raress9596
Full Access Member
Well I just had this same issue with my Tahoe. I need to check the drain holes in it. I hate that this is an issue. I will report back after I check on it.
I was the original poster way back. I almost forgot to look at the bottoms of the doors in my 2015 till just now. Remove the plugs at the bottom of your doors and your good to go. The window seal will never keep water out. Don't believe they were intended too. I've owned a long list of GM trucks and never had a door rust.