How to Reset the Tire Pressure Light (TPMS) on a Cadillac OPTIQ

1. Rotate the tires or replace a TPMS sensor, then set all tires to the pressure on the Tire and Loading Information label.
2. Keep the vehicle stationary for about 20 minutes after a tire is installed so the system can recalculate.
3. Drive at a minimum speed of 20 km/h (12 mph) so the Auto Learn relearn process can run.
4. Allow up to 10 minutes of driving for the relearn to finish.
5. Watch the DIC, which shows a dash (-) or a pressure value while relearning.

• Each TPMS sensor has a unique identification code that must be matched to its new tire/wheel position.
• A warning message displays in the DIC if a problem occurs during the relearn process.
• The pages give no button or menu reset; the sensor matching is automatic.

Source: 2025 Cadillac OPTIQ owner's manual, PDF pages 299, 300. 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.