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:
Trip/Fuel Menu Items
Press MENU on the turn signal lever until the Trip/Fuel Menu is displayed. Use
to scroll through the following menu
items:
Digital Speedometer
Trip 1
Trip 2
Fuel Range
Average Fuel Eco ...
Driver Information Center (DIC)
The Driver Information Center (DIC)
displays information about the
vehicle. It also displays warning
messages if a system problem is
detected. See Vehicle Messages for more information. All
...
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 ...
