I have had the same issue with my 2017 Yukon Denali XL. I purchased this vehicle last November 18, 2019 with 36,103 miles. In September 2020, I took the vehicle to my GMC Service Center in Delray Beach, FL, and was quoted $2,100.00 to rectify the issue (ironically, another customer showed up in a black Yukon after me with the same paint issue). GMC was willing to offer a 50% incentive towards the corrective action. I contacted GMC direct for more that 5 weeks without any assistance to accomodate my concerns. My vehicle will be 3 years old in 12/2020. I've painted dozens of cars through my years, and also managed an aircraft completion center for paint/interior. There is no way that my vehicle with 46K miles is damaged due to driving. A friend of mine with an Escalade (same year) had her paint issues covered completely with Caddilac.