2016 GMC TERRAIN Complaints

The timing chain snapped and caused the engine to seize on our 2016 GMC Terrain 2.4L SLC-1 SUV/Truck. Since this has occurred multiple times on the 2.4L engines in this model from 2012 - 2016, we believe that there should be a recall as this issue could cause a major accident if the timing chain snaps or breaks while traveling. It had 101000 miles on it when we bought it used from Klein Automotive, on April 12, 2024. We have only had it for 2 years and 4 months and kept it in good repair. We took it in for its oil change, brought it home, went to dinner 4 days after and the very next day it wouldn't start. We thought it was most likely the starter/solenoid, but the mechanic said those were both fine and that's when we got the bad news that the motor was shot because the timing chain broke which caused some engine rods to break. The GMC dealer, in Marinette, WI, we brought our used 2016 GMC Terrain to, told us that the timing chain stretched and broke the rods in the engine and therefore both the timing chain and engine need to be replaced. The check engine light was turning on all of the time, and we were told that it was because it needed the 88 fuels (medium grade). As long as we put in the 88, the light check engine light stayed off. We believe there should be a recall for the 2012 - 2016 GMC Terrain SLC-1 2.4L timing chain and engine. We also need assistance with the cost of the repairs because I'm on a limited income and cannot afford the $10,000 cost of getting this repaired, while I still owe $7800 on it.

For an undetermined amount of time- many months for certain, I have been unable to get the key removed from the ignition when the car is shut off and placed in the locked position. I am forced to start and shut off the car for multiple times before I am finally able to remove the key. There is no rhyme no reason as to why the key finally decides to come out. This is obviously caused no accidents, however, it has become a constant source of frustration as it happens constantly. I have taken it to the dealership, and other than charging me for their exam, they had no answers as to the problem or how to resolve it. That was an absolute waste of time, and certainly my money. I have also taken it to a couple of other places without any diagnosis of the problem. I am finally taking it to someone who I know to be reputable, and hope the diagnosis can be made, without tremendous expense on my part.

My cousin thought I had a trailing arm bushing was bad on the driver's side. The subframe holding the trailing arm rusted out completely. He was able to put his thumb through it with little pressure when trying to see if it can be fixed.

My 2016 GMC Terrain 2.4L Ecotec first stalled while idling at a red light in Raleigh, NC. I restarted it and it sounded different, so I drove it home. The next morning it would not start. The failure occurred at approximately 69,939 miles with no meaningful warning. The dealer’s diagnostic report states there were no current relevant codes and no relevant codes in history. The dealer documented major timing-system failure: timing chain tensioner failure, timing chain guide failure, a timing chain guide bolt pulled out of the cylinder head, aluminum contamination in the cylinder head/oiling system, and engine replacement recommended. The vehicle was found unsafe to operate. This vehicle regularly transported my family, including my children. If the stall/no-start failure had occurred at highway speed, while merging, or in heavier traffic, it could have created a serious crash risk. The oil was maintained outside the dealership network and had been serviced before failure. I also topped off the oil shortly before this occurred. The 2.4L Ecotec engine family is known for oil-consumption issues, yet this vehicle gave me no direct warning that oil consumption had reached a dangerous level. A reasonable owner would not know to check oil every day when there were no relevant stored warning codes. Other NHTSA complaints involving 2016 GMC Terrain vehicles describe similar patterns: oil consumption, no warning lights, sudden stalling or no-start conditions, timing-chain failure, and engine replacement recommendations. I am filing because this appears to be an ongoing safety risk involving oil consumption without adequate warning, timing-chain/timing-guide failure, internal contamination, and sudden engine failure. I request NHTSA review this issue for investigation or recall expansion before this failure mode causes a preventable serious crash, injury, or fatality. The vehicle was inspected by a GMC dealer and remains unrepaired.

Windshield wiper mechanism broke while driving in heavy heavy rain near [XXX] . Extremely dangerous situation and almost resulted in a crash but I was able to make my way off of the interstate safely. Huge inconvenience because we had to wait out the rain! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

During heavy rainfall in the mountains at dawn, my windshield wipers suddenly have stopped working. We can manually move the wipers with ease and can hear the motor engaging but both front wipers suddenly stopped. We were 1200 miles from home on what was supposed to be a vacation. Carvana reports 2 recalls for my reports but the dealerships have no recalls for my year of vehicle.

My vehicle started turning off suddenly when stopped and then when starting to move. I replaced my rear seal. A week later, I have oil in my timing and my engine no longer works. I have had it checked by a shop. No warning was given. I have my oil checked regularly and changed on time. I had a car full of people, adults and children, in rush hour traffic. The car is sitting in my driveway as I will need to negotiate with the lender on money owed. I am currently without a safe vehicle to drive, and I need that as I am a caregiver and home aid.

I check my oil every time I get gas as to ensure that i don't go below the threshold for the oil, as I know these engines have an oil consumption issue. My terrain started having a loud grinding sound after losing power on the highway and I was able to pull off before the car died completely over 60 miles from home. I have since changed the upstream, and downstream O2 sensors (they needed it), VVT solenoids, and now going to be required to change my catalytic converter because the excessive oil consumption has clogged it almost completely. Why will GM not issue a recall for this engine and get it fixed, when they have knowledge that there is an issue. A recall was issued for previous years (on the same model) having the same issue, but yet we are left to "figure it out" at our own expense? Come on GM and the NHTSA, get it together and issue a recall already, you have all the complaints, and history you need to start one.

Carr paused, and then stopped in the middle of the highway, without any warning lights or identifiers. Other vehicles had to come to abrupt stops or even veer to avoid hitting me the manufacturer is aware, and has had a large lawsuit settlement due to a faulty rear seal causes massive internal oil consumption without any warning to the operator of of the vehicle. My research has shown that it is a catastrophic common issue with this vehicles model and year a certified GMC dealership has identified this as the reason for the sudden shut down without warning, not one warning light illuminated to indicate low or any other issue. The car has had regular oil changes and maintenance. This well-known defect should normally be caused for alarm and the safety of drivers would also for a mass recall.

excessive oil consumption....caused engine to fail....yes, car is available for inspection ...caused the car to lag and initially break down without any warning lights ...confirmed form dealer new engine needed...law suits in other states have proven that this seal problem has been known to GMC for years and they haven't repaired these faulty parts...again, no warning lights came on...please assist