Radio
To select preset or favorite radio stations:
Press and release 
or
to go to the next or previous radio station stored as a preset or favorite.
See also:
OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect
to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic
Services.
The OnStar system s ...
Listing Stored Numbers
The list command will list all stored numbers and name tags. ...
Trailer-Tow Mirrors
If the vehicle has towing mirrors, they can be adjusted for a clearer view of the objects behind you.
Manually pull out the mirror head to extend it for better visibility when towing a trailer.
Th ...