Service All-Wheel Drive Light

This light should come on briefly when you turn on the ignition, as a check to show you it is working.
The service all-wheel drive light comes on to indicate that there may be a problem with the drive system and service is required. Malfunctions can be indicated by the system before any problem is apparent, which may prevent serious damage to the vehicle. This system is also designed to assist your GM dealer in correctly diagnosing a malfunction.
See also:
Listening to a DVD
If your vehicle has the Rear Seat
Entertainment (RSE) system and a DVD is
playing, the DVD symbol displays indicating that
the DVD is available and can be listened to
through your vehicle’s spea ...
Bluetooth (Overview)
For vehicles equipped with the
MyLink or IntelliLink infotainment
system, see the separate MyLink/IntelliLink Features and Functions
Guide for more information.
For vehicles equipped with
Blu ...
Ending a Call
Press to end a call. ...
