2011 Lexus IS F air condition

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2-4. Using other driving systems
IS F_EE
Sensor detection information
Certain vehicle conditions and the surrounding environment may affect
the ability of the sensor to correctly detect obstacles. Particular instances
where this may occur are listed below.
• There is dirt, snow or ice on the sensor.
• The sensor is frozen.
• The sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle
engines, air brakes of large vehicles, or other loud noises producing
ultrasonic waves.
• There is another vehicle equipped with parking assist sensors in the
vicinity.
• The sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or wireless antenna.
• A towing eyelet is installed.
• The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb.
• In harsh sunlight or intense cold weather
In addition to the examples above, there are instances in which, because of
their shapes, signs and other objects may be judged by the sensor to be
closer than they are.
The shape of the obstacle may prevent the sensor from detecting it. Pay
particular attention to the following obstacles.
• Wires, fences, ropes etc.
• Cotton, snow and other materials that absorb radio waves
• Sharply-angled objects
•Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction
of your vehicle
If the display flashes and a message is displayed
P. 4 3 1
Customization that can be configured at any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
Settings (e.g. buzzer volume) can be changed. (Customizable features P.
484)

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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
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

226
IS F_EE
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

228
IS F_EE
3-1. Using the air conditioning system and defogger
Automatic air conditioning system
Using the automatic mode
Press .
The air conditioning system begins to operate. Air outlets and fan
speed are automatically adjusted according to the temperature
setting.
Press to switch to automatic mode.
The air conditioning system automatically switches between out-
side air and recirculated air modes.
Air outlets and fan speed are automatically adjusted according to the
temperature setting.
With navigation system
Owners of models equipped with a navigation system should refer to
the “Navigation System Owner's Manual”.
Without navigation system
Automatic mode Driver’s side
temperature setting dis-Changes the air outlets used
OffFan speed
Airflow display
Fan speed display
Passenger’s side
temperature setting dis-
Pollen removal mode
Driver's side tempera-
ture
Air conditioning
on/offOutside air or
recirculated airWind-
shield Passenger's
side
temperature
control Dual operation
STEP1
STEP2

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3-1. Using the air conditioning system and defogger
3
Interior features
IS F_EEPress “” on to increase the temperature and “” to
decrease the temperature.
The temperature for the driver and passenger seats can be set sep-
arately.
Adjusting the settings
Adjusting the temperature setting
Press “” on to increase the temperature and “” to
decrease the temperature.
The air conditioning system switches between individual and simul-
taneous modes each time is pressed.
Dual mode (the indicator on is on.): The temperature
for the left-hand seat and right-hand seat can be adjusted sepa-
rately. Operating the passenger's side temperature control will
enter dual mode.
Simultaneous mode (the indicator on is off.): Only
(driver’s side) can be used to adjust the temperature for all
seats.
Adjusting the fan speed
Press “” (increase) or “” (decrease) on .
Press to turn the fan off.
STEP3