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:
Cleaning Exterior Lamps/Lenses and Emblems
Use only lukewarm or cold water, a
soft cloth, and a car washing soap
to clean exterior lamps and lenses.
Follow instructions under "Washing
the Vehicle" later in this section. ...
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
• Allow extra following distance.
• Pass with caution.
• Keep windshield wiping
equipment in good shape.
• Keep the windsh ...
Courtesy Transportation
To enhance your ownership experience, we and
our participating dealers are proud to offer
Courtesy Transportation, a customer support
program for new vehicles.
For warranty repairs during the Bu ...
