See also:

Auxiliary Roof-Mounted Lamp
If the vehicle has this feature, this button includes wiring provisions for a dealer or a qualified service center to install an auxiliary roof lamp. This button is located on the overhead console. ...

Cleaning the Mirror
Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water. ...

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” and the ...