2015 GMC Terrain Engine Problems
- Complaints
- 81about this part
- Share
- 27%of 299 total for the year
- Median mileage
- 83,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 81 complaints about the engine of the 2015 GMC Terrain, 27% of the 299 complaints for this model year. Where a mileage was given, the median is 83,000 miles. 1 of these say a crash was involved and 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I had a brand new motor put in my car at 73547 miles and now at 124079 I am having the same issues. They told me that they won't pay for it because the 100,000 warranty is up. The new parts that I put in my car will have a warranty, but the new motor that I put in my car went under the old power train warranty. Check engine light came on while driving to dealership to get an oil change and I had it towed right away to fm dealer.”
NHTSA complaint #11389844, filed 2021-01, 124,079 miles“I have a serious problem with my car the dealership to me my coil ignition has a crack in it and the is a lot carbon build up. I just bought the car in april of 2019 & I was told by car-fax the car had a 165 point inpection done on it”
NHTSA complaint #11307631, filed 2020-02, 73,000 miles“I have been having problems with my car sense I have owned it . From day one it started with my wheels rubbing and scrubbing when in motion .I called dealership had repairs done on it for the first 7 months .I reported the problem back then to you all. Then after 3 yrs I started to feel some hesitation when sitting or taking off .then the forth year my power steering light comes on had that fixed now my engine light keeps coming on car still having some hesitation on and off . …”
NHTSA complaint #11343430, filed 2020-08, 38,400 miles“On 1/10/18, I was on my way to work and received message engine power reduced , the engine light came on and power was reduced to 25 MPH. I brought the Terrain into a mechanic and he synchronized the gas pedal sensor and fuel sensor and the engine light went out. On 1/13/18, the same thing happened except I was on a highway and it was much more frightening. I brought the Terrain back to my mechanic and left the vehicle. I am now without a car for the weekend.”
NHTSA complaint #11062638, filed 2018-01, 57,400 miles“To whom it may concern, yesterday, 3/22/15, my wife and I were driving while carol took her foot off the gas pedal as we were approaching a stop light. At that time the car started accelerating. Is this a new problem or has it been reported before? Who do I contact to investigate this issue and ensure that my vehicle is safe? My daughter bought a 2014 Gmc Terrain last year and I'm concerned about her vehicle as well.”
NHTSA complaint #10701021, filed 2015-03, 3,000 milesRelated service bulletins
- 11026017Jun 5, 2025This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
- 11024485May 15, 2025The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 11020254May 7, 2025This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in…
- 11017263Mar 25, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11016942Mar 4, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11014233Jan 30, 2025This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11011900Nov 22, 2024This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 11011709Nov 5, 2024This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 1 | 3% |
| 2025 | 2 | 15% |
| 2024 | 11 | 21% |
| 2023 | 15 | 37% |
| 2022 | 10 | 17% |
| 2021 | 10 | 28% |
| 2020 | 58 | 29% |
| 2019 | 70 | 37% |
| 2018 | 55 | 24% |
| 2017 | 79 | 59% |
| 2016 | 46 | 30% |
| 2015 | 81 | 27% |
| 2014 | 123 | 41% |
| 2013 | 198 | 54% |
| 2012 | 169 | 46% |
| 2011 | 178 | 46% |
| 2010 | 107 | 37% |
Other parts of the 2015 GMC Terrain
120 complaintsElectrical system
31 complaintsExterior lighting
24 complaintsOther or unknown
21 complaintsTransmission and drivetrain
21 complaintsFuel system
18 complaintsAir bags
17 complaintsBody and structure
14 complaintsBrakes
9 complaintsElectronic stability control
8 complaintsEngine cooling
4 complaintsVehicle speed control
3 complaints
← All problems reported for the 2015 GMC Terrain
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology