See also:

Radio Menus
Radio menus are available for AM, FM, and XM, if equipped. Turn the Menu knob to open the main radio menu for that band. ...

GM Mobility ReimbursementProgram
This program, available to qualified applicants, can reimburse you up to $1,000 of the cost of eligible aftermarket adaptive equipment required for your vehicle, such as hand controls or a wheel ...

Hands-Free Calling
1. Push . System responds: “OnStar ready.”. 2. Say “Dial.” System responds: “Please say the name or number to call.”. 3. Say the entire number without pausing, including a “1” ...