The 2026 GMC Terrain presents average reliability, but potential buyers must scrutinize its brake system.
Calculated from 10,000+ NHTSA, EPA & owner-complaint data pointsHow we score
2025 modelSpecifications by model year
Every section below is populated from the available EPA, NHTSA, and vehicle-specification data for this model.
EPA-rated city, highway, and combined economy by year.
| Year | City MPG | Highway MPG | Combined MPG | City L/100 km | Highway L/100 km | Combined L/100 km |
|---|---|---|---|---|---|---|
| 2026 | 24 | 28 | 25 | 9.8 | 8.4 | 9.41 |
| 2025 | 24 | 28 | 25 | 9.8 | 8.4 | 9.41 |
| 2024 | 23 | 28 | 25 | 10.23 | 8.4 | 9.41 |
| 2023 | 24 | 29 | 26 | 9.8 | 8.11 | 9.05 |
| 2022 | 25 | 28 | 26 | 9.41 | 8.4 | 9.05 |
| 2021 | 25 | 28 | 26 | 9.41 | 8.4 | 9.05 |
| 2020 | 21 | 26 | 23 | 11.2 | 9.05 | 10.23 |
| 2019 | 21 | 26 | 23 | 11.2 | 9.05 | 10.23 |
| 2018 | 21 | 26 | 23 | 11.2 | 9.05 | 10.23 |
| 2017 | 16 | 23 | 18 | 14.7 | 10.23 | 13.07 |
| 2016 | 16 | 23 | 18 | 14.7 | 10.23 | 13.07 |
| 2015 | 17 | 24 | 19 | 13.84 | 9.8 | 12.38 |
| 2014 | 17 | 24 | 19 | 13.84 | 9.8 | 12.38 |
| 2013 | 16 | 23 | 19 | 14.7 | 10.23 | 12.38 |
| 2012 | 16 | 23 | 19 | 14.7 | 10.23 | 12.38 |
| 2011 | 16 | 23 | 19 | 14.7 | 10.23 | 12.38 |
Powertrain specifications can vary between model years.
| Year | Body style | Cylinders | Displacement | Fuel type | Transmission | Drivetrain |
|---|---|---|---|---|---|---|
| 2026 | suv | 4 | 1.5 | Regular | Automatic 8-spd | All-Wheel Drive |
| 2025 | suv | 4 | 1.5 | Regular | Automatic 8-spd | All-Wheel Drive |
| 2024 | suv | 4 | 1.5 | Regular | Automatic 9-spd | All-Wheel Drive |
| 2023 | suv | 4 | 1.5 | Regular | Automatic 9-spd | Front-Wheel Drive |
| 2022 | suv | 4 | 1.5 | Regular | Automatic 9-spd | All-Wheel Drive |
| 2021 | suv | 4 | 1.5 | Regular | Automatic | All-Wheel Drive |
| 2020 | suv | 4 | 2.0 | Premium | Automatic | All-Wheel Drive |
| 2019 | suv | 4 | 2.0 | Premium | Automatic 9-spd | All-Wheel Drive |
| 2018 | — | 4 | 2.0 | Premium | Automatic | All-Wheel Drive |
| 2017 | — | 6 | 3.6 | Regular | Automatic 6-spd | All-Wheel Drive |
| 2016 | suv | 6 | 3.6 | Regular | Automatic 6-spd | All-Wheel Drive |
| 2015 | suv | 6 | 3.6 | Regular | Automatic 6-spd | Front-Wheel Drive |
| 2014 | suv | 6 | 3.6 | Regular | Automatic 6-spd | Front-Wheel Drive |
| 2013 | suv | 6 | 3.6 | Regular | Automatic 6-spd | All-Wheel Drive |
| 2012 | suv | 6 | 3.0 | Gasoline or E85 | Automatic 6-spd | All-Wheel Drive |
| 2011 | suv | 6 | 3.0 | Regular | Automatic 6-spd | Front-Wheel Drive |
Original pricing and model configuration where available.
Seating, cargo, and physical configuration by model year.
| Year | Seats | Doors | Cargo (L) | Cargo (cu ft) | bodyAndInterior | mechanical | Keyless ignition | Steering location | Seat rows | Axles | Wheels | Wheelbase | Front wheel | Rear wheel |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2025 | — | — | — | — | Keyless ignition: Standard | — | Standard | — | — | — | — | — | — | — |
| 2024 | — | — | — | — | Keyless ignition: Standard | — | Standard | — | — | — | — | — | — | — |
| 2023 | — | — | — | — | Keyless ignition: Standard | — | Standard | — | — | — | — | — | — | — |
| 2022 | — | — | — | — | Keyless ignition: Standard | — | Standard | — | — | — | — | — | — | — |
| 2021 | 5 | — | — | — | Keyless ignition: Optional, Steering location: Left-Hand Drive (LHD), Seat rows: 2 | Axles: 2, Wheels: 4, Wheelbase: 107.3, Front wheel: 17, Rear wheel: 17 | Optional | Left-Hand Drive (LHD) | 2 | 2 | 4 | 107.3 | 17 | 17 |
| 2020 | 5 | — | — | — | Keyless ignition: Standard, Steering location: Left-Hand Drive (LHD), Seat rows: 2 | Axles: 2, Wheels: 4, Wheelbase: 107.3, Front wheel: 17, Rear wheel: 17 | Standard | Left-Hand Drive (LHD) | 2 | 2 | 4 | 107.3 | 17 | 17 |
| 2019 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2018 | 5 | 4 | — | — | Keyless ignition: Standard, Steering location: Left-Hand Drive (LHD), Seat rows: 2 | Axles: 2, Wheels: 4, Wheelbase: 107.3, Front wheel: 17, Rear wheel: 17 | Standard | Left-Hand Drive (LHD) | 2 | 2 | 4 | 107.3 | 17 | 17 |
| 2017 | 5 | 4 | 895 | 31.6 | Keyless ignition: Optional, Steering location: Left-Hand Drive (LHD), Seat rows: 2 | Axles: 2, Wheels: 4, Wheelbase: 112.5, Front wheel: 18, Rear wheel: 18 | Optional | Left-Hand Drive (LHD) | 2 | 2 | 4 | 112.5 | 18 | 18 |
| 2016 | 5 | 4 | 895 | 31.6 | — | — | — | — | — | — | — | — | — | — |
| 2015 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2014 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2013 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2012 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2011 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
NHTSA safety ratings and listed driver-assistance availability.
| Year | Side crash | Rollover | Rated vehicle | abs | esc | tractionControl | tpms | adaptiveCruiseControl | autoBrake | forwardCollisionWarning | pedestrianAeb | blindSpotMonitoring | laneDepartureWarning | rearCamera | rearCrossTrafficAlert | rearAeb | parkAssist | adaptiveDrivingBeam | autoReverseSystem | Overall rating | Frontal crash | blindSpotIntervention | laneCenteringAssist |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 5 | 4 | 2026 GMC TERRAIN SUV N/A AWD | standard | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2025 | 5 | 4 | 2025 GMC Terrain SUV AWD | standard | standard | standard | standard | standard | standard | standard | standard | standard | standard | standard | standard | standard | standard | standard | standard | — | — | — | — |
| 2024 | 5 | 4 | 2024 GMC Terrain SUV AWD | standard | standard | standard | standard | optional | standard | standard | standard | optional | standard | standard | standard | standard | standard | standard | standard | 5 | 5 | optional | — |
| 2023 | 5 | 4 | 2023 GMC Terrain SUV AWD | standard | standard | standard | standard | optional | standard | standard | standard | standard | standard | standard | standard | standard | optional | standard | standard | 5 | 5 | — | standard |
| 2022 | 5 | 4 | 2022 GMC Terrain SUV AWD | standard | standard | standard | standard | optional | — | standard | — | optional | standard | standard | standard | — | standard | standard | standard | 5 | 5 | — | — |
| 2021 | 5 | 4 | 2021 GMC Terrain SUV AWD | standard | standard | standard | standard | optional | standard | standard | standard | optional | standard | standard | optional | — | optional | standard | standard | 5 | 5 | — | — |
| 2020 | 5 | 4 | 2020 GMC Terrain SUV AWD | standard | standard | standard | standard | optional | standard | standard | standard | optional | standard | standard | optional | — | optional | standard | standard | 5 | 5 | — | — |
| 2019 | 5 | 4 | 2019 GMC Terrain SUV FWD | — | — | — | standard | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 | — | — |
| 2018 | 5 | 4 | 2018 GMC Terrain SUV FWD Later Release | standard | standard | standard | standard | — | optional | optional | — | optional | optional | standard | — | — | optional | optional | standard | 5 | 5 | — | — |
| 2017 | 5 | 4 | 2017 GMC Terrain SUV AWD | standard | standard | standard | standard | — | standard | optional | — | optional | optional | standard | — | — | — | standard | standard | 4 | 4 | — | — |
| 2016 | 5 | 4 | 2016 GMC Terrain SUV AWD | — | — | — | standard | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — |
| 2015 | 5 | 4 | 2015 GMC Terrain SUV AWD | — | — | — | standard | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — |
| 2014 | 5 | 4 | 2014 GMC Terrain SUV AWD | — | — | — | standard | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — |
| 2013 | 5 | 4 | 2013 GMC Terrain SUV AWD | — | — | — | standard | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — |
| 2012 | 5 | 4 | 2012 GMC Terrain SUV AWD | — | — | — | standard | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — |
| 2011 | 5 | 4 | 2011 GMC Terrain SUV AWD | — | — | — | standard | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — |
Model year reports
The 2026 GMC Terrain presents average reliability, but potential buyers must scrutinize its brake system.
The 2025 GMC Terrain presents significant reliability concerns, particularly with its powertrain.
The 2024 GMC Terrain presents a mixed reliability picture.
The 2023 GMC Terrain presents a mixed reliability picture.
The 2022 GMC Terrain offers solid safety scores and decent fuel economy, but its reliability is hampered by significant issues with the fuel propulsion system and engine.
The 2021 GMC Terrain earns an 'Average' reliability verdict, with a significant number of complaints focused on the **powertrain** and **electrical system**.
The 2020 GMC Terrain is rated below average for reliability, with significant concerns regarding the **service brakes** and **engine**.
The 2019 GMC Terrain earns a 'Below Average' reliability verdict, primarily due to significant safety concerns with its **service brakes** and **powertrain**.
The 2018 GMC Terrain presents a below-average reliability profile, primarily due to recurring issues with its **service brakes** and **powertrain**.
The 2017 GMC Terrain presents a below-average reliability outlook, primarily due to significant and recurring engine issues.
The 2016 GMC Terrain presents a below-average reliability outlook, primarily due to significant concerns with its windshield wiper system and engine performance.
The 2015 GMC Terrain is rated below average for reliability, with significant concerns around the **windshield wiper system** and **engine performance**, including stalling and oil consumption.
The 2014 GMC Terrain presents a below-average reliability outlook, primarily due to significant engine oil consumption issues that can lead to costly internal damage and timing chain problems.
The 2013 GMC Terrain presents a below-average reliability profile, primarily due to significant engine oil consumption issues that can lead to catastrophic failures.
The 2012 GMC Terrain presents a below-average reliability outlook, primarily due to significant engine issues like oil consumption leading to potential failures.
The 2011 GMC Terrain presents a below-average reliability profile, primarily due to significant concerns with engine stalling and power loss.
Scores are derived from NHTSA recalls and owner complaints, normalized by vehicle segment averages.
Carfocal currently has 16 published Terrain reports, covering 2011 through 2026. Compare the year-specific reports directly to see how reliability, recalls, ownership costs, and value change over time. The newest published verdict says: The 2026 GMC Terrain presents average reliability, but potential buyers must scrutinize its brake system.
Published year coverage: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026.
There is no single reliability answer for every GMC Terrain. Carfocal's published year reports show why the model year matters, with verdicts that include the 2026 gmc terrain presents average reliability, but potential buyers must scrutinize its brake system. and the 2026 gmc terrain's value hinges on its average reliability and the significant risk associated with potential brake system failures. Compare the report for the year you are considering before you make a decision.
16 published year-specific reports are available for comparison.
Carfocal answers common-problem questions in the year-specific reports. Published guides currently cover 2011 through 2026.
Problem patterns will populate as repair-prediction coverage expands.