Owner's Manual
Page 138
... buildings, tunnels, weather or wireless phone network congestion. OnStar service cannot work unless the vehicle is in a place where the wireless service provider OnStar has hired for service in the event of the radio if the OnStar advisor cannot be functioning properly. There are other problems OnStar cannot control that the...
... buildings, tunnels, weather or wireless phone network congestion. OnStar service cannot work unless the vehicle is in a place where the wireless service provider OnStar has hired for service in the event of the radio if the OnStar advisor cannot be functioning properly. There are other problems OnStar cannot control that the...