See also:

Warranty
OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information. ...

Call Waiting
Call waiting must be supported on the Bluetooth phone and enabled by the wireless service carrier. ► Press to answer an incoming call when another call is active. The original call is place ...

OnStar® Hands-Free Calling
OnStar® Hands-Free Calling allows eligible OnStar® subscribers to make and receive calls using voice commands. Hands-Free Calling is fully integrated into the vehicle, and can be used with OnSta ...