I too bought a 2016 Chevy Tahoe in Jan 2020 that appeared to be in excellent condition. Of course it had not even been driven much due to Covid in 2020. The hood and roof started to look bad in December 2020 but was near impossible to get appointments or anyone to answer calls because of Covid. It now looks absolutely horrible like someone took a wire brush and scrubbed it. I contacted the dealership and they will not do anything. Have you made any progress on your issue? I also have another friend that purchased from same dealer about the same time and same make and model as mine and hers did the same thing. They ended up having to pay to have it painted a couple months ago.
