See also:

Radio(s)
VOL/ : Press to turn the system on and off. Turn to increase or decrease the volume. SOURCE: Press to choose between FM, AM, XM™, if equipped, CD, or AUX. MENU/SEL: Turn to select radio station ...

Selecting Tracks on an iPod or USB Device (Vehicles without a Navigation System)
1. Press and hold or while listening to a song until the contents of the current folder display on the radio display. 2. Press and release or to scroll up or down the list, then press and hold ...

New for 2011
The Sierra Hybrid gets GM's OnStar 9.0 telematics system that GM says provides better voice recognition. GM also said they have worked to cut down on the amount of wind noise occupants hear. ...