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 PlayersFront Bumper Fascia Support Replacement Bumpers Front Bumper
Front Bumper Fascia Support ReplacementCalloutComponent NamePreliminary ProcedureRemove the headlamps. Refer toHeadlamp Replacement.1Front Bumper Fascia Support Bolt (Qty:-4)Caution:Refer toFastener Caution.Tighten10-Y(89-lb-in)2Front Bumper Fascia SupportProcedureSlide forward and upward. ...