This happened last week, one of the rear doors was rattling really bad. Once I got to inspect it closer the bolt to the lock was gone not broken. I checked the other bolt on the other side and it was loose and about to come out. I checked the front lock bolts and they were fine. I removed the one bolt and took it to find a replacement. Thanks to Ace Hardware found a replacement bolt. Check your lock bolts. If you need a picture I had take one if needed. It was an easy fix.