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:
EPB Release
To release the EPB, place the ignition in the ON/RUN position, apply and hold
the brake pedal, and push down momentarily on the EPB switch. If you attempt to
release the EPB without the brake peda ...
Elegant yet functional on the inside
Comfort and elegance meet versatility and convenience within Terraza's
sumptuous interior. Chrome and wood trim accents lend a premium appearance
throughout, complementing the precision fit and fl ...
Climate Controls
The heating, cooling, defrosting, and ventilation for the vehicle can be controlled
with these systems. ...
