See also:

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 ...

English and Metric Unit Conversion
To change the display units between English and metric units, see Driver Information Center (DIC) for more information. ...

Tire and Loading Information Label
A vehicle specific Tire and Loading Information label is attached to the center pillar (B-pillar). With the driver’s door open, you will find the label attached below the door lock post (st ...