John, that is a switch
, back when the awning lights came out on the 2014's everyone was complaining they were to bright. A few us installed dimmers. The only thing I can think of would be a bad ground to the LED lights. The 15's were the first year for the door awning LED lights. I installed LED's on my 14, but the factory is probably using the same ground as the awning lights. Are the LED lights on the same control panel? If so, might check to see if the plug is full seated.