Just purchased a 2019 Chevy 2500HD and a 3 mo. free subsciption to OnStar came with it. For you that continue to use it, how well do you like the navigation system? We will try and use it some, but no...
We used it with our 2015. We had to make sure we parked our car on a street, not in the hotel parking lots as it seemed to get confused in the parking lot. I found while it understood my wife's voice, it had trouble understanding my voice, even when I spoke a slowly and clearly as I could. I prefer maps and a compass and we can usually find our way fairly quickly. But then I'm an old guy. If we were doing a lot of travelling in foreign (to us) areas I would get a separate GPS direction system.