Avalon power windows failure after battery replacement

I had a similar issue with my Toyota Avalon (though not the same year). It sounds like your window regulator lost its initialization. Have you tried resetting the window regulators? Usually, you have to bring the window all the way down, then all the way up and hold the button for a few seconds. Does that do anything?

Thanks for the suggestion. I tried that procedure, but it didn't work. Do I need special tools or software to reset the window regulators?

No special tools should be necessary. However, it sounds like the reset procedure isn't working for you. In that case, there might be a deeper issue with the window motor or the regulator itself. If the usual reset does not work, I suggest you go to a workshop.

Thanks. I took it to a workshop and they initialized the window regulators for 290€. Appreciate the advice.