4-door or two?
if it's a 4-door & one of the buttons you're asking about is square, not rectangular, push it so it's popped OUT, get in the back seat & try to roll down the rear windows... bet cha they won't go down. it's a rear window lock button.
the other one, if it's rectangular, is probably the window fuse breaker... press that one so it's popped out & none of em will work
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