I bought 4 of these on 11/17/16 and they worked fine but when it got colder than 20 degrees all winter the low beams came on and when it got warmer it went off . Now it's on all the time. There is enough air in the tires. I don't know what to do now. I don't know which sensor is the problem or if they are all. That's a lot of money to turn the lights back on.