Mountaineer AWD V6-4.0L VIN K Flex Fuel (2003)
4. Release the RESET control momentarily, then press RESET and SETUP controls at the same time to activate a service mode which will display
"OIL LIFE XX% RESET TO ALTER".
5. Press RESET until you find your personalized OIL LIFE XX%.
6. With your personalized OIL LIFE XX% displayed, press SETUP to continue the system check.