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 Detroi ...

Collision/Detection Systems
If equipped, select the Collision/ Detection Systems menu and Park Assist will be displayed. Park Assist This allows the Ultrasonic Parking Assist feature, audible only, to be turned on or off. ...

Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for others to see the front of your vehicle during the day. Fully functional daytime running lamps are required on all vehicles first sold in Canada. T ...