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 vehicle from Google Maps™ or MapQuest.com. The OnStar mapping database is continuously updated. Visit www.onstar.com for coverage maps.
See also:
Universal Remote System Operation
Press and hold the appropriate button for at least half of a second.
The indicator light will come on while the signal is being transmitted. ...
Hitches
The correct hitch equipment helps maintain combination control. Many trailers can be towed with a weight-carrying hitch which simply features a coupler latched to the hitch ball, or a tow eye latched ...
Setting Preset Stations
To store presets:
1. Tune to a radio station.
2. Press and hold one of the six numbered pushbuttons for three seconds until a beep sounds.
3. Repeat Steps 1 and 2 to store additional radio stations ...