See also:

Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard. If the light next to the OnStar buttons is red, the system may not be functioning properly. Push and request a vehicle diagnos ...

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. ...

Listing Stored Numbers
The list command will list all the stored numbers and name tags. Using the “List” Command 1. Press . The system responds “Ready,” followed by a tone. 2. Say “Directory.” 3. Say “Ha ...