Oil change required on 2009 Mercury Mariner

I got a message " Oil change required". After changing oil, this message still persists despite resetting. What can be done

Asked by for the 2009 Mercury Mariner
2 answers 1 comment
On the previous year model, set control to system check function, press and release the SET control to read XXX% hold set new, press and hold SET NEW, press and hold for 2 seconds or until display says 100%.
Thank you very much. It seems to be working
Hold down "SET" button and it will re-set to 3000 miles automatically