If your camper is that new, there is no way that the sealant should be peeling back from the moldings like that. It almost looks like the moldings were oily or had silicone on them when installed.
I would talk to your dealer about it before touching it. I would be tempted to demand that all of the old sealant be removed, moldings cleaned, and new sealant applied.
And that is not Dicor self-leveling sealant that is used on those seams, or at least is shouldn't be.
There is a really good quality seam sealer, but the name of it escapes me just now. I am sure that others will remember and post. Anyone?