With the mileage display at Total miles. Press the end of the right hand stalk and scroll through the trip computer.. after the 6th press you will reach the display that says either "To Service" or "change Oil Soon".
Then press the small black button on the Bottom Right handside of the Rev counter Bezel.. Keep it pushed in until the display starts to flash, it will then change to flashing 18,000/12,000. keep it pushed in until the 18,000/12,000 stops flashing then release the black button..
That is it reset..