so i have siimilar situation. just replaced dead battery and lost some function at rear window.
window goes up/down from the button on dash.
but- turning key at the rear gate doesnt work the window up and down anymore.
wipers dont work. its 65F outside so no idea if defroster might be working or not.
and i need new battery for the key fob so no idea if those buttons will work the window up/down, but im guessing no?
in any case, is this a re-initialize situation? or more likely i have a blow fuse somewhere?
thanks