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:
Trip 1 and Trip 2
This display shows the current
distance traveled, in either
kilometers (km) or miles (mi), since
the last reset for the trip odometer.
The trip odometer can be reset to
zero by pressing SET/C ...
Passing
More passing distance is needed when towing a trailer. Because
the rig is longer, it is necessary to go much farther beyond the passed vehicle
before returning to the lane. ...
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not o ...