Thanks for all the responses! The switch height was too high, causing it to be engaged all the time. I discovered if you pull the switch too far, it causes the switch to disengage. So, that's why my brake light would go off when I stepped on the rear brake.Try moving the rod at the bottom of the switch up and down. The spring connection will allow it. See if you can get the brake light to go out by pushing up on the rod. If you can, an adjustment to the switch height should handle the problem.