This is somewhat normal for aging coaches, even coaches 5 years old or so.
There is a company in the Fort Meyers, FL that will remove it for you or give you the materials that will allow you to remove it yourself. They also can come to your site at one of a few campgrounds in the area to remove it for you.
Go online to ....uglyshieldremoval.com.
2015 Newmar Dutchstar 4369
2013 Chevy Equinox