How to Reset the Oil Life on a Cadillac CTS and CTS-V

1. Use the DIC buttons to bring up the REMAINING OIL LIFE display on the Driver Information Center.
2. Press and hold SEL for several seconds while the Oil Life display is active.
3. Check that the CHANGE ENGINE OIL SOON message clears and the oil life shows 100%.

• Reset only right after an oil change; the system will not reset itself and cannot be reset accurately until the next change.
• Alternative: with REMAINING OIL LIFE displayed, fully press and release the accelerator pedal three times within five seconds.
• If the message returns when the vehicle is started, the reset failed; repeat the procedure.

Source: 2019 Cadillac CTS and CTS-V owner's manual, PDF pages 272, 273, 141. 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.