I've noticed that the hardcoat layer on both of my headlights is starting to peel and flake off. I began to notice it about a year ago and it's been getting progressively worse. I'm very disappointed because it makes what otherwise is a mint condition truck look like a POS in the front.
I've seen other Nissans (primarily used 350Z's) with this same problem as well due to the headlight design and constant UV exposure. It primarily affects the horizontal surface area of the headlight near the fender. I thought about polishing them, but the coating seems to be some kind of hardcoat layer manufactured into the plastic. The plastic under it doesn't seem as glossy as the hardcoat layer on top. Polishing them might make them look worse.
Has anyone else experienced the same problem with their headlights? If so, is their anyway I can get them replaced or pro rated under some kind of warranty by saying it's a safety issue or something? I seems like a factory defect to me because the headlights shouldn't be peeling and flaking after only 6 years.