AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2021 Toyota Mirai
Overall rating NHTSA-grounded
Above average
Estimated 5-year repair + maintenance cost: $2,000–$4,000
The 2021 Toyota MIRAI has a strong reliability profile with an above-average rating due to minimal complaints and a single recall related to electronic stability control. This suggests robust engineering and fewer significant issues.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| ESC module | 20,000–40,000 miles | $300–$500 | occasional |
| Fuel cell system | 40,000–60,000 miles | $1,000–$1,500 | rare |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Routine oil changes
- Brake fluid replacement
- Coolant system flush
- Cabin air filter change
- Fuel cell inspections
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Check engine light
- Unusual ESC warnings
- Fuel cell low performance
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.