See also:

DIC Vehicle Customization
Your vehicle may have customization capabilities that allow you to program some features to one setting based on your preference. All of the customizable options listed may not be available on you ...

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 ...

Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this, please notify General Motors. Call 1-800-521-7300, or write: Buick Customer Assistance Center P.O. Box 33136 Detroi ...