How to Reset the Oil Life on a Ford C-Max Hybrid / C-Max Energi

1. Switch the ignition on without starting the engine.
2. Fully press the accelerator and brake pedals at the same time.
3. Keep both pedals fully pressed.
4. After three seconds, wait for the message that the reset is in progress.
5. After 25 seconds, wait for the message that the reset is complete.
6. Release the accelerator and brake pedals, then switch the ignition off.

• Only reset the system after changing the engine oil and oil filter.
• If the battery is disconnected or discharged, the monitor resets to 100% oil life, so change the oil within one year or 10,000 mi (16,000 km) of the last change.

Source: 2018 Ford C-Max Hybrid / C-Max Energi owner's manual, PDF pages 219, 419. Steps are summarized in our own words (AI-assisted, checked against the cited pages 2026-10-18). Other model years can differ; your manual has the final word.