Exterior Rearview Mirror problems of the 1998 Chevrolet Camaro

I own a 1998 Chevrolet camero which I purchased new. Since I have owned this vehicle the cabling system that manually controls the driver's side mirror has broken 4 times. The previous 3 times it was repaired under warrenty. From what I understand they had to replace the entire mirror each time. The cable has broke again and now is no longer under warrenty. I don't know how much of a problem this has been in other similar vehicles. When the cable breaks the mirror moves inward out of adjstment and cannot be set by any other means. Not having a functional driver's side mirror is extremely dangerous.