The contact owns a 2014 GMC Terrain. The contact stated that the oil reservoir was constantly needing to be refilled. The contact stated that he had to have the oil changed and added every 4 weeks. The contact stated that the check engine warning light had been illuminated. The contact had taken the vehicle to an independent mechanic who diagnosed that the catalytic converter had failed due to engine oil deposits and needed to be replaced. The vehicle was repaired. The contact stated that the failure reoccurred, he saw the check engine warning light was illuminated and was again having to add oil due to excessive oil consumption. The vehicle was taken back to the same independent mechanic who advised that the catalytic converter was going to fail again due to oil deposits. The vehicle was not repaired. The manufacturer was informed of the failure and referred to the NHTSA Hotline. The failure mileage was approximately 160,000.

- Latrobe, PA, USA

The contact owns a 2014 GMC Terrain. The contact stated that while his wife was driving at an undisclosed speed, the vehicle stalled. The contact stated that his wife was not aware of any warning lights being illuminated. The contact stated that his wife was unable to restart the vehicle, and had the vehicle towed to the residence. The contact called an independent mechanic to the residence who diagnosed the vehicle and determined that there was oil leaking into the engine block and cylinders. The mechanic determined that the positive crankcase valve (PCV) had failed and needed to be replaced and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 105,000.

- Front Royal, VA, USA

The contact owns a 2014 GMC Terrain. The contact stated while driving at approximately 65 MPH, the accelerator pedal was depressed to overtake another vehicle in the right lane and the RPM raised up 8,000 RPM. The contact stated that there was an abnormal banging sound coming from the engine compartment. The contact stated that smoke started coming from the front of the vehicle. The contact stated that the check engine and check oil warning lights were illuminated. The vehicle lost motive power and the contact pulled off the roadway and turned off the vehicle. The contact had the vehicle towed to an independent mechanic. The mechanic diagnosed the vehicle and determined that a rod bearing had fractured and pierced the cylinder into the engine block. The contact was advised by the mechanic that the engine needed to be replaced. The vehicle was not repaired. The contact stated that prior to the engine failure, the contact was continuously adding oil to the engine. The contact was adding one quart of oil every week for more than 10 months. The manufacturer was informed of the failure. The failure mileage was approximately 150,000.

- Peabody, MA, USA

First incident-August 28,2014 accelerating onto highway from store lot, sharp right accelerated and engine died. No power, battery ok. Message "reduced engine power" and "stability track". towed to garage which replace engine module. Forty miles from garage, accelerating on right turn same problem. Engine died (we nearly got hit) and message same, "reduced..." and "stability..". towed to garage and waiting for results.

- Milton, FL, USA