Supersedes Technical Service Bulletin Group 66 number 12-20 dated April 9, 2012. A loud noise is heard when the outside mirrors are folded in or out. The noise originates in the metal spring inside the hinge area of the mirror housing. This spring is used for stabilizing the mirror when the vehicle is driven over rough roads to minimize mirror glass shake. When the mirror housing is folded in or out, the spring must turn or twist with the movement of the housing. The bottom and the top of the spring sit on a plastic base and due to increased friction at these contact points, the spring will skip along the plastic base during the folding operation and creates the noise. The normal functionality of the mirror is not affected.
