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 PlayersWork Stall Test Warning
Warning:One or more of the following guidelines may apply whenperforming specific required tests in the work stall:When a test requires spinning the drive wheels with thevehicle jacked up, adhere to the following precautions:Do not exceed 56-km/h (35-mph) whenspinning one drive wheel with the other ...