One problem related to air conditioner has been reported for the 2012 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 GMC Sierra 1500 based on all problems reported for the 2012 Sierra 1500.
The contact owns a 2012 GMC Sierra 1500. While driving at various speeds, an abnormal sewage odor emitted from the air conditioning unit. The failure recurred numerous times. The vehicle was taken to a dealer where it was diagnosed that the cabin filter failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 51,000. The VIN was not available.
| Carrier/rack problems | |
| Equipment problems | |
| Air Conditioner problems |