Please check fitment notes & description for accurate information. 2009-2011 Buick Enclave 3.6L 2009-2011 Chevrolet Traverse 3.6L 2009-2011 GMC Acadia 3.6L 2009-2010 Saturn Outlook 3.6L Oxygen Sensor's Location: How do I know the O2 sensor is good or not? Check engine light on A reduction in fuel economy. Your catalytic converter fails unexpectedly Exhaust emissions reach undesirable levels. How to install the oxygen sensor? .
