The multi-band antenna is on the roof of the vehicle. The antenna is used for AM-FM radio, OnStar, the SiriusXM satellite radio service system, and GPS (Global Positioning System), if the vehicle has these features. Keep the antenna clear of obstructions for clear reception.
If the vehicle has a sunroof, and it is open, reception can also be affected.
Radio Reception
Audio PlayersBrake Dust Warning
Warning:Avoid taking the following actions when you service wheelbrake parts:Do not grind brake linings.Do not sand brake linings.Do not clean wheel brake parts with a dry brush or withcompressed air.Some models or aftermarket brake parts may contain asbestosfibers which can become airborne in dust. ...