This bulletin provides information about changes made to the rear shelf trim to address customer concerns of a rattling sound heard while driving over bumpy / rough roads. The sources of the rattle have been identified as: ? the mounting points for the center stop lamp where it fits into the package shelf ? the package shelf itself rattling against the inside of the rear glass ? the rib and/or stand portions located on the underside of the package shelf contacting the shelf portion of the vehicle body.