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GMC Terrain Reliability by Year

Every Terrain model year from 2010 to 2025, scored on reported failures weighted against how many were sold — and ranked against every other Compact SUV of the same year.

The short answer

Best model year
2016
#3 of 21 that year
Year to avoid
2011
#15 of 19 that year
Latest scored
2025
#10 of 42

Across 16 scored model years the Terrain needs fixing less often than its class, and repairs cost about what you would expect. The spread between years is what matters: 2016 is its strongest, 2011 its weakest.

Every model year, scored

Longer bar is better. Rank is against every Compact SUV sold that same model year.

YearRelative standingClass rankPctl
2010#15 /2130th
2011#15 /1922thAvoid
2012#9 /1853th
2013#10 /1847th
2014#10 /2155th
2015#11 /2355th
2016#3 /2190thBest year
2017#12 /2452th
2018#12 /2758th
2019#21 /3133th
2020#24 /3532th
2021#15 /3559th
2022#20 /3747th
2023#15 /4266th
2024#29 /4435th
2025#10 /4278th

The line has moved around across 16 model years, with its weakest stretch in 2010–2011. The recent trend is upward. This 2025 car falls in a middling stretch.

What tends to break

All 12 systems, measured against the class average for each model year.

Every Terrain model year is scored across 12 separate systems — engine, transmission, brakes, electrical, steering and suspension, structure, interior, and five more. Each system is compared against how often that same system fails on the average Compact SUV of the same year, so a common failure is judged against how common it is everywhere else.

Across the last three model years (2023–2025), the trouble concentrates in one place: powertrain. That system draws issue reports more often than the same system on the average Compact SUV of its year — which changes what you should be inspecting before you buy.

Full Dashboard Preview

Real charts, sample vehicle. Open the lookup to see these for your Terrain.

Reliability Matrix Sample Chart

2018 Mid-Size SUVs

Your Terrain is plotted against 42 rivals from 2025.

Look up your Terrain →
better than classtypicalworsebubble = units sold

System Breakdown Sample Chart

2018 Mitsubishi Outlander

Your Terrain is scored the same way, for every model year.

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below class averageabove class average

Common questions

What is the best year for a used GMC Terrain?

2016 is the strongest Terrain model year on record, ranking #3 of 21 Compact SUVs that year.

Which GMC Terrain years should I avoid?

2011 is the weakest year in the model's history, ranking #15 of 19.

Is the latest Terrain reliable?

The 2025 Terrain ranks #10 of 42 Compact SUVs — the upper quarter of its class.

Where does this data come from?

Failure reports filed with NHTSA — submitted by vehicle owners and repair shops alike — weighted against US sales volumes so a high-volume model is not penalised for selling well, then benchmarked within segment and model year.

See the full picture for your Terrain

All 12 systems scored, the whole class plotted, and a downloadable Full Model Report for any year — 6,000+ vehicles in the dashboard.

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How this was built. Scores derive from failure reports filed with NHTSA — submitted by vehicle owners and repair shops alike — weighted against US sales volumes and benchmarked within segment and model year. We measure two separate things: Fix Frequency — how often a vehicle needs fixing — and Fix Severity — how costly those fixes are. These figures describe a model line, not the specific vehicle in front of you; trim, mileage and service history still decide an individual car.