See also:

General Information
For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks: ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

2012 Buick Regal Review by Warren Brown
It was a good car, but something less than the “high-performance variant” of the Buick Regal promised for market delivery in the spring of 2012. That will be the overtly sporty Regal GS, with ...