Hi I bought a used 2000 Lincoln navigator and I need to know how to put in a new security code for entry and I don't even know the factory code to begin or where to find it, HELP?

 

Welcome and congrats on your new ride, the 2000 Lincoln navigator.
Drop into the Expedition & Navigator forum: https://www.ford-trucks.com/forums/forum27/
Also visit your local Illinois Chapter: https://www.ford-trucks.com/forums/forum122/ soon for local events and happenings as well as meeting new friends.