OnStar Services

See also:

Cleaning the Center Stack
Cleaning the Display Notice: Using abrasive cleaners when cleaning glass surfaces could scratch the glass. Use only a soft cloth and do not spray cleaner directly on the system as it could affect ...

Center Console Storage Area
If equipped, squeeze the front lever while lifting the top to open it. Your vehicle’s console will be equipped with cupholders located on the front and rear of the storage compartment. The ...

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 ...