I feel like I should update everyone here, thank you to all for providing a lot of useful information in this thread. At one point my dealership did think there was a fault code related to the telematics system, so that part was replaced,by which I think they meant the modem. Unfortunately, while I have had much longer stretches of the system working, it continues to go out randomly for usually less than a day at a time. Also hopeful for a software fix, which i hope would maybe be more definitive.