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Kia NIRO Reliability by Year

Every NIRO model year from 2017 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
2021
#13 of 35 that year
Year to avoid
2023
#31 of 42 that year
Latest scored
2025
#30 of 42

Across 9 scored model years the NIRO needs fixing more often than its class, though repairs are cheaper than average. The spread between years is what matters: 2021 is its strongest, 2023 its weakest.

Every model year, scored

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

YearRelative standingClass rankPctl
2017#17 /2430th
2018#20 /2727th
2019#30 /313th
2020#32 /359th
2021#13 /3565thBest year
2022#31 /3717th
2023#31 /4227thAvoid
2024#30 /4433th
2025#30 /4229th

Across all 9 model years on record, the line has held a weak position in its class. The recent trend is upward.

What tends to break

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

Every NIRO 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: interior & safety. 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 NIRO.

Reliability Matrix Sample Chart

2018 Mid-Size SUVs

Your NIRO is plotted against 42 rivals from 2025.

Look up your NIRO →
better than classtypicalworsebubble = units sold

System Breakdown Sample Chart

2018 Mitsubishi Outlander

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

Look up your NIRO →
below class averageabove class average

Common questions

What is the best year for a used Kia NIRO?

2021 is the strongest NIRO model year on record, ranking #13 of 35 Compact SUVs that year.

Which Kia NIRO years should I avoid?

2023 is the weakest year in the model's history, ranking #31 of 42.

Is the latest NIRO reliable?

The 2025 NIRO ranks #30 of 42 Compact SUVs — the lower half 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 NIRO

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.