Are you kidding me, what kind of an engineer designs a cargo area that slants toward the tailgate? I bought a 2018 Tahoe about 2 months ago, and when the 3rd row is folded down, the cargo area pitches to the tailgate. So when we go to the grocery store, the bags slide toward the back and spill out when I open the tailgate. I should mention, this doesn't only happen with groceries, everything that is put back there slides toward the rear. I suppose I could buy a WeatherTech cargo liner that would probably help, but there are times I need to use the 3rd row, and I really don't feel like taking the liner in and out all the time. Plus, I am not always at home where I could put the liner in the garage when I need to use the third row, so now I would have the problem of what do I do with the liner now that I raised the seats. When I pointed the slant out to the dealer, I was told that it is normal. Is the dealer correct, is this normal, or has anyone had their dealer resolve this problem?