Various engine-related issues, potentially including performance degradation or unusual noises. Estimated repair cost: $200 - $1500+.

Complaints suggest potential issues with brake responsiveness or performance, including instances of brake failure. Estimated repair cost: $150 - $800+.

Fuel/Propulsion System Concerns

Issues related to the fuel delivery or hybrid propulsion system, potentially affecting overall vehicle operation. Estimated repair cost: $300 - $2000+.

Wheel and Tire Issues

Reports include tire failures at very low mileage. Estimated repair cost: $100 - $1000+.

CARFOCALvehicle research

2021 Toyota Prius Maintenance guide

Name: Maintenance dataset for 2021 Toyota Prius
Creator: Carfocal

v1.0Updated May 30, 2026Daniel Wilson4 Sources Analyzed

MAINTENANCE SUMMARY

The 2021 Toyota Prius, despite an 'Excellent' public reliability verdict, presents specific maintenance considerations. Owners should be particularly attentive to the engine and service brakes, which are cited in customer complaints.

View Critical Issue: Service Brake Issues

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Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

12 TSBs | 0 Recalls

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Key Takeaways

Prioritize inspections for engine and service brake systems due to reported complaints.
While no recalls are noted, be aware of potential issues with unintended acceleration and brake system performance.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance