Your handbrake light switch is slowly dying. Mine did it for years only on cold days then it stayed on constantly if it wasn't above 50* outside. I disconnected it because I really didn't care. I've got a newer one to replace it with in my donor car, but getting the car running has been more important.

Erik P.
Official 2GNT thread Hijacker
Some say that he's driven over more Covenant than he's shot, and that his grenades aren't where you'd expect them to be...
All we know is, He's not The Stig... But he is The Stig's Spartan cousin!