See also:

Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for others to see the front of your vehicle during the day. DRL can be helpful in many different driving conditions, but they can be especially helpf ...

Lane Departure Warning (LDW)
For vehicles with LDW, it is intended to help avoid lane change collisions. It provides a warning if the vehicle is crossing a lane without using a turn signal. LDW uses a camera to detect the l ...

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 ...