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:
SERVICE BRAKE ASSIST
This message may be displayed
when there is a problem with the
brake boost assist system. When
this message is displayed, the brake
boost assist motor might be heard
operating and you might ...
Where Are the Airbags?
The driver frontal airbag is in the middle of the steering wheel.
The right front passenger frontal airbag is in the instrument panel on the passenger side.
Driver Side Shown, Passenger Side Simi ...
Voice Pass-Thru
Voice Pass-Thru allows access to the voice recognition
commands on the cell phone. See the cell phone
manufacturers user guide to see if the cell phone
supports this feature. This feature can be ...
