I feel your frustration! I have a 2021 SX Prestige - Nightfall Edition and have the same issue. My local dealership in Sunrise, Florida (Rick Case KIA) told me to buy a product called “Chemical Guys Chrome Polish” take a picture with me holding it in front of my vehicle and they will replace the window trim (nightfall) but it’s a 1 time fix & I would have to use this every time before washing/detailing my vehicle!!! I filed a claim with KIA Corporation and through many conversations with associates & supervisors they seemed shocked that the dealership would tell me such a thing. 1 Supervisor told me it’s covered under my paint warranty so he escalated my claim because 5 weeks in and no response from the dealership. Today 9/16/22 I received a call from a KIA Corp. supervisor “Heather” who told me an area supervisor for South Florida spoke to the service manager at Rick Case KIA and the decision was made and explained to me prior… The Results: This Nightfall peeling issue is ‘NOT’ covered under warranty (Like 1 supervisor from corporate said) and it’s cause by, “OUTSIDE INFLUENCES” (hahahaha BS. Now you can’t even hand wash your car without paint coming off) It seems to be a different call per state & dealership as to fixing this issue but this is clearly a manufacturing plant issue and terrible or lack of QC on this vehicle. This Nightfall package is discontinued for a reason and KIA knows it but won’t honor the problem so I’m done playing games and contacted an Attorney!!!!!! Good-luck to every Telluride Nightfall Edition owner who’s having this problem.