I had several problems including EPS light,wound not start, not shifting into gear and transmission seeming to slip. The dealer found a loose ground wire. They tighten it and I rode last weekend about 40 miles. No problems.
I admit I was very discourage as I had saved for 3 years for this purchase. When it didn't function correctly I was mad. So I understand those same feelings in the people who are having problems. I do believe there are some issues with the pioneer. I'm not sure if they are engineering or assemble issues. I hope assembly,,,,as these are frustrating but fixable.