Have Ford Questions? Ask a Mechanic for Answers ASAP
Hello, you want to make sure you do have the def tank full. Once it's full it should reset but not always. There was a PCM update to correct this concern. The other option is a factory scan tool can do a system fill activation. These are the only ways I know of to correct this concern.
hi James is correct, the only way to fix this is to take it into your dealer and have a "Refill activation procedure" done, what happen is owners keep filling the system but not putting enough fluid in to activate the refill sequence, so even though the system is full the computer doesn't recognize it and keeps counting down. I believe the system has to see at least 4 or more litres added to the system.
Do you need more help?
Okay, Thank you for using just Answer,