How to Reset the Oil Life on a Ford Focus

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

• Only reset the system after changing the engine oil and oil filter.

Source: 2018 Ford Focus owner's manual, PDF page 219. 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.