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:
CD Messages
CHECK CD: If this message appears on the
display and/or the CD ejects, it could be for one of
the following reasons:
• It is very hot. When the temperature returns to
normal, the CD should pla ...
Hazard Warning Flashers
Hazard Warning Flasher: Press this button located on the instrument panel above the audio system, to make the front and rear turn signal lamps flash on and off.
Press again to turn the flashe ...
Weatherstrips
Apply silicone grease on
weatherstrips to make them last
longer, seal better, and not stick or
squeak. See Recommended Fluids
and Lubricants. ...
