Hi baltobernie. You go to the SYNC screen in your vehicle. Then...Off the top of my head, go to "Settings", then "About SYNC". It will list your SYNC version, NAV maps version etc. Don't forget to scroll down if necessary.How can I determine what navigation map set is the latest version?
How can I determine what version is installed in my car?
The latest NAV maps version available is NA 2 21.
You can check for available SYNC and NAV map updates for your vehicle here: https://www.lincoln.com/support/sync-maps-updates/
Let us know how you make out and good luck.