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:
Maintenance Record
After the scheduled services are performed, record the date, odometer
reading, who performed the
service, and the type of services performed in the boxes provided.
Any additional information from ...
Sensor
The solar sensor, located on top of
the instrument panel near the
windshield, monitors the solar heat.
The climate control system uses the
sensor information to adjust the
temperature, fan sp ...
Compass
The vehicle has a compass display in the DIC. See Compass for more information. ...