Ducati MULTISTRADA 1200S ABS 2015 Workshop Manual page 425

When you press button (4) to confirm the fourth and last digit, the instrument panel highlights the message
MEMORY.
To save the new setting, hold button (4) for two seconds while the message MEMORY is highlighted in orange.
If storage is successful, MEMORIZED will be highlighted in green for 1 second, and then EXIT will be highlighted in
green.
Once the first PIN CODE is stored, this menu page is no longer available and is replaced by the page for changing
the PIN CODE. The page for entering the very first PIN CODE is active and available again only in case the PIN
CODE function is reset (but this is only possible at a DUCATI Authorised Service Centre).