Lots of conflicting information out there. Some say do a battery reset, some say needs to be flashed. The issue specific issue I am running into is that they work fine below 5mph and shut off above 5mph...I haven't found anyone who has that exact issue yet. What I am seeing is a lot of folks who have done this and the sensors are constantly going off when nothing is in front of them. Mine work perfectly below 5mph. And if I turn them off at start up they stay off just fine. It's the speed issue.