My 2010 Terrain had a perfectly working rear vision camera until last week. Now it has considerable glare and sun distortion (sun spot and white light vertically on the screen). GM Service Manual #PI0385 says that this is "a normal operational characteristic." Reading about thee automotive fish eye lenses shows that the glare and sun line are prevented by proper alignment and a lens relective coating. Are terrain owners accepting GMs statement? Does anyone have a solution to a problem that just suddenly appears after 2 years?