So I bought my Honda pioneer 520 today and after a 4 hour ride the transmission sticks on 5th or 4th gear. 1st time it was in manual and went to 5th by itself then shut itself off. Hubby had to manually shift it down with the wrench provided under the seat. Got it back up and running. Less then 1000 yards and it's in automatic and it switches itself to manual and flashes 4th gear and won't go above 15mph. We put it back to truck and it shuts off (thankfully at the truck) and we had to push it up the ramps and into the bed. So now it's back at the dealership getting worked on.