Upstate NY

Mine had a major problem during Regen. I've gone around 1,350 miles or so. Around 1,000 miles, check engine and DEF warning light came on. Info center told me to service the DEF system or it would go to reduced power. Drove it home, other half cleared the codes for me cause it happened on a Saturday and could not get to dealer. Drive fine until Thursday, 1,250 miles, same lights came on and motor cut out and shut off. Couldn't get it to restart. Waited 1/2 hour and it restarted. Drove 20ish miles, same thing...shut down and on the side of the road. Then it did it every 10 miles until I got within range of the dealership to send their wrecker. Dealership saying it's a crank shaft position sensor... I doubt that's the issue, but they're doing what GM is telling them to do. DEF is still on full... I hate having problems with a truck I haven't even made the first payment on. Twice more, I'm sending it back for lemon law and ordering a 6.2L. Never had trouble with my 2018.