See also:

Compass
Compass Operation There is a compass display in the upper right corner of the mirror. Compass Calibration Press and hold to activate the compass calibration mode. CAL displays in the compass ...

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 ...

Satellite Radio Antenna
For vehicles with XM satellite radio service, the antenna is located on the roof of the vehicle. Keep the antenna clear of obstructions for clear radio reception. ...