Any paint issues have to be caught basically at the dealership at the time of delivery. Once it leaves the dealership, you're basically on your own. If you read ANY manufacturers warranty regarding paint and corrosion, they're only guarantee is that the body will not have holes in it due to corrosion for xx number of years/miles. Your paint may be flaking off, but as long as there aren't any holes due to rust, the warranty won't cover it. The bumper to bumper 3/36 warranty might cover paint defects, but beyond that, if it's not rusting through, you're out of luck.