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:
Customer Assistance Offices
Buick encourages customers to call the toll-free number for assistance.
However, if a customer wishes to write or e-mail Buick, the letter should be addressed to:
United States
Buick Customer Assis ...
Vehicle Data Recording and Privacy
This GM vehicle has a number of sophisticated computers that record information
about the vehicle’s performance and how it is driven. For example, the vehicle uses
computer modules to monitor an ...
What to Use
To determine what kind of fluid to
use, see Recommended Fluids and
Lubricants. Always
use the proper fluid. ...