See also:

Sound Menu
(Sound): Press this key or press CONFIG to access the Sound menu to adjust the treble, midrange, bass, fade, balance, and Digital Signal Processing (DSP). The system automatically stores audio ...

Wagon
To lower one or both of the rear seatbacks: 1. Pull on the lever, on the top outboard side of the seatback, to unlock the seatback. 2. Fold the seatback down. To return a seatback to the up ...

Navigation
OnStar navigation requires the Directions and Connections service plan. Push to receive directions or have them sent to the vehicle navigation screen. Destinations can also be forwarded to the v ...