Turn on the FCAR scanner and select menu “Diagnosis”, “Special Function” and “Service Reset”;

Select “ Diagnostic mode ”&“ Service reset ”;

Select “ American Cars ”；

Select “ GM”；

Select“ Automatic reset ”；

Select “ Type 1 ”;

Select “ Oil life set ”；

Select “Enter” after set the oil life value (0-100 ). Go back to the main menu , ignition on and check the service reset light off or not . If yes , the operation has been succeed.