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:
Front Fog Lamp Light
For vehicles with front fog lamps, this light comes on when the front fog lamps
are in use.
The light goes out when the front fog lamps are turned off. See Front Fog Lamps
for more inform ...
General Information
For service and parts needs, visit your dealer. You will receive genuine GM parts
and GM-trained and supported service people.
Genuine GM parts have one of these marks:
...
Instrument Panel Fuse Block
The instrument panel fuse block is
located in the instrument panel, on
the driver side of the vehicle. To
access the fuses, open the fuse
panel door by pulling down at
the top.
Press in o ...
