To reset the 2015 Ford Focus oil life reset, please follow these instructions:
1. Turn the ignition to run (one position before starting engine). 2. Press the brake and gas pedals at the same time; after 3 seconds the “Service: Oil reset in prog.” message will appear and after 25 seconds the “Service: Oil reset complete” message will appear. 3. Release the brake and gas pedals. 4. Turn the ignition off and then start the engine to verify the indicator has been reset.