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:
Windshield Wipers
If the wiper motor overheats due to heavy snow or ice, the windshield wipers
will stop until the motor cools, and the wiper control is turned off. After removal
of the blockage, the wiper motor wi ...
Taillamps and Turn Signal Lamps
To replace a taillamp or turn signal bulb, do
the following:
1. Open the liftgate.
2. Remove the two
screws from the
taillamp assembly.
3. Pull the taillamp assembly away from the
vehicle ...
CD Messages
CHECK DISC: If an error message displays and/or the
CD comes out, it could be for one of the following
reasons:
• It is very hot. When the temperature returns to
normal, the CD should play.
...
