See also:

Using the Call Command
1. Press and hold for two seconds. The system responds with “Ready” followed by a tone. 2. Say “Call”. The system responds with “Call using <phone name>. Please say the name ta ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Erasing Speed Memory
When you turn off the cruise control or the ignition, the cruise control set speed memory is erased. ...