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:
Brake Adjustment
Every time the brakes are applied, with or without the
vehicle moving, the brakes adjust for wear. ...
Wheel Alignment and Tire Balance
The tires and wheels on your vehicle were aligned
and balanced carefully at the factory to give you
the longest tire life and best overall performance.
Adjustments to wheel alignment and tire
ba ...
Questions and Answers About Safety Belts
Q: Will I be trapped in the vehicle after an
accident if I am wearing a safety belt?
A: You could be — whether you are wearing a
safety belt or not. But you can unbuckle a
safety belt, even if ...