look in ur owners manual

without a dealer? My honda fit has an oil life gague ,that tells you when you need to change your oil ,not realy it goes by milage on your car because Ive had my oil changed twice already and the gague says my oil life is at 15 ,you start a 100 ,when you get to 15 a litte wrench lite comes on that means you need to change your oil . does anyone know how to reset it without going to the dealership to have the oil changed to reset the gauge??THANKS