Has anyone been able to get this issue resolved? This 3rd row is advertised as lay flat can we make the fix or replace? I have to have this 3rd row lay flat! in the beginning I tought that because it was new it just needed to settle but it hasn't and the dealer is saying I'm stuck with it and if that's the case I just flushed $60,000 cash down the toilet and makes my 2017 Yukon XL useless because I can't put the dogs crates in it and I dog train 2 x a week when the dogs are in the crates they are at an angle and they slide all the way down to the gate. I believe this issue would qualify as a defect. GM needs to do something about it.