Some door locks will trigger the servo every time you hit the heron (older-ish cars) and some have a sensor. Not clear to me if it’s a remote sensor or some sor

Some door locks will trigger the servo every time you hit the heron (older-ish cars) and some have a sensor. Not clear to me if it’s a remote sensor or some sort of smarts in the local mechanism. Given some of the chip shortages of recent year, I’m curious how the teams responsible for those trade offs made the balance.