Mine done this while actually turning into the dealer for service the other day for first time, no trailer just truck only. The service advisor looked at at , went and got the tech, and : on the message info screen, he hit down until it read : recalibrate steering or something like that , took the truck to the back lot and done left and right tight turns and no problem sense, maybe what this is I cant tell w/o feeling for myself. He showed me what to do if it ever occurs again and no tools are needed, just a few minutes and an open lot for room.