AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2021 Toyota Prius
Overall rating NHTSA-grounded
Above average
Estimated 5-year repair + maintenance cost: $3,200–$5,000
The 2021 Toyota Prius has an above-average reliability rating with minimal major complaint and recall data, indicating it is a dependable option with low repair frequency.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| fuel system | 30,000–60,000 miles | $300–$600 | occasional |
| engine | 60,000–90,000 miles | $500–$1,000 | rare |
| brake system | 60,000–90,000 miles | $400–$800 | rare |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes
- Brake pad replacement
- Battery maintenance
- Tire rotation and alignment
- Air filter replacement
- Coolant system checks
- Transmission fluid changes
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Unusual engine noises
- Fuel efficiency drops
- Braking feels spongy
- Warning lights on dashboard
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.