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:
Overview (Radio with CD)
Overview (Radio with CD)
A. RADIO/BAND
Changes the band while listening to the radio.
Selects the radio when listening to a different audio source.
B. Buttons 1−6
Radio: Saves an ...
Power Door Locks
(Unlock): Press to unlock the doors.
(Lock): Press to lock the doors.
See “Power Door Locks” in Vehicle Personalization . ...
Ignition Positions
Use the key to turn the ignition switch to four
different positions.
A (LOCK): This position locks the ignition and
transmission. It is a theft-deterrent feature. You will
only be able to remo ...
