Rearview Mirror problems of the 2002 GMC Sierra

GMC Sierra. I have had it in for the mirrors vibrating 4 times. I can not see 200 feet behind my vehicle at times as required by California vc 26709. GMC has called it a safety issue and blames it on the following in an email I received 12/23/03. After much discussion with technical sources, we have come to the following conclusions. The vibration in your mirrors is a characteristic of the vehicle. Therefore, swapping out the mirror with one of the same type, which is the only type your vehicle can accommodate, will not solve that problem. I think there should be a recall.

After a total of 19 visits to the GMC service department with no results mirror still vibrates arbitration through the bbb was attempted on 10-4-02. Results in favor of GMC arbitrator agreed mirror is mfg defect, but provided no assistance in getting it repaired. Other 2002 like vehicles were tested and found to have the same problem. This defect is make/model wide! all I want is the mirror vibration to stop. I really don't even use the mirror anymore creating a safety hazard. Dt.