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 PlayersRadio Antenna Cable Extension Cable Replacement Entertainment
Radio Antenna Cable Extension Cable ReplacementCalloutComponent NamePreliminary ProcedureLower the headlining trim panel where needed. Refer toHeadlining Trim Panel Replacement.1Radio Antenna Cable Extension CableProcedureDisconnect the electrical connectors at each end of theantenna.If the antenna ...