2012 GMC Terrain problems & reliability
364 owner complaints filed with NHTSA for the 2012 GMC Terrain, alongside 4 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
16 complaints report injuries (19 injured).
Federal crash records (FARS 2020–2023): 2012 GMC Terrain vehicles were involved in 60 fatal crashes with 36 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Engine | 169 | 46% |
| Visibility/wiper | 74 | 20% |
| Power Train | 37 | 10% |
| Unknown OR Other | 37 | 10% |
| Electrical System | 32 | 9% |
| Fuel/propulsion System | 28 | 8% |
| Air Bags | 25 | 7% |
| Electronic Stability Control (esc) | 13 | 4% |
| Structure | 12 | 3% |
| Vehicle Speed Control | 11 | 3% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 82,050 miles (middle 50% between 59,638 and 106,000 miles), based on 252 complaints that included mileage.
Complaints by incident year
What owners report
“My car has started stalling and dying when i slow down, take off or when idling. No power when accelerated, and the smell of exhaust comes into my car. I was making a turn from a red light and my car spit, sputtered, and died right in the middle of the busy intersection. I was almost hit from the rear and another car…”
Fuel/propulsion System · filed Jun 2, 2026
“The engine blew. This was already the 2nd engine in the car. Oil consumption. Metal in the oil. No signs. Needs new engine”
Engine · filed Mar 9, 2026
“The oil is depleting every month from the vehicle. Every 2-3 weeks I have to put oil in the vehicle because the oil is being absorbed. Is there a recall on this problem.”
Engine · filed Feb 25, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Momentary Increased Steering Effort
Preliminary Evaluation PE20009 · opened Jun 1, 2020 · closed Jun 3, 2022
- Front Wiper Transmission Inoperative
Engineering Analysis EA19005 · opened Dec 13, 2019 · closed Nov 28, 2022 · led to recall 22V165000
- Windshield Wiper Transmission Failure
Recall Query RQ18002 · opened Nov 2, 2018 · closed Dec 19, 2019
Technical service bulletins
1,840 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2012 GMC Terrain. The 10 most recent:
This 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 technician inspect the high pressure fuel pump…
PIP6113 · Service Bulletin/Repair Instructions · issued May 19, 2026
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
PIT3271Q · Service Bulletin/Repair Instructions · issued Apr 1, 2026
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
PIP6104 · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902V · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902U · Service Bulletin/Repair Instructions · issued Jan 8, 2026
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions…
PIT5214G · Service Bulletin/Repair Instructions · issued Nov 20, 2025
New Vehicle Monitoring Programs Section in IVH
13598 · Other · issued Sep 9, 2025
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902T · Service Bulletin/Repair Instructions · issued Aug 14, 2025
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may…
PIC5650M · Service Bulletin/Repair Instructions · issued Aug 7, 2025
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902S · Service Bulletin/Repair Instructions · issued Jun 9, 2025
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2012 GMC Terrain has 4 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2012 GMC Terrain?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 82,050 miles — budget accordingly if the car is approaching that mileage.