How to Reset the Oil Life on a Cadillac XTS

Steps from the 2019 Cadillac XTS owner's manual.

Use the DIC buttons to display REMAINING OIL LIFE on the Driver Information Center.
Press and hold SEL to clear the CHANGE ENGINE OIL SOON message.
Check that the oil life resets to 100%.

Reset only right after an oil change; it cannot be reset accurately until the next oil change.
Alternate method: with REMAINING OIL LIFE displayed, fully press and release the accelerator pedal three times within five seconds.
If CHANGE ENGINE OIL SOON returns when the vehicle is started, the reset failed; repeat the procedure.

Source: 2019 Cadillac XTS owner's manual, PDF page 248. 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.

Confirm with your own manual, dipstick or door-jamb label.
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