Excess Oil consumption

- Chicago, IL, USA

My vehicle started shaking & stalling really badly out of nowhere on April 18, 2025. Had to have it towed to GMC dealership. They said the engine was showing low compression. Got timely oil changes and everything on this engine. The check engine light nor any other warning light ever came on when this happened. After some research, the engine in my car, the 2.4 L engine on the 2014 - 2017 models of the GMC Terrain has known defects which although GMC has known about, they have done nothing to address the issue. There was no prior warning that the engine was failing. It was very sudden and I was in traffic when this happened putting both my safety and the safety of other drivers and pedestrians in danger.

- Douglasville, GA, USA

I am reporting excessive oil consumption in my 2016 GMC Terrain with the 2.4L Ecotec engine. The vehicle burns through an abnormal amount of oil between routine oil changes, often requiring additional oil changes without any visible leaks or dashboard warnings until the oil level is dangerously low. This issue has been diagnosed by a certified GMC dealership, but the repair was not covered under warranty. I-??ve learned this is a known and widespread defect related to faulty piston rings and PCV system issues in this engine model, which has led to engine damage or failure in many cases. GMC has not issued a recall for my VIN, and my request for goodwill assistance was denied despite the safety risk of low oil pressure and potential engine failure while driving. I believe this issue poses a safety concern and warrants formal investigation and potential recall expansion.

- Waldorf, MD, USA

My 2016 GMC Terrain exhibited the excessive oil consumption outlined in both of the following Special Coverage Adjustment bulletins. In addition to the excessive oil consumption, the oil light and oil pressure warnings never gave any indication that there was an issue or that the oil was low. This ended in the engine shaking the whole car, jerking it forward when stopped, and causing the engine to seize and need replacing. GMC customer service has refused to acknowledge this issue, stating that until the government tells them to issue a recall, they can't do anything to fix my vehicle. GM acknowledged the issue for model years 2010 - 2013 (+2014 later) and alleged that they made production changes in 2013 that fixed the issue. From the experience with my vehicle and the posts on multiple consumer websites by other GM owners, it is clear that they did NOT fix the issue and that there are hundreds of owners of GMC Terrain and Chevy Equinox vehicles with the 2.4L engines that have had this problem and have lost all the value in their vehicles as a result (or had to pay up to $10,000 for a new engine.) [XXX] [XXX] Class action lawsuit about previous model years: [XXX] v. General Motors INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Billerica, MA, USA

consumption of oil! I got my oil changed January 1, 2025. It is now February 1. I have driven less than 500 miles. I had no oil. I have no Leaks or anything wrong. The car just consumes. I have had to have 6 oil changes in the past 3 months. Shop after shop. Has said it just consumes oil and this vehicle is trash. I noticed there was also a lawsuit against it. If you do not put a recall out on my vehicle ASAP, I am going to file a personal lawsuit and sue the hell out of you! For your scam! Somebody better give me a call immediately. Or set me up at my local GMC dealer to fix this issue. I better be expecting a notice in my mailbox or an appointment for a free fix and this better be a recall immediately! Or you-??re asking for another lawsuit! I was told my car could blow up. With my kids and it could kill us! You better fix this immediately!!!!!!!

- Branson, MO, USA

I was driving my vehicle to the gym when I noticed it was driving weird, it would not accelerate like normal, was having a hard time getting going and was making a weird noise. I had just put some oil in the car because we had known for a little while that it had a problem with burning oil because of the make and model (as told by other mechanics previously), when I got to the gym I heard a pop noise and the car stalled on me, I eventually got it started up again after 2 hours of being stranded at the gym. The next day I had to drive 40 minutes away for nursing school Clincial where on the way home it was back to driving weird and making a loud horrible noise from the engine. I was only 5 minutes from home when it was really bad and once there I noticed the burning smell from the engine. When I checked the oil level after an hour and half of cooling down I could not get any oil reading on the dipstick, after adding almost 4 quarts there was still no reading on the dipstick. We finally drove the car to my mechanic (8 minutes away) and it was already back to making the loud noise, having trouble accelerating, and producing the foul odor. I was told the PCV was restricted and caused the engine to over pressurize and that lead to the Main Rear bursting and all the oil in my car being thrown over the entire underside and probably the roads. They also checked the oil filter in the car to see if the engine itself was salvageable, where they found metal flakes in the oil filter and deemed the engine failed and are saying the engine needs replaced in order to fix the car I-??ve had for 15 months-?? I-??m still paying this car off and I have only driven it for less than 17,000 miles. It is a 2016 GMC terrain that only has 91k miles, I truly hope GM makes this right seeing as so many have come with the same exact problem due to poor design and vehicle quality. My car has had regular oil changes and I check the oil every week because of the prior burning problem.

- Fishers, IN, USA

The contact owns a 2016 GMC Terrain. The contact stated while driving at an undisclosed speed, the vehicle shook abnormally and lost motive power. The contact restarted the vehicle, and the low engine oil warning light illuminated. The vehicle was driven to the shoulder of the roadway. The vehicle was towed to the residence. The vehicle was scheduled for a diagnostic test at the dealer. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. In addition, the contact stated that the vehicle had recently received an oil change at Walmart. The manufacturer was not made aware of the failure. The failure mileage was unknown.

- Eastvale, CA, USA

When starting the vehicle, I received a -??reduced power-?? warning and then the check engine light came on. I was afraid to drive it to the service center, so It was towed. The repair center informed me that the timing chain failed and that engine will no longer start at all. I cannot afford to have the engine repaired no matter the cost because I-??m still responsible for almost $6k of the loan for this vehicle, in addition to full coverage insurance required by the lender. Also, probably taxes as well because I now have a very expensive lawn ornament. Oh, and towing fees to deliver the ornament to the lawn. And then there-??s the cost of finding transportation so I can actually work to throw money at all of those costs. Being buried financially because I put faith in this product is an injury and an expensive lesson.

- Ezel, KY, USA

The contact owns a 2016 GMC Terrain. The contact stated while driving at an undisclosed speed, there was a knocking noise heard coming from the front of the vehicle. There was no warning light illuminated. The contact had the vehicle was towed to the residence and then to the local mechanic where a diagnostic test was performed. The local mechanic stated that the rear main seal needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was not made aware of the failure. The approximate failure mileage was 84,394.

- Suring, WI, USA

The contact owns a 2016 GMC Terrain. The contact stated while driving approximately 45 MPH, the vehicle lost motive power and stalled. The vehicle was towed to the local dealer to be diagnosed. The contact was informed that the timing chain had failed, and the engine needed to be replaced. The vehicle was not yet repaired. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 104,000. The contact was instructed to take it and have it diagnosed by the dealership he bought it from so I spent more money to have the garage take it on their roll back and drop it off at the dealership. The email stated I needed an engine with a $9000 estimate.

- Wapwallopen, PA, USA

Driving down the road yesterday and outta nowhere I lost power and got a low oil pressure warning then the car just shut off merging onto a busy highway. Blown rear main seal and locked up the engine with no warning. Only 65k miles on the car. Dealership wants to charge me 11k to replace the engine. This is a very common occurrence with this vehicle I-??m reading now. This could-??ve caused a major accident

- Emmitsburg , MD, USA

This is a 2016 GMC all wheel Terrain. Over the past several years when accelerating the car would shake violently, because we could not reenact dealership could not diagnose the problem, however as the issue has gotten worse we have been able to recreate and diagnose AND we are looking at a $2,000 repair based on a known ISSUE which DID NOT lead to a recall. The ACTUAL ENGINE IN ITS ENTIRETY SHAKES VIOLENTLY when accelerating!! How in the hell is this possible that these cars are allowed on the street without a recall. You should be ashamed!

- Negaunee, MI, USA

The engine - My engine blew because oil evaporated out of the #1 cyclinder, which drained the oil. No warning lights went on and the vehicle stalled in the middle of rush hour traffic. The dealership told me it was because of a factory defect, but no recall on that part of the vehicle. This could have been much worse if the vehicles behind me were going faster than they were and not able to stop before rear ending me. Because this was a factory defect it should have been recalled and I should have been notified of this problem when I bought the vehicle.

- Forest Lake, MN, USA

Thermostat/coolant sensor malfunctioning causing engine fan to constantly run as if the engine is over heating. Some engine exhaust door/flap is stuck open or closed causing check engine light to come on. And or the actuators doors are broken causing windows to fog and obstruct view. Not sure what would cause this issue but I have had to have work done on my vehicle twice for this issue within 3 years.

- Ferguson, MO, USA

While just starting on my way home on a cold 9 degree day, I have an 2016 GMC Terrain that I had since 2018 and bought from a dealer. After driving for about 12 miles on the interstate the Terrain engine light came on and there was a vibration coming from the front of my GMC. There was an exit ramp about 1/4 mile so i pulled off the interstate and my vehicle showed loss of power and steering and shut down, barely made it on the exit ramp. Very dangerous not having steering with little notice. I noticed alot of oil dripping from the undercarriage so I called a local automobile shop to get my vehicle towed. They diagnosed that I needed a new engine and comented that the 2.4 engine had many issues. I recently had it towed to my house and currently going to have a local chevy dealer give me a second opinion and cost for repairs since I still have a loan on the vehicle.I believe that this is a very unsafe vehicle and needed to be reported so nobody gets hurt. Thank You

- Mauston, WI, USA

Was driving home from work and the engine light came on. Shortly after the stabilitrak warning light came on followed by the reduced engine power warning. I had a GM dealer work on why the engine light came on while the car was still under warranty and i thought that would have fixed it. I have been reading on articles how the engines in these models are defective and consumes a lot of oil. I always have to add oil in between changes. I had a mechanic look at my car and run a diagnostic and basically the pistons need replacing...due to the defective engine. I feel the engine repairs that will be needed should be covered.

- Philadelphia, PA, USA

The contact owns a 2016 GMC Terrain. The contact stated that while operating the vehicle, an abnormal oil odor was present inside the cabin of the vehicle, causing the driver to experience a headache. Additionally, while driving the vehicle was shaking and vibrating. The vehicle was later towed to the local service center diagnosed that the engine was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were notified of the failure. The failure mileage was 67,496

- Toledo, OH, USA

Timing chain went out, at 80,000 miles, causing vehicle to stall.

- Tecumseh , MI, USA

The contact owns a 2016 GMC Terrain. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. The oil warning light was illuminated, and an unknown message was displayed. The vehicle was towed to an independent mechanic, who diagnosed that the lower engine seal and bearing were faulty. The mechanic determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 92,600. The VIN was unavailable.

- New Creek, WV, USA

At approximately 75000 miles the car began leaking oil. Took it in to gym certified dealer. Was told the pcv froze causing a pressure build up, and blew out the rear main seal. They stated this engine has this as a common occurrence. Searching online this appears to be true. Many years prior to mine were recalled. Apparently the recall needs extended.

- Trenton, MO, USA