How to Reset the Oil Life on a Buick Lucerne

1. Bring up OIL LIFE REMAINING on the Driver Information Center (DIC).
2. Press and hold the SET/RESET button on the DIC for more than five seconds.
3. Check that the oil life reading changes to 100%.

• Reset the system every time the oil is changed; it will not reset itself.
• If CHANGE ENGINE OIL SOON returns at startup, the reset did not work, so repeat the procedure.

Source: 2011 Buick Lucerne owner's manual, PDF page 308. 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.