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 federal safety agency Hotline. The failure mileage was approximately 160,000.
2014 GMC Terrain engine complaints
Page 2 of 5: complaints 11 to 40 of 130, newest first, as owners wrote them.
Oil consumption issue caused timing chain to go causing catastrophic damage to the engine resulting in over 3000$ in repairs the oil light does not come on nor does it have a low oil pressure warning
The contact owns a 2014 GMC Terrain. The contact stated while at a complete stop at a red light, the doors were making locking and unlocking sounds. The contact stated upon depressing the accelerator pedal to resume driving, the vehicle failed to exceed 25 MPH. The messages "Service Stabili-trak" and "Service Power Steering" were displayed, and the check engine warning light was illuminated. The contact was able to drive to the residence. The vehicle was towed to the dealer, where it was being diagnosed. The vehicle was not yet diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 159,500.
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.
On May 10, 2024 while driving my 2014 GMC Terrain driving at about 65mph my car cut off while driving to the point that the car started slowing down which had med confused as to what was going on but thankfully I was able to safely move over to the side of the of the highway in order to be in safer position to start the car back up. There was no warrant signs that the car had cut off but I had the air conditioning on do it stop blowing. At this point I knew the car was not safe to drive but I had to get off the highway. So I was about 5 miles from my exit which I was able to get to the exit without the car cutting off again on the highway but the car cut off once again on the exit as my speed was decelerating. I took my car to Meineke Car Care a few days later and was told that my car needed to have the solenoid replaced and the timing chain kit which was what the diagnostic was showing. Once they were able to fully inspect the car I was told that the timing chain kit was broken and I had medal in my oil which was suggested that I replace my engine. This put me at risk of being in an accident that could have injured myself or someone. There were no warning indications. My check engine light was not on. I had to pay to have the engine replaced which before I had it replaced I took my car to another shop just to get a second opinion in which I had the engine replaced.
The contact owns a 2014 GMC Terrain. The contact stated that after refueling the vehicle, the check engine warning light illuminated. The contact stated while driving at an undisclosed speed, the vehicle started shaking and vibrating and then stalled. The vehicle was examined by a local mechanic, who determined that the engine was damaged due to a lack of engine oil. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer and local dealer were not notified of the failure. The failure mileage was 147,623.
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.
The contact's daughter owns a 2014 GMC Terrain. The contact stated that while his daughter was driving 70 MPH, the vehicle stalled. The vehicle was steered to the side of the road and failed to restart. The vehicle was towed to an independent mechanic where it was diagnosed that the timing chain had fractured, and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 120,000.
Was driving from home to my job in Novi, MI. While driving at 70 mph on [XXX] [XXX] miles west of Grand Rapids the motor suddenly stopped. There was never any warnings on dashboard instruments, no audio signs, and no physical signs this was about to happen. Had 16% remaining oil life before next oil change per computer. Dealership is telling me there is no oil in motor and it has suffered a catastrophic motor failure after timing jumped. This almost caused a major accident at highway speeds. Motor only has just over 77,000 miles on it. Of course it is out of warranty. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The oil leaks out of pan!! Oil consumption
See attached document for complaint
While driving oil blew out of engine of 2.4 eco tech. Single digit temperatures. Very little warning caused engine to lock up cost over 5,000 to replace engine.
Vehicle started leaking oil with no indicator. Didn't realize it for at least a few days. When I smelled a burned oil smell took it to the repair shop. Was told my oil gasket blew and the engine is about shot. I also only a month earlier replaced the battery. These vehicles apparently have known battery, oil and engine issues that were known since 2010. The following class action lawsuit in Missouri is pending: [XXX] , on behalf of herself and all others similarly situated, Plaintiff, v. GENERAL MOTORS LLC, Defendant. _____________________________________ Our vehicle is not even at 100,000 miles! This will cost thousands of dollars to fix or we will need to purchase a new vehicle which we didn't plan on for a few years at least! This has been devastating. Please help. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
2 and a 1/2 months after I bought my 2014 GMC Terrain used. It had no oil in it. I had to put pretty much a whole new engine in that cost me $5000
Vehicle shut down and turned off while being operated. No warning lights were on at any point before the incident. I was driving down the road and without warning, it just turned off. My safety as well as the safety of the drivers on the road around me were compromised by this sudden failure as the vehicle was in motion when the incident occurred and I was unable to properly operate the vehicle. When I tried to re-start the vehicle the engine would not turn over and several warning lights were suddenly on. Vehicle was towed to dealership and the service department said the timing chain jumped and the engine needs to be replaced. Multiple complaints have been made against GM for the faulty 2.4L Ecoboost Engine that causes excessive oil consumption with no appropriate monitoring or warning system in place leading to timing chain issues/failure that destroys the engine without warning, often while the vehicle is being operated. No recall has been made and no warning is given to customers who purchase vehicles with these engines. I have owned this vehicle less than a year and the repair invoice I was given quotes over $10,000.
Pcv system plugged up pressure in engine when remove oil cap have cleaned it my self
The contact owns a 2014 GMC Terrain. The contact stated that while driving at an undisclosed speed, the vehicle stalled and inadvertently lost power. The contact was able to restart the vehicle and drive the vehicle to an independent mechanic, where the vehicle was diagnosed with Timer Change failure that needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.
Vehicle's 3.6L engine is consuming excessive amounts of oil. Over 2 QT oil every 2,000 miles. Issue confirmed by GMC certified dealer and independent mechanic. Vehicle showed signs of it at 138,000 miles with independent mechanic. Independent mechanic said to contact GMC customer service. GMC customer service required certified dealer to validate issue. Certified dealership validated issue. GMC not taking responsibility for engine defect.
There's an oil consumption issue that requires you to constantly refill the engine with oil between oil changes. It's so bad that it causes buildup and eventually interferes with the timing. Causing significant, unacceptable repairs! Now I'm forking out money for a constant issue that shouldn't exist! My car cut off in traffic! That's a major safety issue! I will provide costs of repair when I get the final estimate! My timing chain, tensioner and pistons may need to be replaced because of this issue!
Car engine light coming on because of codes P0010, constant oil changes, acceleration slows. Turns off a low idle. No low oil warning lights at all.
The contact owns a 2014 GMC Terrain. The contact stated that while driving at an undisclosed speed, the engine seized, and the vehicle lost motive power. No warning light was illuminated. The contact stated that the vehicle previously had an oil change; however, the engine was consuming an excessive amount of engine oil. The vehicle was towed to the residence and had not been diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 109,000.
The contact owns a 2014 GMC Terrain. The contact stated that while her husband was driving at an undisclosed speed, the vehicle lost motive power. The vehicle was towed to the dealer, where it was diagnosed 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 95,000.
Bought car in 2021 and a few months later car started turning off while driving. Check engine light came on..replaced sensors and all was good. Fast forward to a week ago...scheduled an oil change like I always do...check engine light came on and engine started rattling. Stopped driving immediately. Checked oil and there was none. Added 3 quarts. Took to garage to have them take a look at it. He did the oil change but doesn't handle engine repairs and believes it is my timing belt. The vehicle only has about 65,000 miles on it and is a 2014. Common occurance apparently with this vehicle that needs to be addressed.
Other years of this vehicle have recalls for the catalytic converter. My check engine came on and it said it could be that or the O2 sensors. O2 sensors have been replaced and the check engine light is back on.
Timing chain malfunction that burned through oil causing the engine to seize. No engine light indicators were displayed in regards to this issue. The issue escalated quickly with signs showing only 2 days before the engine finally seized & leaking oil into engine bay. It is also noted that the engine oil has had many reported leaks into fuel tanks & other areas of the car.
My check engine light would come on, the oil dipstick would be dry and multiple misfire codes happened. This went on multiple times because of oil consumption. I would pull over and call AAA to tow my car. Driving while the oil is low is damaging parts in my car, causing loss of power and can cause a fire. I have to check my oil dipstick every week to make sure it has enough oil before I drive. I'm adding oil multiple times before an oil change is needed. The oil consumption was confirmed by a GMC dealer and documented. GMC dealer inspected my car. The oil consumption started 08/10/21 and was documented again on 11/19/21 with GMC Tech stating what's wrong. Oil consumption is going on with multiple GMC vehicles and GMC has not done a recall and they absolutely should have a recall.
Rear main seal failed when car sat outside for several hours at work at cold temperatures. Possible frozen or clogged PVC valve. Blew oil all over Highway. Before found and causing hazardous road conditions.
On December 26, 2022, my son and I were on our way to Indianapolis, Indiana from Anderson, Indiana. When we were about to the end of going through Ingalls, I noticed that my check engine light went off. I pulled over within 3 to 5 miles within notification of my engine light going off at a gas station. I turned off my Terrain, so my son could look under the hood to see if anything was amiss and I turned my Terrain back on hoping that the check engine light would go off. It didn't and the engine sounded normal. We proceeded to go on to Indianapolis driving on. Everything was fine until right before we reached 30th and German Church Rd. I started hearing what I thought was a clicking/ticking sound, so I turned off my radio to confirm it. As I turned down the radio to confirm the sound, my dashboard let me know that my engine was losing power and a stabilitrack warning. I immediately pulled over to check to see if my serpentine belt broke. It hadn't. My oil read at 29% and no other lights were on besides the check engine light. NOTHING letting me know that I was losing oil. A friend of mine came to listen to it and thought maybe my alternator was going out. I attempted to drive it to a garage that was maybe at most 2 miles away. It started right back up but lost power again less than a block away from where I stopped. I pulled it into a parking lot to get it off the street. I had it towed from the parking lot to a garage to have it looked at and I was shocked to find out that I was out of oil even though the dash read 29% before needing another oil change. NO OTHER WARNING that I was losing oil. The mechanic notified me to let me know that I had a blown engine. I'm furious with GMC right now because I had overheard approximately a couple months ago while getting my oil changed that GMC engines were going out left and right and now it's happened. to me. I don't even want to think about what could have happened to my son and I if on the interstate being very short notice
The contact owns a 2014 GMC Terrain. The contact stated while driving at various speeds, there was oil leaking from the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the PCV valve was frozen and caused oil to leak from the vehicle. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 79,000.
My engine Burns a very large amount of oil rapidly. I have to replace oil in the engine at least twice a week. I went to the Automotive Service Center and they indicated that my timing chain need to be readjusted and that the engine itself between the year of 2010 and 2017 on gmc terrains have major problems/ defects in with the engine. I was driving on the highway and the car slowed down I barely could get any acceleration. I then had to get off of the expressway to avoid collisions. I took my car to the shop several other times for automatic brake system problems and stability track problems. I had censors replacedvand stability track problens. They wrre fixed but the automotive technicians indicated they the oroblems will happen again. Soon after that my engine was low of oil again within the matter of two or three days. The problem (massive oil consumption) continues to happen. I have investigated the problem and I found that there were engine class action lawsuit on the GMC 2014 Terrain because of the engine problems. I need to know how I can get my problems with the engine in particular resolved so that I can move forward and not worry about being involved in a motor vehicle accident when I drive to work each day.
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