I had this happen to me for the first time this weekend. I was out riding octello wells for the first time. I marked where I parked the truck to make sure we could find our way back. About 4 hours in it locked up. I noticed the map stopped working, the dynamix wouldn’t change settings, it said I was going 9 miles per hour no matter how fast I was going, and it said I was in low gear no matter what gear I was in. Luckily I had a backup mapping system to find my way out. What I was really afraid of was turning the machine off, I was afraid if I turned it off and the computer thought it was still in low it might not start because they need to be in park or neutral to start. I just didn’t turn it off the rest of the time we rode. Luckily it was our last days so I loaded it up and headed back home to Missouri. I’m going to go out and play with it tomorrow.