See also:

Setting the 12/24 Hour Format
1. Press the CONFIG button and select Time Settings, or press . 2. Highlight 12/24 Hour Format. 3. Press SELECT to select the 12 hour or 24 hour display format. ...

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 ...

Service
For service and parts needs, visit your dealer/retailer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks: ...