Jerry, we have a 2008 Bounder and our paint is also 'cracking.' When we were at Fleetwood in Decatur last summer we asked about it. We were told the cracking was a by-product of sun and heat. In other words, kind of normal wear and tear for its age and the fact it sets outside in our back yard, and we live in AZ. We have owned it about nine years now. We have noticed the darker colors are cracking more than the lighter colors in the paint pattern. We were also told there is nothing that can be done to stop it from getting worse except to store it inside, which would mean building a garage.
We do have the coach washed and waxed once a year. We don't know if this does anything to help with the issue.