My brand new 2018 Sierra has had sitting water on the passenger side floors front and rear since I picked it up new last month! And the stench of musty moldy wet floor carpeting is overwhelming! I dropped it off at dealership yesterday. I want and expect the leak(s) to be repaired and the nasty carpets to be replaced. I’ve been reading about these leaks on 2014-2018 Sierras and Silverados. Are there any relevant TSBs or recalls yet?