See also:

Horn
Press near the horn symbols or press on the steering wheel pad to sound the horn. ...

Heated Mirrors
The vehicle may have heated mirrors: (Rear Window Defogger): Press to heat the mirrors. See “Rear Window Defogger” under Climate Control Systems  for more information. ...

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 ...