I purchased a 2016 about six weeks ago. The transmission shifted hard from 2nd to 3rd most of the time and felt like it did not want to down shift alot of times. Took to a transmission shop I trust and they are upgrading the thermal bypass valve and reprogramming the TCM with a custom program. ( be aware that this will void your warranty). If I have any issues with the drive train I will have to have the TCM set back to factory before sending it to the dealer. I have also had diff issues, my tires spin all the time in the rain and at one point after the tires spun the left rear locked up. Had to stop and backup to free it up. (Sucks that I am not enjoying my new truck!)