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 PlayersChannel Plate to Valve Body Spacer Plate Assembly - Channel Plate Side Automatic Transmission Unit
Channel Plate to Valve Body Spacer PlateAssembly-–-Channel PlateSide(2)Line(9)Regulated Apply(10)Exhaust Backfill(11)Actuator Feed Limit(12)PCS Line(13)PCS R1/456 Clutch(14)Shift Solenoid(15)R1/456 Clutch Feed(16)R1/456 Clutch Feedback(18)PCS 35 Reverse Clutch(19)Reverse(20)35 Reverse Clutch Feed( ...