1- lock seatbelt in
2- turn ignition to "ON"
3- wait for seatbelt warning light to remove from dash
4- remove and insert seat belt 3 times within 10 seconds
5- leave seatbelt in on the 3rd time
6- turn ignition to "OFF"
7- listen for chime to confirm operation worked
EDIT: Still not working, sorry, I'll update this if a solution is found....