See also:

Conference Calling
Conference calling and three-way calling must be supported on the Bluetooth phone and enabled by the wireless service carrier to work. To start a conference while in a current call: 1. Turn ...

OnStar Mobile App
With an iPhone® or Android™-based mobile device, an OnStar mobile app can be downloaded. The vehicle can be remote started, if equipped, or the doors can be unlocked from anywhere there ...

To Transfer Audio to the In-Vehicle Bluetooth System
The cellular phone must be paired and connected with the Bluetooth system before a call can be transferred. The connection process can take up to two minutes after the key is turned to the ON/RUN ...