This bulletin applies to 2023-2026 Chevy Equinox vehicles equipped with a 1.5L engine. Customers may notice a surge, misfire, chuggle, hesitation at tip-in acceleration. DTCs may include P0300, P2097, P2251 and P223C. The likely cause involves a potential skewed position 1 oxygen sensor.

Replace the position 1 oxygen sensor and perform any applicable learn, and re-test. Inspect the catalytic converter while the sensor is out of the bore for any potential degradation to the catalyst bed.