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 PlayersWindshield Replacement Windshield
Special ToolsJ 24402-A Glass Sealant (Cold Knife) RemoverJ 39032 Stationary Glass Removal ToolUse a urethane adhesive systems which meet GM Specification GM-3651GRemoval ProcedureNote:Before cutting out a stationary window, apply a double layer of masking tape aroundthe perimeter of the painted surf ...