Passenger Window Won't Close

So… My passenger window won’t close. Will open using either the driver’s door or passenger door switches, or the key in the door/FOB convenience open. it closes perfectly fine, nice and smooth with no noise using the key in the door, so it can’t be a regulator issue. Can’t hear any noise for it even trying to close using the switches. Any ideas?

Problem fixed itself somehow yesterday… Had a few weird things going on due to low voltage it seems, car sat for a little while while I was working on & driving the newer project & riding the bike around with the weather we’ve had.

That’s a weird one but glad the problem went away, the likelihood of both driver and passenger switches both going bad at the same time is low so there’s something else at play here. I hope it’s not a short in the wires that could be a PITA to troubleshoot. As our cars get older little things like this is prone to pop up.
Hopefully that was a fluke in your case.

My driver’s side switch for the passenger window quit rolling that window up recently. I have to reach across and hit the bottom on the other door to close it. Kind of annoying. In my case, it’s definitely a switch problem, but honestly I probably won’t bother fixing it unless the passenger button quits working too.