Lexus UX Power Window Failure

Sounds like a window regulator initialization issue. I had the same problem with my old Renault after the battery died. The windows just wouldn't respond. Did you try any kind of reset procedure with the window switch?

A reset procedure? Can you explain what you mean?

Yes, on my Renault, there was a specific sequence of holding the window switch up and down for a few seconds to reset the regulator. However, I suspect in your case, with a Lexus, a proper initialization via a diagnostic tool is necessary. It might be best to visit a workshop.

You were right. The workshop confirmed it was a window regulator initialization issue after the battery replacement. Cost me 290€, but all sorted now. Thanks!