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 PlayersShifting out of Park
To shift out of P (Park):
Apply the brake pedal.
Turn the ignition on.
Press the shift lever button.
Move the shift lever.
If you still are unable to shift out of
P (Park):
Fully release the shift lever
button.
Hold the brake pedal down and
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