turn your ignition to acc, then cycle through by pushing the info button, and when you come to miles and months, press and hold from 3 to 5 seconds, and all done. but next time use the search button or your owners manual http://www.lancertuners.com/modules.php ... tion+reset
i know for sure that it is in your car manual guide, because thats what i used to do it. But if for some reason you lost it i would be willing to type it up step by step for ya.