Half of all complaints arrive by 3 years of age, so 58.6% land after the 3-year basic warranty ends. The system owners report most is Fuel/propulsion System, with 10 complaints, typically at 2.9 years.
Toyota Mirai years to avoid — and the best ones
| Model year | Per run | Complaints | Runs | Enough history? |
|---|---|---|---|---|
| 2023 | 6 | 4 | too new | |
| 2022 | 10 | 5 | too new | |
| 2019 | 4 | 3 | yes |
When it starts to break
| Age at failure | Complaints | Running total | Warranty |
|---|---|---|---|
| 0 years | 13.8% | covered | |
| 1 year | 27.6% | covered | |
| 2 years | 41.4% | covered | |
| 3 years | 72.4% | you pay | |
| 4 years | 86.2% | you pay | |
| 5 years | 89.7% | you pay | |
| 6 years | 96.6% | you pay | |
| 8 years | 100% | you pay |
Basic warranty on this car is 3 years / 36,000 miles. Only 41.4% of reported failures happen inside it — the remaining 58.6% come out of the owner's pocket. Powertrain cover (5 years / 60,000 miles) reaches further, but it only covers the engine and transmission, which account for about 10% of the complaints here.
What actually fails — and at what age
On the Toyota Mirai, the early trouble is Fuel/propulsion System and Forward Collision Avoidance — reported at around 2.9 years, so a car still under warranty is the one to check for it. What waits further out is Service Brakes at 5 years — past every basic warranty, and the bill lands on whoever owns the car then.
| System | Complaints | Typical age | Crash | Fire |
|---|---|---|---|---|
| Fuel/propulsion System | 2.9 yrs | — | — | |
| Forward Collision Avoidance | 2.7 yrs | 2 | — | |
| Vehicle Speed Control | 3 yrs | 2 | — | |
| Electrical System | 3.3 yrs | — | — | |
| Service Brakes | 5 yrs | 1 | — | |
| Unknown Or Other | 5 yrs | — | — | |
| Engine | 3.7 yrs | — | — | |
| Air Bags | 3 yrs | — | — |
What else in this class
6 models share the Mirai's vehicle class. Per production run, the Toyota Corolla draws 5.16, the Lexus IS 1.31 and the BMW M3 1.49, against 1.45 for the Mirai.
| Same class as the Mirai | Complaints on record | Recall campaigns | Years built |
|---|---|---|---|
| Toyota Corolla | 219 | 1981–2026 | |
| Lexus IS | 118 | 2001–2026 | |
| BMW M3 | 78 | 1988–2026 | |
| Acura TLX | 41 | 2015–2026 | |
| Ford Focus | 138 | 2000–2026 | |
| Subaru WRX | 17 | 2015–2026 |
The table shows totals on record; the rates per production run are in the sentence above.
Good year or bad year — the VIN settles it.
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Frequently asked questions
Is the Toyota Mirai reliable?
By complaints per production run it is better than typical: 1.45 against 3.73 for the average car, and in the middle of its class rivals.
When do Mirai problems usually start?
Half of all complaints arrive by 3 years of age. The most reported system is Fuel/propulsion System, typically at 2.9 years, followed by Forward Collision Avoidance.
Will the warranty cover Mirai problems?
Mostly not: basic cover is 3 years / 36,000 miles, and only 41.4% of reported failures fall inside it. Powertrain cover lasts longer, but engine and transmission make up about 10% of the complaints here.
Is the Mirai more reliable than the Toyota Corolla?
Yes: 1.45 complaints per production run for the Mirai against 5.16 for the Toyota Corolla.
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