you are correct. most cars are set up to have the stupid little light turn on at a predetermined milage, and as such most cars have a secret way of turning the little annoying bastard off. in the back of some chilten labor hour books, the ones you find at shops telling how much you can screw a customer for, has the procedure for all cars in the back. you might search the internet and be able to find this info. its usually disconneting a wire and re-pluggin it in, some are buttons, they are all different. if your dad works at a shop, they might have this book, if so...problem solved. hope this helps.