Last month or so, I experience an occasional 'clack' sound comming from right rear seat/door area. I could not locate if it is comming from interier or exterier. Sound is similar to that one which is produced when not used front belt fastener is touching the plastic on 'B' pillar. I checked almost everything to elliminate it, but have no success and I could not reliably replicate it for th eofficial complaint. It looks to be produced when the car is in some car body torsion situation like during reversing when one wheel is on the sidewalk and second one still on the street. Does anybody experience the same? I read the message from Josh2008, who mentioned some TSB investigation at his dealership, but w/o any detail yet.