2012 Lexus LS 460 Owners Manual - Page 307

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2-4. Using other driving systems

2

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When the message is displayed on the multi-information display showing that

TRAC has been disabled even if the VSC off switch has not been pressed

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

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Automatic reactivation of TRAC and VSC

Turning the “ENGINE START STOP” switch OFF after turning off the TRAC and

VSC systems will automatically re-enable them.

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Automatic TRAC reactivation

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

speed increases.

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Automatic TRAC/VSC reactivation

If the TRAC/VSC systems are turned off, the systems will not turn on even when

vehicle speed increases.

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Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC, hill-start

assist control and VGRS systems

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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.

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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.

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The steering wheel may be moved slightly or a sound may be heard when the

engine is started or stopped. None of these indicate that a malfunction has

occurred.

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Hill-start assist control is operational when

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Without paddle shift switches: The shift lever is in the “D” or “S” position.

With paddle shift switches: The shift lever is in the “D” or “M” position.

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The brake pedal is not depressed.

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EPS operation sound

When the steering wheel is operated, a motor sound (whirring sound) may be

heard. This does not indicate a malfunction.