Every time I move while driving in my 11 XS the belt buckle of the drivers side seat moves against the inner leather of the seat causing a really annoying prolonged CREAK. It doesn't seem to happen on the passengers side. Any solutions???

 

Try some leather cleaner to lubricate it. Or attach a piece of felt to the buckle with double-sided tape.

 

Funny you say that...I had a rattle that drove me crazy, it was the belt buckle against the seat. Fix? Move the buckle.

 

I had the same thing happen on my 2010 passanger side. I thought it was my OCD coming through!!