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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
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
1 more answer
Hold down "SET" button and it will re-set to 3000 miles automatically