Mountaineer 2WD V8-4.6L SOHC VIN W (2003)
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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.