See also:

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. ...

Brake Adjustment
Every time the brakes are applied, with or without the vehicle moving, the brakes adjust for wear. ...

Interior
The cabin utilizes premium materials, and there is an optional navigation system. The Regal has a sizable trunk that measures 14.3 cubic feet, and there is a wide opening to both the cargo area ...