These lights (the ones above the back window on either side of the third brake light) on my friend's truck were staying on while it is parked. I could not find any switch for them in the cab, and the owner's manual does not mention any switch. Since the truck is seldom used, I just disconnected the battery so it would not run down. But how are these supposed to be controlled? It is a fleet model truck with hand crank windows etc-- no fancy features-- and the electrical system should be completely stock.