engine Lexus IS F 2009 Manual PDF

173
2-4. Using other driving systems
2
When driving
08_IS F_U_(L/O_0808)
■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.
■LSD function
The LSD function is part of TRAC control. It maintains drive power by applying the
brakes to wheels that spin when accelerating during a turn, and operates even
when TRAC or TRAC/VSC operation is turned off. However, it will not operate
when the rear brakes are at a high temperature.
■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.

184
2-5. Driving information
08_IS F_U_(L/O_0808)
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 tempera-
tures.
• 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.
■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 fro-
zen. 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 chassis.
● Periodically check for and remove any excess ice or snow that
may have accumulated in the wheel well or on the brakes.

197
3-1. Using the air conditioning system and defogger
3
Interior features
08_IS F_U_(L/O_0808)
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The dif-
ference between the temperature of the outside air and that of the windshield can
cause the outer surface of the windshield to fog up, blocking your vision.
NOTICE
■To prevent battery discharge
Do not leave the air conditio ning system on longer than necessary when the engine
is off.

198
3-1. Using the air conditioning system and defogger
08_IS F_U_(L/O_0808)
Rear window and outside rear view mirror defoggers
■The defogger can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
CAUTION
■When the outside rear view mirror defoggers are on
Do not touch the outside surface of the rear view mirror, as it can become very hot
and burn you.
These features are used to defog the rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
On/off
The defoggers will automatically
turn off after approximately 15
minutes.

201
3-2. Using the audio system
3
Interior features
08_IS F_U_(L/O_0808)
NOTICE
■To prevent battery discharge
Do not leave the audio system on longer than necessary with the engine off.
■To avoid damaging the audio system
Take care not to spill drinks or other fluids over the audio system.

227
3
Interior features
08_IS F_U_(L/O_0808)
3-3. Using the interior lights
Interior lights list
Your Lexus is equipped with the illuminated entry system to assist in enter-
ing the vehicle. Owing to the function of the system, the lights shown in the
following illustration automatically turn on/off according to the presence of
the electronic key, whether the door s are locked/unlocked, whether the
doors are opened/closed, and the “ENGINE START STOP” switch mode.
Front personal lights (→P. 2 2 9 )
Shift lever light (when the “ENGINE START STOP” switch is in
ACCESSORY or IGNITION ON mode)
Front overhead courtesy light
Front interior light ( →P. 229)
Rear personal lights ( →P. 229)
Rear overhead courtesy light
Rear interior light
Front door courtesy lights

232
3-4. Using the storage features
08_IS F_U_(L/O_0808)
Console boxPull up the knob to release the
lock.
Slide the armrest.
Pull up the knob to release the
lock.
Lift the armrest to open.
■Glove box light
The glove box light turns on when the “ENGINE START STOP” switch is in IGNI-
TION ON mode.
■Trunk opener main switch
The trunk opener main switch is located in the glove box. ( → P. 4 1 )
CAUTION
■Caution while driving
Keep the glove box closed.
Injuries may result in the event of an accident or sudden braking.
Glove box and console box

233
3-4. Using the storage features
3
Interior features
08_IS F_U_(L/O_0808)
Overhead consolePress the overhead console.
The overhead console is useful for
temporarily storing sunglasses and
similar small items.
■Console box light
The console box light turns on when the “ENGINE START STOP” switch is in
IGNITION ON mode.
■Using the console box to store CD cases
CAUTION
■Caution while driving
Keep the console box closed.
Injuries may result in the event of an accident or sudden braking.
Store a CD case with the hinged portion fac-
ing either the front or back of the console
box.
Console box and overhead console

239
3-5. Other interior features
3
Interior features
08_IS F_U_(L/O_0808)
Clock
■The clock is displayed when
The “ENGINE START STOP” switch is in ACCESSORY or IGNITION ON mode.
Adjusts the hour.
Adjusts the minutes.
Rounds to the nearest hour.
*
*: e.g. 1:00 to 1:29 → 1:00
1:30 to 1:59 → 2:00

242
3-5. Other interior features
08_IS F_U_(L/O_0808)
■Changing the settings
Each item is displayed and its setting can be changed only in the following condi-
tions:
●Intuitive parking assist: When the “ENGINE START STOP” switch is in IGNI-
TION ON mode.
●Items other than the above: When the “ENGINE START STOP” switch is in
IGNITION ON mode and the vehicle is stopped.
■Display
The display will return to the original display if the satellite switches are not oper-
ated for an extended period.
Even if the display is in satellite switch mode, it will switch in the event of a warning
or when the radar cruise control is used. If this occurs, press any of the satellite
switches or “DISP” switch on the steering wheel to return the display to satellite
switch mode.