Hyundai Ioniq — reliability by registration year
2017–2022 · 6 registration years · 39,437 first tests
Registration years
First-attempt MOT results for every Ioniq registration year with at least 500 first tests in 2025. Pass rates rise with newer cars, so read a year against its neighbours rather than against the top of the table.
| Year | First tests | First-attempt pass | Incl. PRS | Most common failure |
|---|---|---|---|---|
| 2022 | 4,798 | 83.6% | 89.8% | Visibility — Wipers (front) 28.4% |
| 4.5 pp worse than the years either side What failed 2022 Ioniqs most often: Visibility — Wipers (front) (28.4%) · Headlamp aim (11.3%) · Tread depth (front) (11.1%) | ||||
| 2021 | 8,605 | 88.1% | 91.2% | Tread depth (front) 15.5% |
| 2.6 pp better than the years either side What failed 2021 Ioniqs most often: Tread depth (front) (15.5%) · Tyres — Condition (rear) (13.2%) · Headlamp aim (10.8%) | ||||
| 2020 | 6,545 | 87.5% | 90.6% | Tread depth (front) 15.3% |
| 2019 | 7,918 | 85.9% | 88.6% | Tyres — Condition (front) 12.6% |
| 2018 | 6,908 | 84.4% | 87.9% | Rbt (sp) 11.4% |
| 2017 | 4,663 | 83.3% | 86.7% | Tread depth (front) 11.1% |