I'm guessing there is an RFID chip or equivalent in the remote as a backup. When it's in close proximity to the pushbutton, which doubles as an RFID reader, it validates the RFID chip and allows the car to start.
But this is only a guess. I scanned mine for an NFC chip but it did not find one.
But this is only a guess. I scanned mine for an NFC chip but it did not find one.
