PC/rear main seal blew

- Bonfield, IL, USA

The rear main seal blew out due to crackcase pressure build up.

- Elwood, IL, USA

The rear main seal broke. Causing oil to leave the reservoir and empty the engine. This was due to a frozen pvc from cold temperatures. My vehicles engine light came on and I pulled over immediately noticing there was no oil. but there was never an indication of low oil. My vehicle is ervex with gmc every 5k miles for oil. Only 74,000 miles on a 2017 terrain. This is a manufacturers faulty equipment.

- Channahon, IL, USA

The contact owns a 2017 GMC Terrain. The contact stated while driving 30 MPH, the "Low Oil Pressure - Shut Engine Off" message was displayed. The contact was able to pull into his driveway and parked the vehicle. The vehicle was taken to an independent mechanic who diagnosed that the rear main seal had failed, and the failure was related to GM Technical Service Bulletin: 14882. The dealer and the manufacturer were notified of the failure and informed the contact that they could not assist because the VIN was not included in the Technical Service Bulletin. The manufacturer referred the contact to the NHTSA for assistance. The vehicle was not repaired. The failure mileage was approximately 66,000.

- North Reading, MA, USA

The contact owns a 2017 GMC Terrain. The contact stated that after his wife had parked the vehicle, the oil light appeared on the instrument panel. Upon exiting the vehicle, she discovered that oil had leaked onto the ground from underneath the vehicle. The contact was called to the scene and placed oil into the vehicle; however, the oil leaked out after restarting the vehicle. The contact then called a friend who was a mechanic and he discovered that the PCV valve had frozen which caused the rear main seal to fracture. The contact also discovered that oil spilled all over the bottom of the engine. The dealer was notified of the failure and informed him that there were no recalls. The manufacturer was also notified of the failure and referred him to NHTSA. The vehicle had yet to be repaired. The failure mileage was approximately 80,000.

- Elma, NY, USA

Engine started consuming oil at around 90,000 miles. First noticed after a Oil change with the dealer we bought it from. Questioned them about it once we checked the oil, and noticed it being low after experiencing a engine noise. Dealer had us bring it back, refilled it, and test drove it for 20 miles. They sent it back with us, stating it may not have been topped off correctly. Noticed the issue several more times, and told the dealer, they then had us to a oil consumption test. After test was concluded recommended that the piston rings be replaced at a cost of $2202.02. GM first refused coverage even though this is a known issue with Terrains with the 2.4 cyl. engine. Dealer resubmitted to GM rep., Rep. admitted this is a known issue, and that GM is waiting to see if they experience enough complaints to meet the 10% of production number before it is covered 100%. Contacted GM customer complaint line with no luck in getting additional coverage, even though GM extended coverage for earlier models with this issue.

- St Paris, OH, USA

The contact owns a 2017 GMC Terrain. The contact stated while driving approximately 25 mph, the vehicle lost electrical and motive power. The contact was able to restart the vehicle. The contact stated that there was no warning light illuminated. The vehicle was diagnosed but not repaired. The manufacturer was informed of the failure. The contact was still awaiting a response. The failure mileage was approximately 48,850.

- Compton, CA, USA

My check engine light came on along with a a message that states 'reduced engine power' and a message reading 'service stabilitrek when I was driving on the highway at 70 mph. This created suddenly jerking and slow acceleration so that I had to pull off the road. I found a forum at [xxx] that reveals that this has been an issue with GMC modes at least as long as 2011. The duration for which this has been a problem with GMC models, and the fact that stabilitrek is an integral safety feature of the vehicle in avoiding accidents seems to merit a recall. Parts of this document have been redacted to protect personally identifiable information pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Rohnert Park, CA, USA