I have a 2016 Pioneer 1000-3 with 4500 miles on it and the other day the trans would slip in 1st 3rd and 5th. Then after an hours or so it randomly stopped no more slip in first and the 2-3 shift and 4-5 shift. But now it's jumping forward when in gear. It lets me shift into H,L and Reverse but once it's in that gear it wont let me move the gear selector. I have to shut it off put it in park start it back up and then I can select the gear again. Any help would be much appreciated.