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You may hear a sound in the engine compartment for a few
seconds when the engine is started or just after the vehicle
begins to move. This means that the active traction control
system is in the self check mode, and does not indicate
malfunction. When the active traction control system is
operating, you may feel vibration or hear noise of your vehicle,
caused by operation of the brakes. This indicates the system
is functioning properly.
When getting the vehicle out of mud or newly fallen snow, etc.,
the active traction control system will help operate to prevent
the wheels from spinning.
31X503
"Active traction control system failure warning
This light warns when there is a problem somewhere in the
active traction control system or vehicle stability control
system.
If the "VSC/TRAC" warning light comes on, have your vehicle
checked by your Lexus dealer as soon as possible.
STARTING AND DRIVING
The brake actuator temperature increases during the active
traction control system or vehicle stability control system
operating. If the brake actuator temperature becomes too high
while the active traction control system or vehicle stability
control system is operating, a buzzer will start to sound
intermittently to indicate that the active traction control system
can no longer operate. In this case, immediately stop your
vehicle at a safe place. If the system continues to operate, the
buzzer sound changes from intermittent to continuous. (The
continuous buzzer sound will stop after about 3 seconds.) At
the time the "VSC/TRAC" warning light will come on and the
active traction control system temporarily stops operating in
order to protect the brake actuator. (Although the active
traction control system does not operate, there is no problem
to continue your driving.) The system will be automatically
restored after a short time and "VSC/TRAC" warning light goes
off if the accelerator pedal is released.
When the "ABS" warning light comes on, the active traction
control system is not operating.
The "VSC/TRAC" warning light will come on when the ignition
key is turned to "ON", and will go off after a few seconds.
The "VSC/TRAC" warning light may stay on for 60 seconds
after the ignition key is turned to the "ON" position. It is normal
if it goes off after a few seconds.
Depressing the brake pedal repeatedly may turn on the
"VSC/TRAC" warning light. It is normal if it goes off after a few
seconds.
When the "VSC/TRAC" warning light comes on, the active
traction control system is not operating, but there is no problem
if you continue to drive.
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