rear window

I was driving with my family with all the windows open and when we were going to start to hit the highway I started putting the windows up but for some reason the passenger rear window would not roll up. I thought maybe it had the child lock but after hitting all the buttons it would not come...

It worked when I bought the truck, but stopped Working somewhere during the first 1000 miles. I push the button and nothing happens. I will get it looked at at10k maintenance, but since I still have 4000 miles till then, a, wondering what I might check to troubleshoot cause. I haven’t looked...