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:
Bulb Replacement
For any bulb changing procedure not listed in this
section, contact your dealer. ...
Traction Off Light
This light comes on briefly while starting the engine.
If it does not, have the vehicle serviced by your dealer. If the system is working normally, the indicator light then goes off.
The traction ...
Rocking Your Vehicle to Get It Out
First, turn the steering wheel left and right.
That will clear the area around the front wheels.
Then shift back and forth between REVERSE (R)
and a forward gear, spinning the wheels as
little ...