I am having a similar issue when going down the road and hitting bumps. It is very concerning when it comes in so much that I can no longer adjust and lose the ability to see next to me. This is a safety concern since it also causes my side alert from working. This usually only seems to happen the most when I am towing since the mirrors are extended, which also makes it more of a safety issue. It seems to reset when I stop and get out, but the last time this happened I could barely see out the side since it was so far out. The only way I was able to reset it was when I folded the mirrors in which seemed to reset the driver side correctly. Any ideas or what I need to tell the dealer when I bring it in would be very helpful.