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Lexus IS250 2009 - Automatic TRAC and VSC Reactivation; Automatic TRAC Reactivation; Reactivation of the TRAC;VSC Systems after Turning off the Engine; Sounds and Vibrations Caused by the ABS, Brake Assist, VSC, TRAC

Lexus IS250 2009
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189
2-4. Using other driving systems
2
When driving
n Reactivation of the TRAC/VSC systems after turning off the engine
Turning off the engine after turning off the TRAC/VSC systems will automatically
reactivate them.
n Automatic TRAC reactivation
If only the TRAC system is turned off, the TRAC system will turn on when vehicle
speed increases.
n 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.
n Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC and hill-start
assist control systems
l 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.
l 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.

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