Toyota Sienna 2010 Owner's Manual page 214

2-4. Using other driving systems
To disable TRAC (2WD models only)
If the vehicle gets stuck in fresh snow or mud, TRAC may reduce
power from the engine to the wheels. You may need to turn the sys-
tem off to enable you to rock the vehicle in order to free it.
Turning off TRAC
■
Automatic reactivation of TRAC (2WD models only)
■
Turning the engine switch off after turning off the TRAC system will automat-
ically re-enable it.
Sounds and vibrations caused by ABS, brake assist, VSC and TRAC
■
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 indi-
cate that a malfunction has occurred in any of these systems.
Any of the following conditions may occur when the above systems are
●
operating. 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 ABS is activated.
• The brake pedal may move down slightly after ABS is activated.
216
Push the button to turn off
TRAC.
TRAC OFF"
The "
should come on.
Push the button again to turn the
system back on.
indicator light