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:
If You Do Decide To Pull A Trailer
If you do, here are some important points:
• There are many different laws, including speed
limit restrictions, having to do with trailering.
Make sure your rig will be legal, not only where
...
Using the Call Command
1. Press
.
► For vehicles without a navigation system, the system responds “Ready,” followed by a tone.
► For vehicles with a navigation system, the system responds with a tone. Aft ...
Infants and Young Children
Everyone in a vehicle needs
protection! This includes infants and
all other children. Neither the
distance traveled nor the age and
size of the traveler changes the
need, for everyone, to us ...
