2012 GMC TERRAIN Complaints

View complaints related to 2012 GMC TERRAIN. The complaints found here are submitted by actual consumers with first hand experience. There are more than 350 complaints submitted for the 2012 GMC TERRAIN. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.

  • 2012 GMC TERRAIN
    - Hanover, PA

    The rear tailgate on a 2012 GMC Terrain has auto lift and close. The tailgate opens, but wont stay open then closes hitting you in the head. The heavy tailgate comes down hitting you in the head, and it takes a lot to hold the gate up. I called the dealer who said it could be the power lift. He said there was a previous recall to fix the same issue, but that part is not holding. I spoke with the dealer and found issued on line. No warning lamps or messages appeared.

    Source: NHTSA WEB SITE
  • 2012 GMC TERRAIN
    - Seattle, WA

    Driving in heavy rain south on the I-5 at 545p. In peak traffic and wipers suddenly just stopped while going 60mph in the carpool lane. As we past the exit for I-405 There was no shoulder to pull off of on my left. I had to cross over 5 lanes until I could safely get off the freeway. Then drive another 5 miles on side streets getting out an manually moving the wipers every few blocks so i could see. I'm female and over 50 yrs old. There was not a place I felt safe to just pull over at night. I stopped at a friend's. I can hear the motor moving but the wipers are not. I do not recall ever seeing the recall on the ball bearings and nor the wiper linkage but found one. However I'm have 72k miles and have owned it for 10 yrs.6 months. So it may not be covered, which I believe is not fair. I almost died and could have caused other deaths just trying to safely maneuver off the freeway, which I felt was safer than sitting on the side of a very dangerous section of the freeway. I know people with cars over 40 yr old that were left outside with over 200k miles and the wipers have never just died. I am the original owner and my car has been garaged for over 95% of the time when not in use. I will call the dealership in the morning but trying to get ahead of this since articles are saying there are no parts. Scared and frustrated.

    Source: NHTSA WEB SITE
  • 2012 GMC TERRAIN
    - Springdale , AR

    Gmc in Springdale, AR Refused to fix catalytic convertor after selling me a defective vehicle. They said it had expired and I never received the letter letting me know there was an issue with the vehicle.

    Source: NHTSA WEB SITE
  • 2012 GMC TERRAIN
    - Sunnyside, WA

    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.

    Source: NHTSA WEB SITE
  • 2012 GMC TERRAIN
    - Sunnyside, WA

    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 shit 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 shit 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!!!!

    Source: NHTSA WEB SITE
  • 2012 GMC TERRAIN
    - Romulus, MI

    The contact owns a 2012 GMC Terrain. The contact stated while driving at various speeds, the vehicle would suddenly stall. There was no warning light illuminated. Upon inspecting the vehicle, the contact discovered that there was no presence of engine oil inside the engine. The contact stated that the vehicle was experiencing excessive oil consumption, and he had been refilling the engine oil reservoir weekly. The vehicle was taken to an independent mechanic who diagnosed that the engine piston rings were faulty, causing the rapid oil consumption. The vehicle was not repaired. The manufacturer and local dealer were notified of the failure but no assistance was provided. The failure mileage was 97,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2012 GMC TERRAIN
    - Haslet, TX

    The contact owns a 2012 GMC Terrain. The contact received notification of NHTSA Campaign Number: 22V137000 (Exterior Lighting) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the passenger's side headlamp failed to provide proper illumination. The dealer was made aware of the failure; however, the vehicle was not diagnosed nor repaired. The dealer confirmed that parts were not yet available. The manufacturer was made aware of the failure and confirmed that parts were not yet available. The failure mileage was approximately 35,000. Parts distribution disconnect.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2012 GMC TERRAIN
    - Shreveport , LA

    secondary air pipe leaks and is not produced anymore! Vehicle can not meet emissions standards ! Vehicle uses Oil due to faulty pct system

    Source: NHTSA WEB SITE
  • 2012 GMC TERRAIN
    - Baltimore, MD

    The contact owns a 2012 GMC Terrain. The contact received notification of NHTSA Campaign Number: 22V137000 (Exterior Lighting) however, the part to do the recall repair was not yet available. The dealer was not made aware of the issue. The manufacturer was made aware of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. VIN tool confirms parts not available.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2012 GMC TERRAIN
    - Dallas, TX

    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!

    Source: NHTSA WEB SITE