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:
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. See Vehicle Messages for more informati ...
Playing an Audio CD
1. Press the CD screen button on
the Home Page or select CD
from the source pop-up to
display the CD main page.
2. From the CD screen, press the
Menu screen button to display
the menu optio ...
Finish Care
Occasional waxing or mild polishing of your
vehicle by hand may be necessary to remove
residue from the paint finish. You can get
GM-approved cleaning products from your dealer.
If your vehicle ha ...
