Reliability Report · Multi-Source Data

Hyundai Ioniq Reliability

The Hyundai Ioniq (current generation) scores 78/100 on our composite reliability index — good territory — drawn from DVSA, NHTSA data.

Composite Score
78
/ 100
Good
Sources: DVSA · NHTSA · latest 2026
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Buying a Hyundai Ioniq? Check its VIN history first

Reliability data covers the model. A VIN history report covers the exact Hyundai Ioniq you're looking at — accident and write-off records, mileage rollback, outstanding finance and theft checks.

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Reliability by Source

Each independent organization measures reliability differently. TÜV reports inspection defect rates by age band. ADAC reports pan-European breakdowns per 1,000 vehicles. NHTSA aggregates US consumer complaints. DVSA MOT data is the UK fleet's annual safety inspection — every car 3+ years old. Lower variance across sources = higher confidence in the composite.

NHTSA (US Complaints)
Model years 2015–2021 · 2026 report · n=70
70 complaints across 3 sampled year(s); resolved model="IONIQ HYBRID"
View source ↗
75
/ 100
DVSA MOT (UK Inspections)
Model years 2015–2021 · 2024 report · n=65061
65,061 UK MOT tests · overall 9.6% fail rate vs UK fleet baseline
View source ↗
80
/ 100
DVSA MOT (UK Inspections)
Model years 2014–2020 · 2023 report · n=30168
30,168 UK MOT tests · overall 9.8% fail rate vs UK fleet baseline
View source ↗
77
/ 100

UK MOT Reliability Detail

Based on 65,061 MOT tests in the UK during the 2024 reporting period. Score for each age band reflects this model's fail rate vs the UK-fleet baseline fail rate at the same age — a generation-aware metric.

Age 35 yrs
78
8.7% fail vs 10.9% fleet
44,926 tests
Age 69 yrs
86
11.6% fail vs 19.2% fleet
20,135 tests

Most Common MOT Failure Categories

#1
Wipers
3,498
34.8%
#2
Condition
2,794
27.8%
#3
Tread depth
1,835
18.2%
#4
Windscreen
1,062
10.6%
#5
Service brake performance
875
8.7%

Categories ranked across all MOT tests of this model in the UK during the 2024 period. "Condition" covers cosmetic / wear issues; suspension and braking dominate the rest.

Compare Against Alternatives

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