If you don't feel like desoldering, just fill the button depression with epoxy. It's what we did with our Scion xB. And then it would start panicking on its own

If you don't feel like desoldering, just fill the button depression with epoxy. It's what we did with our Scion xB. And then it would start panicking on its own, at which point we returned to the dealer and told them to take the whole damned thing out. Which they did without charge.