Lexus LS460 - Page 292

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2-4. Using other driving systems
■ 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.
■ Automatic TRAC reactivation
If only the TRAC system is turned off, the TRAC system will turn on when vehicle
speed increases.
■ Automatic TRAC/VSC reactivation
If the TRAC/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, hill-start
assist control and VGRS 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 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.
■ Hill-start assist control is operational when
● 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.
● 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.