You will need a flat blade screwdriver.
1. Disconnect the wire from the terminal «minus» battery.
2. Remove the protective cap from the switch.
3. Press the latches with a screwdriver and remove the switch from the hole in the body.
4. Disconnect the wiring harness block...
5.... and remove the switch.
6. Similarly remove the switches located in apertures of other doors.
7. Install the switch in the reverse order of removal.