GMC Acadia Owner's Manual page 245

The indicator light for both systems
is in the instrument cluster. This
light will:
Flash when TCS is limiting
wheel spin.
Flash when StabiliTrak is
activated.
Turn on and stay on when either
system is not working.
If either system fails to turn on or to
activate, a message displays in the
Driver Information Center (DIC), and
comes on and stays on to
indicate that the system is inactive
and is not assisting the driver in
maintaining control. The vehicle is
safe to drive, but driving should be
adjusted accordingly.
If comes on and stays on:
1. Stop the vehicle.
2. Turn the engine off and wait
15 seconds.
3. Start the engine.
Drive the vehicle. If comes on
and stays on, the vehicle may need
more time to diagnose the problem.
If the condition persists, see your
dealer.
Turning the Systems Off
and On
The button for TCS and StabiliTrak
is on the center stack.
Driving and Operating
Caution
Do not repeatedly brake or
accelerate heavily when TCS is
off. The vehicle driveline could be
damaged.
To turn off TCS and StabiliTrak,
press and release the
appropriate message displays in the
DIC. To turn TCS and StabiliTrak on
again, press and release the
button. The appropriate message
displays in the DIC. See Ride
Control System Messages on
page 5-38.
If TCS is limiting wheel spin when
the button is pressed, the system
will not turn off until the wheels stop
spinning.
Adding accessories can affect the
vehicle performance. See
Accessories and Modifications on
page 10-2.
9-29
button. The