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:
Compass
The vehicle may have a compass
display in the Driver Information
Center (DIC). See Compass for more information. ...
Cruise Control Light
This light is white whenever the
cruise control is set and turns green
when the cruise control is active.
The light goes out when the cruise
control is turned off. See Cruise
Control for mo ...
Coverage
Services are provided up to 5 years/160 000 km (100,000 mi), whichever
comes first.
In the U.S., anyone driving the
vehicle is covered. In Canada, a
person driving the vehicle without
permiss ...
