So taking a road trip and figured I'd stop at rest stop and take a rest. Figured I'd leave truck running while taking snooze. After approximately 1 hour ( not sure exactly as I was sleeping) truck shuts off by itself. I was inside sleeping, key was in my pocket, all exterior lights were off, and doors locked. Woke up because my cpap shut off. I realized truck shut off, so I thought maybe because key was in my pocket. Thought maybe it was because I didn't put the key fob in the little square hole in the console for relearning transmitters. So I put key in the relearn cubby, and start truck and go back to bed. Once again, approximately 1 hour later truck shuts off again. Kinda annoying. Good thing its not super cold out, otherwise probably freeze to death. Just need truck to stay running so I can use my cpap machine and stay warm.
Any thoughts?
Truck is a 2020 3500 Duramax LTZ, push button start.