I posted this before, but now the problem is back. I have an '08 coupe, Z51, NPP exhaust, 6sp. man. the car has about 9800 miles, so I replaced the battery about 2 months ago. This took care of the problem until yesterday when I noticed the same issue again! I pulled the fuse as a temporary fix, but can anyone offer some insight? I really hope I don't have to replace the entire mirror assembly. I can live without the courtesy light if I have to. Any help is greatly appreciated.