I have a 2020 AT4 and the coating making the trim "black chrome" is starting to peel off, leaving of course, chrome. I spoke to my dealer and their response was its only warranted against rust through. Which is great on plastic parts. It's a minor complaint compared to the engine and trans problems others have had but still, barely over two years old less than 17k miles and washed every week. Not Professional Grade. This photo is just one spot, on the side so it is not a stone chip.