2022 Denali here, been in 4 times for same problem, I have water running onto drivers side floor from under the dash, only seems to be when truck is parked with drivers side lower than passenger side. They can’t figure it out…. I have a case opened with gm, also since they dropped my headliner I now have head aches when I drive the truck, I think they messed up the active noise canceling system, has almost a low drone sound or buffeting in my ears, and the truck shakes in the backseats while driving, nobody can fix anything…… best 85,000 I’ve ever spent… smh