Chrome & paint are 6 months while engine, drivetrain, etc are the full 2 years. However in rare situations they can cut a deal with you and the manufacturer. My wheel chrome started peeling and they were replaced at nearly the one year mark. But in order to make that happen we negotiated that I pay the install labor, shipping, tax, etc which I felt was very good of them given that technically I was out of date.
That said, this is my 2nd K9 in 3 years and the economy was better then so I'm sure that had something to do with it as well.
I'd say at the very least if you are past the 6 month time period, offer to split the cost or something. Better that than nothing at all. Now if you're under 6 months, I'd get a hold of the sales manager of that dealership or call BD directly to have them take charge of the situation.