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 ...

Conference Calling
Conference calling and three-way calling must be supported on the Bluetooth phone and enabled by the wireless service carrier to work. To start a conference while in a current call: 1. Turn or pre ...

Add-On Electrical Equipment
Notice: Do not add anything electrical to your vehicle unless you check with your dealer first. Some electrical equipment can damage your vehicle and the damage would not be covered by your warran ...