Was at the Dealership the other day and they had a 2016 Polaris RZR 900 S EPS. I took a look at the voltage regulator and it has been changed for 2016. They must know somethings wrong with them to change the voltage regulator. Mine has had 3 voltage regulators, 2 stators, a wiring harness and battery replaced. It has been to the shop 5 times so far and has been at the dealership 106 days as of today. Its still broken and Polaris or the deanship does not know whats causing the problem. Its not charging. I would consider getting a 2016 instead of the 2015 if your in the market for one. Take a look at the pictures.
