Brand new 2021 Yukon slt wet floor

[ZeroDark30]

Yep, my car has this too. Damp drivers side floors under mat was soaked. Happens without rain and with rain. Taking it to dealership tomorrow. Thanks to everyone else who posted this issue.

 

[Micahsd]

That’s weird…if you take a white paper towel to soak up a little does it appear clear?

 

[ZeroDark30]

That’s weird…if you take a white paper towel to soak up a little does it appear clear?

Yep. It’s definitely water. Ruled out the sunroof drain tubes, loose door seals, windshield leak, or XM antenna AKA Shark fin. Had to hang a Damprid thing to trap the moisture in the cabin to help get rid of the musty smell.