Enclave 3.6L V6 2009 2010 2011. Acadia 3.6L V6 2009 2010 2011. Traverse 3.6L V6 2009 2010 2011. 4 x Oxygen Sensor. If the sensor is good, further diagnosis is required. There're many different codes for specific functional failures, which are NOT necessarily relevant to the sensor.
