How to Reset the Oil Life on a Chevrolet HHR

1. Turn the ignition to ON/RUN with the engine off.
2. Press the information and reset buttons on the Driver Information Center (DIC) together to enter the personalization menu.
3. Press the information button repeatedly until the DIC display shows OIL-LIFE RESET.
4. Press and hold the reset button until the DIC display shows ACKNOWLEDGED.
5. Turn the key to LOCK/OFF.

• Reset the system every time the oil is changed; the ACKNOWLEDGED message confirms the reset.
• If the system is reset accidentally, change the oil at 3,000 miles (5 000 km) since the last oil change.

Source: 2011 Chevrolet HHR owner's manual, PDF page 295. 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.