Hello everyone! I own a 2001 Tahoe LT with the 2nd row 60/40 seat. My seat bottom latches in place like usual, but the actual seat back when I put it in the up-right position doesn't lock in place (it goes back and forth if you pull on it). I wanted to see why it is doing this and how to fix it if possible. I don't know if this matters, but I have an amp underneath the seat and I can't fold the seat back down all the way, maybe it has to fold all the way down before it locks back in place in the up right position? I would rather not try and move the amp if I can fix it without doing that. Thank you for your help