2011 Lexus IS F wheel

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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
2
When driving
IS F_EE
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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2-4. 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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2-5. Driving information
IS F_EE
Winter driving tips
Carry out the necessary preparations and inspections before driving
the vehicle in winter. Always drive the vehicle in a manner appropriate
to the prevailing weather conditions.
Pre-winter preparations
Use fluids that are appropriate to the prevailing outside
temperatures.
• Engine oil
• Engine coolant
• Washer fluid
Have a service technician inspect the level and specific
gravity of battery electrolyte.
Have the vehicle fitted with four snow tires.
Ensure that all tires are the specified size and the same brand.
Tire chains cannot be installed on 19-inch tires. Use the
specified type of tire chains and install them on the rear
tires only. Before installing the tire chains, change all four
tires and wheels to those of the specified size (tires: 225/
40R18, wheels: 18x8JJ +45 offset). For details, contact any
authorized Lexus dealer or repairer, or another duly quali-
fied and equipped professional.
Before driving the vehicle
Perform the following according to the driving conditions.
Do not try to forcibly open a window or move a wiper that
is frozen. Pour warm water over the frozen area to melt the
ice. Wipe away the water immediately to prevent it from
freezing.
To ensure proper operation of the climate control system
fan, remove any snow that has accumulated on the air inlet
vents in front of the windshield.
Remove any ice that has accumulated on the vehicle chas-
sis

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2-5. Driving information
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When driving
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Selecting tire chains
Tire chains can be mounted on 18-inch tires. They cannot be
mounted on 19-inch tires. Use the correct tire chain size when
mounting the snow chains.
Chain size is regulated for each tire size.
Side chain
(3 mm [0.12 in.] in diameter)
Cross chain
(4 mm [0.16 in.] in diameter)
Regulations on the use of snow chains
Regulations regarding the use of tire chains vary according to
location and type of road. Always check local regulations before
installing chains.
Install the chains on the rear tires.
Retighten the chains after driving 0.5 - 1.0 km (1/4 - 1/2 mile).
When driving the vehicle
Accelerate the vehicle slowly and drive at a reduced speed
suitable to road conditions.
When parking the vehicle
Park the vehicle and move the shift lever to P without setting
the parking brake. The parking brake may freeze up, prevent-
ing it from being released. If necessary, block the wheels to
prevent inadvertent sliding or creeping.

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2-5. Driving information
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Tire chain installation
Observe the following precautions when installing and removing chains.
Install and remove tire chains in a safe location.
Install tire chains on the rear tires.
Install tire chains following the instructions provided in the accompany-
ing manual.
CAUTION
Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in a loss of vehicle control and cause death or
serious injury.
Use tires of the specified size.
Maintain the recommended level of air pressure.
Do not drive at speeds in excess of the speed limit or the speed limit spec-
ified for the snow tires being used.
Use snow tires on all, not just some wheels.
Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in the vehicle being unable to be driven safely,
and may cause death or serious injury.
Do not drive in excess of the speed limit specified for the tire chains being
used or 50 km/h (30 mph), whichever is lower.
Avoid driving on bumpy road surfaces or over potholes.
Avoid sudden turns and braking, as use of chains may adversely affect
vehicle handling.
Slow down sufficiently before entering a curve to ensure that vehicle con-
trol is maintained.

226
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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
3
Interior features
IS F_EE
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