hey, i've had this happen to me before. it just means u need to change your oil soon, or if u have, just do this. put the key in the ignition (dont turn it yet), press the odometer /trip reset button down and hold it (right by odometer), then turn the key to on(but dont start it) then give it a min and all the lights will turn on and then one by one go off and your odometer will show 0 then your mileage. after that u will be good to go and u only have to do that after you change your oil.