2012 Lexus IS F Owners Manual - Page 200

200

2-4. Using other driving systems

■

When the °TRAC OFF± indicator light comes on even if the VSC off switch has

not been pressed

TRAC and hill-start assist control cannot be operated. Contact your Lexus dealer.

■

Automatic reactivation of the TRAC/VSC systems

If the TRAC/VSC systems are turned off, re-starting the engine will automatically

reactivate them.

■

Automatic TRAC reactivation

If only the TRAC system is turned off, the TRAC system will turn on when vehicle

speed increases.

■

Automatic TRAC and VSC reactivation

If the TRAC 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, TRAC 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 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 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.