Toyota 2011 Highlander Owner's Manual page 219

2-4. Using other driving systems
When the Enhanced VSC/TRAC systems are operating
To disable TRAC and/or Enhanced VSC
If the vehicle gets stuck in fresh snow or mud, TRAC and Enhanced
VSC may reduce power from the engine to the wheels. You may
need to turn the system off to enable you to rock the vehicle in order
to free it.
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Turning off TRAC
212
If the vehicle is in danger of slip-
ping, rolling backwards when
starting on an incline, or the front
wheels (2WD models) or four
wheels (4WD models) spin, the
indicator flashes to indicate that
the Enhanced VSC/TRAC sys-
tems have been engaged.
Quickly push and release the
button to turn off TRAC.
The "TRAC OFF" indicator light
should come on.
Push the button again to turn the
system back on.