2000 C5 Rear View Mirror Problem
Pro
Joined: Dec 2004
Posts: 681
Likes: 2
From: The Woodlands TX
I've got the same problem. I don't think there is a way to tighten, but I think I've fixed it another way ... take the "arm" (between the ball on the windshield and the ball on the mirror) and push it all the way up, then readjust your mirror down. This did the trick for me -- hope it works for you. 
