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:
Battery Power Protection
The battery saver feature is designed to protect the vehicle's battery.
If some interior lamps are left on and the ignition is turned off, the battery
rundown protection system automatically tu ...
Sunroof
For vehicles with a sunroof, the sunroof only operates when the ignition is in
ON/RUN or ACC/ ACCESSORY, or in Retained Accessory Power (RAP). See Retained Accessory
Power (RAP) for more i ...
Insuring the Vehicle
Protect your investment in the GM
vehicle with comprehensive and
collision insurance coverage. There
are significant differences in the
quality of coverage afforded by
various insurance poli ...