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:
Vehicle Load Limits
It is very important to know how much weight the vehicle can carry. This weight
is called the vehicle capacity weight and includes the weight of all occupants,
cargo, and all nonfactory-installed ...
Contacting Roadside Assistance
Roadside Assistance services are of
no cost to you and available
24 hours a day, 365 days a year.
Costs are only incurred in situations
that exceed the limits of the
program, some of which ar ...
Key and Lock Messages
REPLACE BATTERY IN REMOTE KEY
This message displays when the battery in the Remote Keyless Entry (RKE) transmitter needs to be replaced. ...
