hello i'm writing this letter to inform you about my 2012 Terrian i have had nothing but problems with the motor and now the muffler system i have had all recalls done on this and GM is well aware of this problem i have a dealer ship to replace the timing in this motor and still uses oil and still have all the problems after the recalls have been fixed now they want me to pay over $3,000 to have new catalytic converters fixed on it now after paying $2800 for a new timing seems to me GM likes to fix the cheap stuff on these cars and make customers pay for the expensive parts must people can't afford this and junk the vehicle i will not i'm going to fight for what is right the dealer ship even told me when i took it back in to see what the code was for that GM is well aware of it and not worth putting the money into the car this is not right for customers to spend this kind of money GM needs to handle this.

- Colon, MI, USA

The contact owns a 2012 GMC Terrain. The contact stated that while driving at 65 MPH, the vehicle inadvertently lost all motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle was able to restart, but failure persisted. The traction control warning light was illuminated. The vehicle was towed to an independent mechanic, who was able to diagnose the failure, but the contact was unable to recall the specifics. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

- South Newport, OH, USA

My 4 cyl. AWD GMC Terrain has had excessive oil use which caused premature failure of the timing chain, loss of power/compression, blown engine, damage to exhaust manifold, cellinoids, and melted the catalytic converter. Its was a road safety, poor emissions due to failed catalytic converter. Headlights are too bright for oncoming traffic at night. Another road & safety hazard. Auto warranty is refusing to cover parts listed above caused by the timing chain and excessive oil consumption problems.

- Butler, PA, USA

The contact owns a 2012 GMC Terrain. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to coast the vehicle to the shoulder of the roadway, and the vehicle failed to restart. No warning lights were illuminated. The vehicle was not taken to the dealer nor an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

- Janesville, WI, USA

I still have more to add to my other complaint. The fire started with alternator apparently there were crossed wires took alternator back to Orielys where I got it warrented out fixed the expanded wiring and replaced a hose and other things damaged by the little fire. Then after that things kept getting worse. Then it was spark plugs that were rusted that I replaced eventually I complained back to the dealership I got the car from and they agreed to help repair it after a posting by me on fb that I wasent a happy customer basically and that I literally had a sitting duck. Turns out the timing chain needed to be replaced and other little things. I've replaced O2 sensors camshaft sensors gaskets in catalytic converter had it inspected thinking it was a clogged exhaust the excessive oil usage was insane I would be going through 5quarts twice a month! I'm just tryna have a DECENT WORKING VEHICLE for my kids and I. I literally can't keep a job because I DONT HAVE RELIABLE transportation....I've put sooooo much money into this vehicle and now I might have a blown gasket!!! And that's because I haven't even been driving the vehicle. I got the car on Jan 7th 2021 with 129,043 miles on it as of today it has a total of 164,627 miles on it meaning in between the two years that I've owned the vehicle I have only put a total of 35,584 miles on it.....for it to have this many problems for so little mileage is INSANE!!! my kids were in the car with me today when the car started smoking like crazy from under hood and exhaust I pulled over turned the car off and took my baby off car seat in all and got away from vehicle thinking it was on fire again. I popped the hood and notice it was coming from under manifold.....meaning its probly a blown gasket after I just replaced the camshaft sensor AGAIN......it's ridiculous all the stuff thats going wrong with this vehicle with so little mileage that's been put on it.

- Sunnyside, WA, USA

First off before I got the car it had gone through a tune up. About a couple months after I got the car little things started to happen it would rock back and forth while idling I thought it was kind of an indicator that it needed oil but the percentage was still at a decent range and telling me it didn't need oil plus I hadent driven it 3000-5000 miles. Then engine light came on had it inspected codes ran came back telling me something about Throttle body So I purchased a whole new throttle body in Prosser at dealership costing me some booko buks and swapped it out when I got back home I then took it for test drive along with my 4 kids in the vehicle with me and then a little ways about 20 mins driving engine power reduced light came on along with stabilitrak and eventually lost power I was stranded in the middle of summer in the middle of nowhere with my kids windows rolled down ppl drove by and asked if I needed help and eventually came back with jumper cables tried to jump me but the car wouldn't budge I then left the car there overnight and took battery out to have it inspected the next day IT WAS FRIED (over 4 yrs old) so I had to purchase a new one costing me roughly 150 buks then took it back to where my car was stranded put it in and alarm went off and I clicked the button on key ring stuck it in ignition sh*t the door behind me locking keys in car while vehicle was still running and had to bust a window out to get to em. Got into car drove off made it back to my apt left it running outside while I went inside to get some stuff before I THOUGHT the problem was solved it shut off again.....I then had to replace the alternator costing me another pretty penny....about a couple weeks later I was starting a new job at a assisted living facility and arrived 10 mins early sh*t car off a noticed smoke coming from under hood I was confused because where the smoke was coming from couldn't have been it overheating I popped the hood and my car was on fire!!!!

- Sunnyside, WA, USA

MASSIVE OIL CONSUMPTION!! Ever si Fr the purchase of the vehicle there has been massive oil consumption leak. Taken back to the dealer for service to take care of the problem, they claim they don-??t see a problem! This car has been oil leaking and also draining oil somewhere to the engine causing also power rain engine issues and also contact oil light on. Reported to GMC as well and corporate, no response! This vehicle has cut off and lost power because of oil consumption on highway with my children in the car! I have been emailing with no avail! This matter needs to be rectified immediately! It is a death trap!

- Dallas, TX, USA

I just spent 1,600 dollars to replace the timing chain. I know their were recalls on this, I was wondering why my vin and model were not included in these recalls?

- Dunnellon, FL, USA

Excessive oil consumption caused blown engine

- Rice, VA, USA

I am having trouble with these things now. The powertrain especially I have not had accident yet but it keeps going dead on me in the middle of driving down road. Causing me to have to put in neutral and restart. At this time the steering goes out. This needs to be repaired before an accident does happen. The drivers seat does not move forward or backwards. The tire pressure warning does not warn until it is at 20 psi.

- Silver Creek, GA, USA

Says powertrain control module failure. Also oxygen sensor on the my gmc app. It keeps cutting off in the middle of road.

- Lindale, GA, USA

Burning oil engine power reduced bucking stalling

- Irvington, NJ, USA

The contact owns a 2012 GMC Terrain. The contact stated that he was informed that there was no oil inside the vehicle upon taking the vehicle to an independent mechanic for the first oil change. No warning lights appeared on the instrument panel prior to the discovery. The manufacturer was notified of the failure and the contact was given a voucher to have the vehicle inspected. The contact was informed that the failure was due to defective piston rings that were too expensive to be replaced. As a result, the engine became inoperable. The vehicle was diagnosed with engine failure. Prior to the engine failure, the contact also stated that the vehicle revved and accelerated independently without warning, while driving at various speeds. The contact noted that prior to the engine failure, both windshield wipers were defective due to the windshield wiper transmission. Both windshield wipers were replaced on three separate occasions. The vehicle was not repaired. The failure mileage was approximately 55,000.

- Wilmington, DE, USA

Car is burning excessive amount of oil. Now the engine has seized

- Cranston, RI, USA

Code-P0014-camshaft positionb timing over-advanced or system.code-P0300 random/muitiple cylinder misfire.computerized engine analysis.recalls#50490-50491

- Alliance, OH, USA

Have a serious oil consumption problem have to have oil changed every 500 miles, it starts to shake when start up it turns off keep getting camshaft codes also got misfire code

- Stafford, VA, USA

Vehicle shuts off when slowing to a stop and have to restart in order to accelerate. That was looked at and 'fixed' and now the vehicle shakes when slowing down and headlights dim as if it is trying not to shut off. Engine is very rough and rattles while starting to accelerate and accelerating. When brakes are pushed the car starts to turn off while in motion. When stopped, car shakes and there is a very hard knocking coming from the engine.

- Elverson, PA, USA

Transfer case went at 67K just bought it used at 63K. I had no warranty only 60 day from used dealer I bought it from. Ruined my passenger side axel also when transfer case went $1137 was the bill. 500 for used case 16K 170 for axel 30 for fluid rest in labor. Should be a recall car sounded awful back up and in drive loss a bit of power when driving. Also.

- Rumford, RI, USA

The contact owns a 2012 GMC Terrain. While driving various low speeds, the vehicle stalled and shut off without warning. After the vehicle was restarted, the vehicle jerked and then resumed normal operation. The dealer and manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 101,000.

- Wichita, KS, USA

While driving a short distance on a city street I heard a thud followed by a grinding noise and lack of power. Vehicle was towed to a trusted mechanic that I have known and used for years. Diagnosed with a crack in the transfer case. Mechanic had difficulty finding a part and was informed by someone at the GMC dealer that this part was on back order because of an issue known by GMC but a recall had not been issued. New part would not be available for over a month and repairs were needed since it is my primary vehicle. A used part with a warranty was found and was installed for a total of $1500. Vehicle power train warranty was expired. Less than 3 months after transfer case was replaced with a used part - the replacement part cracked in the same exact spot as the original. Luckily, the part was still covered by a warranty but local mechanic recommended diagnosis by dealer to determine if there is an issue with the transmission. Contacted GMC to see if they were aware of the issue and they said they were not.

- Albany, NY, USA