Hello! I have a 2016 black Suburban with the same issue. I first noticed it a year ago as I was washing the vehicle, and the surface felt different on the hood. I thought a cat had scratched it. And just like others have said, now it looks like someone scratched the whole hood and the entire roof surface with sandpaper. I noticed this just days after the 3 year warranty expired. I had to take the vehicle into the local dealership to address the brake recall last year, and the manager at the dealership agreed that the paint looked bad then. It's so much worse now, and makes the vehicle look so much older so prematurely. Very disappointing and frustrating.
I've also had recurring problems with the infotainment system and screen not turning on, so then the backup camera, radio, clock, navigation and all of that is inoperative.
If anyone has had any success in addressing this paint issue, please let me know! There are a lot of us with this problem it seems.
Thanks!
Lisa