I had tons of problems with mine as well, I've got numerous posts here detailing them, some of them the same or similar to yours, I finally had enough and traded it in. The dealer tried to fix them, but they were so random was next to impossible. I'm going to be waiting for either the cybertruck or the new tundra if that ever comes out before I get another truck. I've had a lot of fords and one Chevy and then this GMC, had problems with all of them, so think I'm done with American vehicles until they get their act together, if they ever do. Sent from my SM-N960U using Tapatalk