OnStar

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Playing a CD
Selecting a CD Track Tracks can be selected using the seek buttons, TUNE/TONE knob, or MENU/SELECT knob. To use the seek buttons: Press to go to the start of the current track, if more than ...

Sedan and Wagon Base Model
From the inside, use the door lock knob on the top of doors. ...

Cabin Luxury
The redesigned 2008 CTS was one of the prime examples of GM's renewed commitment to interior quality, and the design has held up well over the past few years; it still looks modern and inviting in ...