This is the second time I've had leaking water in my new 2017 Sierra Denali. First time was the xm antenna and now it's looking like a clogged AC drain. Noticed steam coming from the AC vents then looked on the passenger floor and my rubber floormat was soaked. Then turned the AC to floor position and I got a waterfall. Dealership is going to take care of it on Monday because I need the truck to tow my boat this weekend. I'm happy I have the all weather floor mats. Not a drop of water on the carpet.
Can't believe the AC drain tube would be clogged with only 8k miles on it.