See also:

Rear Underseat Fuse Block
...

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 ...

Unlock Feedback (Lights)
When on, the exterior lamps will flash when unlocking the vehicle with the RKE transmitter. Press SELECT when Unlock Feedback (Lights) is highlighted. Turn the Menu knob to select On or Off. ...