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 Identification Number (VIN)
Vehicle Identification
Number (VIN)
This legal identifier is in the front
corner of the instrument panel, on
the left side of the vehicle. It can be
seen through the windshield from
outsi ...
Dome Lamp Override
The dome override
button is located below
the exterior lamps knob.
To turn the dome lamps off, press the button.
The dome lamps will remain off when a door is
open. This will override the ill ...
Heated Steering Wheel
For vehicles with a heated steering
wheel, the button for this feature is
located on the climate control
system.
: Press to turn the heated
steering wheel on or off. A light on
the button ...
