Reactivation for Subsequent Owners
Push 
and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle.
The Advisor will update vehicle records and will explain the OnStar service offers and options available.
See also:
Inserting a CD (Single CD Player)
Insert a CD partway into the slot, label side up. The player pulls it in and the CD should begin playing. ...
Finding a Station
BAND: Press to switch between AM, FM, or XM. The selection displays.
(Tune): Turn to select radio stations.
SEEK and
SEEK: Press to go to the previous or next station and stay there.
To scan s ...
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. ...