So as the title says, my driver's side rear window auto up doesn't always work on my 2017 Fusion Titanium. I can do the relearn and auto up will work until I roll the window down more than halfway to which point I need to do the relearn again. Note that auto down always works. It's quite an odd behavior. I figured it has to be something with a position sensor (or however it knows what spot the window is at). During my research someone had said on another forum to pull power to the window while manually operating it to reset the regulator control module, but that didn't help. It's not triggering any sort of pinch detection so I find it odd that it's just that window and just auto up. I figured I would reach out and see what others think, possibly a bad window regulator assembly?
