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 PlayersEvaporative Emission Canister Vent Solenoid Valve Replacement Emissions Evap Evap Canister Purge
Removal ProcedureRemove the evaporative emission (EVAP) canister. Refer toEvaporative Emission Canister Replacement.Rotate the EVAP canister vent valve clockwise to release from the locked position.Remove the vent valve from the EVAP canister.Installation ProcedureInsert the EVAP canister vent solen ...