See also:

Reporting Safety Defects toGeneral Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this, we certainly hope you will notify us. Please call us at 1-800-521-7300, or write: Buick Customer Assistance Cente ...

Selecting the XM Band
Press the RADIO/BAND or SRCE button to choose between AM, FM, and XM. The last channel played in that band begins to play when that band is selected. ...

Vehicle Settings
See Vehicle Personalization for more information. ...