2019 RT SE6. Oil level is ok. Checked it per label by dip stick after a 100 mile ride, motor idled till fans came on then off twice, Checked dip stick within 2 minutes. Problem is that trike won’t go into reverse. Stuck in first gear. Shut motor off and pushed into parking slot. Bike set for about 2 hours then started and worked okay rest of day. The problem came back a few times. Next symptom was the trike would not manually downshift near the end of a 35 mile run. It would automatically downshift but not with lever on handlebar. Could not get in neutral when stopped or reverse. Gas the trike up and turned trike on and it shifted automatically to neutral then I put it in first okay. No codes listed in settings menu. I’m still 2 years on original battery at 23,000 miles. What do I check other than the oil which is new? Help please.