See also:

Customer Satisfaction Procedure
Your satisfaction and goodwill are important to your dealer and to Buick. Normally, any concerns with the sales transaction or the operation of your vehicle will be resolved by your GM dealer’ ...

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 ...

Transmission
Automatic Transmission P: Park R: Reverse N: Neutral D: Drive Manual Mode Move the selector lever from D (Drive) to the left. Press the shift lever forward (+) to upshift or rearward (&# ...