Lexus LX Power Window Failure

Interesting. I've seen similar issues on other vehicles after battery replacements. Usually, the window motor loses its upper and lower limits. Did you try the standard window reset procedure? Hold the window switch down until the window is fully down, release, then hold it down again for a few seconds. Repeat the process for upward movement.

Yes, I've tried that procedure multiple times without success. I also checked the fuses, and they appear to be fine. Is there a specific sequence or tool required for the Lexus LX, or could it be something more complex, like a faulty regulator?

If the standard reset isn't working and the fuses are good, it's possible the regulator itself is damaged, or perhaps the body control module isn't communicating correctly after the power loss. I’d suggest further diagnostics at a workshop. They can read the error memory and perform specific initializations with the diagnostic tool.

Thanks for the advice. I took it to a workshop, and it turned out the window regulators needed to be re-initialized with their diagnostic tool. The repair cost me 290€.