I’ve no first-hand experience with something like this, but it’s definitely not “common”. A buddy of mine had something similar where his XM signal would be intermittent and it turned out that the software running the radio unit would not complete its boot cycle and would load some items (USB) before others (XM).
If it were me, I would insist that the dealer fix the issue thoroughly and give you a loaner while they’re working on it. They should check TSBs from GM and if they still can’t figure it out, they need to pick up the phone and call GM directly to take care of you. Bugs sometimes do happen on new cars, but there is no reason that they can’t be fixed.
Congrats on the ‘Nox, by the way, and keep us up to date if you can.
