Dealer Checked my Hummer. They said all H3's have the same problem

[dukein]

I have a Basic Pkg with 1822mi on it but haven't heard any rattling noise (knock on wood). I went up and down the Sierra Nevada Mountains/Lake Tahoe area taking the toughest climb (hwy#50 & Kingsbury Grade) over the weekend but did not noticed any, perhaps my stereo was too loud.