexus IS F 2011 Service Manual

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2-1. Driving procedures
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If the engine does not start
The engine immobilizer system may not have been deactivated. (P. 9 2 )
When the steering lock cannot be released
When the “ENGINE START STOP” switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional, immediately.
Auto power off function
If the vehicle is left in ACCESSORY mode for more than an hour with the
shift lever in P, the “ENGINE START STOP” switch will automatically turn
OFF.
Electronic key battery depletion
P. 4 3
When the electronic key battery is discharged
P. 3 8 8
Conditions affecting operation
P. 4 1
Note for the entry function
P. 4 5
The “ENGINE START STOP” switch
indicator will flash in green and a mes-
sage will be shown on the multi-informa-
tion display. Press the “ENGINE START
STOP” switch again while turning the
steering wheel left and right.

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2-1. Driving procedures
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CAUTION
When starting the engine
Always start the engine while sitting in the driver's seat. Do not press the
accelerator while starting the engine under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
Stopping the engine in an emergency
If you want to stop the engine in an emergency while driving the vehicle,
push and hold the “ENGINE START STOP” switch for more than 3 sec-
onds.
However, do not touch the “ENGINE START STOP” switch while driving
except in an emergency. Turning the engine off while driving will not cause
loss of steering or braking control, but the power assist to these systems will
be lost. This will make it more difficult to steer and brake, so you should
pull over and stop the vehicle as soon as it is safe to do so.
NOTICE
To prevent battery discharge
Do not leave the “ENGINE START STOP” switch in ACCESSORY or
IGNITION ON mode for long periods without the engine running.
When starting the engine
Do not race a cold engine.
If the engine becomes difficult to start or stalls frequently, have the engine
checked immediately.

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2-4. Using other driving systems
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CAUTION
Conditions under which the vehicle-to-vehicle distance control may not
function correctly
Apply the brakes as necessary in the following conditions as the radar sen-
sor may not be able to correctly detect vehicles ahead, and a fatal or serious
accident may result:
When water or snow thrown up by the surrounding vehicles hinders the
functioning of the sensor
When your vehicle is pointing upwards (caused by a heavy load in the
trunk etc.)
When the road curves or when the lanes are narrow
When steering wheel operation or your position in the lane is unstable
When the vehicle ahead of you decelerates suddenly
Handling the radar sensor
Observe the following to ensure the cruise control system can function
effectively.
Otherwise, the system may not function correctly and could result in an
accident.
Keep the sensor and front grille cover clean at all times.
Clean the sensor and front grille cover 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 malfunc-
tion. If the sensor or surrounding area is 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 cover or sur-
rounding area.
Do not modify or paint the sensor and grille cover.
Do not replace them with non-genuine parts.

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2-4. Using other driving systems
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When driving
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To help enhance driving safety and performance, the following sys-
tems operate automatically in response to various driving situations.
Be aware, however, that these systems are supplementary and should
not be relied upon too heavily when operating the vehicle.
ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly,
or if the brakes are applied while driving on a slippery road surface.
Brake assist
Generates an increased level of braking force after the brake pedal
is depressed, when the system detects a panic stop situation.
VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces.
TRC (Traction Control)
Maintains drive power and prevents the rear wheels from spinning
when starting the vehicle or accelerating on slippery roads.
Hill-start assist control
Helps to prevent the vehicle from rolling backward when starting
on an incline or slippery slope.
EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to
turn the steering wheel.
PCS (Pre-Crash Safety system) (if equipped)
P. 213
VDIM (Vehicle Dynamics Integrated Management)
Provides integrated control of the ABS, brake assist, TRC, VSC,
hill-start assist control, and EPS systems.
Helps to maintain vehicle stability when swerving on slippery road
surfaces by controlling the brakes, engine output and steering assist.
When the F-sport mode total control switch is pressed, “Sport”
mode is activated. (P. 209)

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2-4. Using other driving systems
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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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When driving
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Reduced effectiveness of the EPS system
The effectiveness of the EPS system 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 EPS 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, TRC or hill-start assist control
systems. Contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional.
CAUTION
The ABS does not operate effectively when
The limits of tire gripping performance have been exceeded.
The vehicle hydroplanes while driving at high speed on the wet or slick
road.
Stopping distance when the ABS is operating may exceed that of normal
conditions
The ABS is not designed to shorten the vehicle's stopping distance. Always
maintain a safe distance from the vehicle in front of you in the following sit-
uations.
When driving on dirt, gravel or snow-covered roads
When driving with tire chains
When driving over bumps in the road
When driving over roads with potholes or roads with uneven roads
TRC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRC system is operating.
Do not drive the vehicle in conditions where stability and power may be
lost.

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2-5. Driving information
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When driving
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CAUTION
Luggage capacity and distribution
Observe the following precautions. Failure to do so will not only put load on
the tires, but also reduce steering and braking performance. This could lead
to an accident resulting in serious injury or even death.
Do not overload the vehicle.
Do not apply load to the vehicle unevenly.

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3-1. Using the air conditioning
system and defogger
Automatic air
conditioning system ....... 228
Rear window and
outside rear view
mirror defoggers ............ 236
Windshield wiper de-icer . 237
3-2. Using the audio system
Audio system types .......... 238
Using the radio ................. 241
Using the CD player......... 245
Playing back MP3
and WMA discs ............. 252
Operating an iPod ............ 259
Operating a
USB memory ................. 266
Optimal use of the audio
system ............................ 273
Using the AUX port ......... 275
Using the steering wheel
audio switches................ 2763-3. Using the Bluetooth®
audio system
Bluetooth
® audio system . 279
Using the Bluetooth®
audio system .................. 283
Operating a Bluetooth
®
enabled portable
player ............................. 286
Setting up a Bluetooth
®
enabled portable
player ............................. 289
Bluetooth
® audio system
setup............................... 292

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3-2. Using the audio system
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Interior features
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Using cellular phones
Interference may be heard through the audio system's speakers if a cellular
phone is being used inside or close to the vehicle while the audio system is
operating.
TitlePage
Using the radioP. 2 4 1
Using the CD playerP. 2 4 5
Playing back MP3 and WMA discsP. 2 5 2
Operating an iPodP. 2 6 0
Operating a USB memoryP. 2 6 8
Optimal use of the audio systemP. 2 7 5
Using the AUX portP. 2 7 7
Using the steering wheel audio switchesP. 2 7 8

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3-2. Using the audio system
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Using the steering wheel audio switches
Turning on the power
Press when the audio system is turned off.
The audio system can be turned off by holding down until you
hear a beep.
Some audio features can be controlled using the switches on the steer-
ing wheel.
Turns the power on, selects
an audio source
Increases/decreases vol-
ume
Radio mode:Selects a
radio station
CD mode: Selects a track,
file (MP3 and
WMA) and disc
Bluetooth
® audio mode:
Selects a track
and album
iPod mode:Selects a song
USB memory mode:
Selects a file and