How to Reset the Oil Life on a Buick Enclave

1. Put the vehicle in P (Park).
2. On the infotainment home screen, select Vehicle Status > Maintenance > Oil Life > Reset.
3. Follow the menu and select Reset on the display screen.
4. Select Reset again to confirm.
5. Check that the percentage changes to 100%.

• Reset the system to 100% after every oil change.
• If CHANGE ENGINE OIL SOON shows at startup or OIL LIFE REMAINING is near 0%, the reset failed; repeat the procedure.
• If reset by accident, change the oil at 5 000 km (3,000 mi) since the last oil change.

Source: 2026 Buick Enclave owner's manual, PDF page 255. 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.