Lexus RX 450h 2010 Owner's Manual page 256

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Turning off both TRAC and VSC systems
Sounds and vibrations caused by the ABS, VSC, TRAC and brake assist
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A sound may be heard from the engine compartment when the hybrid system is
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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-
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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.
EPS operation sound
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When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
Reactivation of the TRAC /VSC systems
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Turning off the hybrid system after turning off the TRAC/VSC systems will automat-
ically reactivate them.
Reactivation of the TRAC system linked to vehicle speed
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When only the TRAC system is turned off, the TRAC system will turn on when vehi-
cle speed increases. However, when both TRAC and VSC systems are turned off,
the systems will not turn on even when vehicle speed increases.
2-4. Using other driving systems
To turn the TRAC and VSC sys-
tems off, press and hold the button
for more than 3 seconds while the
vehicle is stopped.
A message will be shown on the
multi-information display and VSC
off indicator light will come on.
Press the button again to turn the
systems back on.
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