It's a 2019 and still under full warranty. Take it to the dealer, it's not something you have to deal with on your own (yet).I purchased a 2019 GT about 2 weeks ago. Yesterday my driver window started the up & down activity I'm reading about here. First I thought the convertible top wasn't completely closed, so I reopened & closed it. Nope. Next I did the door. Nope. I rolled all the windows up & down a few times. Nope. So I went to google and ended up here. It's disappointing to learn that this is something Ford is likely aware of yet allowed to continue. This is my first Ford. It was important to me to buy an American automobile and support our economy. Im hoping this is a one-off fix.