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:
Touch Screen Buttons
Touch screen buttons are on the screen and highlighted when a feature is available.
Some screen buttons highlight when active and gray out when inactive. ...
Shifting Into Park (Automatic Transmission)
WARNING
It can be dangerous to get out of the vehicle if the shift lever is not fully in P (Park) with the parking brake firmly set. The vehicle can roll. If you have left the engine running, the ...
Infotainment
Read the following pages to
become familiar with the audio
system's features.
WARNING!
Taking your eyes off the road for
extended periods could cause a
crash resulting in injury or death
t ...
