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:
Shoulder Belt Height Adjuster
The vehicle has a shoulder belt height adjuster for the driver and right front
passenger seating positions.
Adjust the guide so the shoulder portion of the belt is on the shoulder and not
falling ...
Child Restraint Systems
(A) Rear-Facing Infant Seat
A rear-facing infant seat (A)
provides restraint with the seating
surface against the back of the
infant.
The harness system holds the infant
in place and, in a ...
Low-Profile Tires
If the vehicle has P235/45R18 size tires, they are classified as low-profile
tires.
Notice: Low-profile tires are more susceptible to damage from road hazards or
curb impact than standard profile ...
