It is the glass/mirror section that you adjust to see that is loose
Wednesday, November 23rd, 2011 AT 2:54 AM
My reference doesn't list the Holden. Most mirrors can be tightened with a screw in the front part of the mirror. Some mirrors require removal of the door panel to tighten. If you can upload a few pictures, I might be able to see where the adjustment/tightening screw is.