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:
Comfortable, quiet ride
In addition to delivering surprising performance, Rainier's refined
powertrains and precision-engineered chassis system contribute to a comfortable,
quiet ride - a Buick distinction throughout its ...
Wheel Alignment and Tire Balance
The tires and wheels were aligned
and balanced at the factory to
provide the longest tire life and best
overall performance. Adjustments to
wheel alignment and tire balancing
will not be nec ...
Repair Facility
We recommend that you choose a collision repair facility
that meets your needs before you ever need collision
repairs. Your dealer/retailer may have a collision repair
center with GM-trained tec ...
