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:
Parking/Turn Signal Lamp
1. Open the hood. See Hood .
2. Remove the parking/turn signal lamp bulb socket from the headlamp assembly
by turning counterclockwise.
3. Remove the bulb from the bulb socket by pulling it straig ...
If Your Vehicle is Stuck in Sand,
Mud, Ice, or Snow
Slowly and cautiously spin the wheels to free the
vehicle when stuck in sand, mud, ice, or snow. See
Rocking Your Vehicle to Get It Out.
If the vehicle has a traction system, it can often help to ...
Overview (Radio with CD and Touchscreen)
For vehicles equipped with the
MyLink® or IntelliLink® infotainment
system, see the separate MyLink/IntelliLink Features and Functions
Guide for more information.
Keeping your eyes on the roa ...
