2012 GMC Terrain Other or unknown Problems
- Complaints
- 37about this part
- Share
- 10%of 364 total for the year
- Median mileage
- 63,622miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 37 complaints about the other or unknown of the 2012 GMC Terrain, 10% of the 364 complaints for this model year. Where a mileage was given, the median is 63,622 miles. 2 of these say a crash was involved and 2 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“To whom it may concern: please note that I have observed my vehicle a profound amount of water entering the vehicle somewhere within, at, or in vicinity of the front passenger side of the vehicle and driver's side (front). This occurs during rain-fall. My vehicle began displaying an odor and showing white-yellowish colored matter in the carpet area. …”
NHTSA complaint #11162184, filed 2018-12, 61,345 miles“When I come complete stop or waiting for the light to change. The truck shakes or act it wants cut only with eco button is push on. This does not happen while driving only when I come your complete stop. If the is cut off do not have problem runs fine. Dealer was in form he said nothing they can until the engine light comes on..”
NHTSA complaint #11152495, filed 2018-11, 70,030 miles“The back gate comes down on your head when you are trying to put things in back or take things out, almost immediately. It has hit my head several times causing immense pain and a migraine. It started in july of 2019 and was slow at first. Now it happens almost immediately.. It has hit my head several times and my son. I saw there were problems with this model with this issue. Gmc tells me it is not covered.”
NHTSA complaint #11311490, filed 2020-02, 75,000 miles“When I have my eco light at stopping or sitting it will cause the vehicle to shake or like it stall or wants to cut off cut off. When the eco is turned I don't have that problem. The engine is notown what is this problem? This happens on street not the highway on when sitting at a stop.”
NHTSA complaint #11152490, filed 2018-11, 70,030 miles“2012 gms Terrain 4 cylinder flex fuel- camshaft code, cam sensors replaced, spitting and sputtering, stalled x3 and shut off, fuel consumption noted, loss of power. Gmc dealership refused to perform diagnosis on my car due to my refusal to pay for ruling out the documented fuel leak recall/special coverage. My request was only to have fuel the issue looked at and ruled out, nothing further, to ensure this was not causing my problem. …”
NHTSA complaint #11091129, filed 2018-05, 122,000 milesRelated service bulletins
- 11037253Sep 4, 2026This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11032947May 19, 2026This document provides the technician with a diagnostic tip if the vehicle stalls and set diagnostic trouble code P0191 and may also set P0172. The diagnostic tip has the…
- 11030974Apr 1, 2026This preliminary information communicates information about how to determine if a wheel and tires size change is available.
- 11030092Mar 9, 2026This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
- 11030091Mar 9, 2026This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11027601Jan 8, 2026This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11025755Nov 20, 2025This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s…
- 11023091Sep 9, 2025New Vehicle Monitoring Programs Section in IVH
- 11022084Aug 14, 2025This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11021792Aug 7, 2025This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the…
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 9 | 27% |
| 2025 | 2 | 15% |
| 2024 | 12 | 23% |
| 2023 | 7 | 17% |
| 2022 | 9 | 15% |
| 2021 | 4 | 11% |
| 2020 | 36 | 18% |
| 2019 | 21 | 11% |
| 2018 | 36 | 16% |
| 2017 | 20 | 15% |
| 2016 | 13 | 9% |
| 2015 | 21 | 7% |
| 2014 | 16 | 5% |
| 2013 | 27 | 7% |
| 2012 | 37 | 10% |
| 2011 | 34 | 9% |
| 2010 | 18 | 6% |
Other parts of the 2012 GMC Terrain
169 complaintsVisibility (wipers, defrost, mirrors)
81 complaintsTransmission and drivetrain
37 complaintsElectrical system
32 complaintsFuel system
29 complaintsAir bags
25 complaintsElectronic stability control
13 complaintsBody and structure
12 complaintsVehicle speed control
11 complaintsExterior lighting
10 complaintsSeat belts
9 complaintsSteering
7 complaints
← All problems reported for the 2012 GMC Terrain
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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