So I was driving around yesterday when I heard a bang or knock type sound. As it became more frequent and louder I became alarmed and curious. So I went under the hood today and noticed right away that there was a bolt hole staring at me. Right next to it was a loose bolt. I wanted to see how loose when it came right out. It is the upper transmission mount bolts, 2 of the 3 snapped right in half. I will be going to the dealer tomorrow to have them fix it, hoping its under warranty. I am posting this to find out if anybody else had this issue. my cruze is 6 months (2013 old with 12k miles!