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:
Navigation System
The vehicle’s navigation system provides detailed maps
of most major freeways and roads throughout the
United States and Canada. After a destination has been
set, the system provides turn-by-t ...
Listing All Paired and Connected Phones
1. Press and hold for two
seconds. The
system responds with “Ready” followed by a tone.
2. Say “Bluetooth”. The system responds with
“Bluetooth ready” followed by a tone.
3. Say â ...
Automatic Transmission Operation
The vehicle may have a shift lever located either on the
steering column or on the console between the seats.
P (Park): This position locks the front wheels. It is
the best position to use when ...
