2021 Toyota Prius Report
Known issues, recalls, running costs, and what to check before you buy.

Overall Score
Key Takeaways
- Exceptional fuel economy (52 MPG combined) significantly reduces running costs.
- A strong overall safety rating (5 stars) provides peace of mind.
- Be aware of customer complaints related to the engine and service brakes.
- The hybrid powertrain is generally reliable, but specific issues have been reported.
2021 Toyota Prius
The 2021 Toyota Prius remains a benchmark for fuel efficiency in the hybrid car segment. It delivers an impressive combined EPA rating of 52 MPG, making it a cost-effective choice for daily commuting. While Toyota's hybrid technology is generally robust, this model year has seen a notable number of customer complaints, particularly concerning the engine, wheels, and fuel/propulsion system. Safety ratings are strong, with an overall 5-star NHTSA score, but specific complaints about unintended acceleration and brake failures warrant careful consideration.
Critical Failure Risk
Various engine-related issues, potentially including performance degradation or unusual noises.
Early detection can help you avoid a $150-$800 repair.
Safety & Bulletins
Owner Complaints
Performance & Efficiency
- Horsepower
- 121HP
- Torque
- 105 lb–ft @ 3600 rpmLB-FT
Reliability
Practicality
The score is supported by solid day-to-day usability signals.
Who This Car Is For
Best for
Commuters prioritizing maximum fuel efficiency and low running costs.
+2 more buyer-fit notes in the full report
Avoid if
Drivers seeking spirited performance or engaging driving dynamics.
+2 more buyer-fit warnings in the full report
2021 Toyota Prius Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2021 Toyota Prius.
Vehicle Specs
- Fuel Type
- Regular
- Seating Capacity
- 5
- Horsepower
- 121 hp
- Torque
- 105 lb-ft @ 3600 rpm
- Transmission
- Continuously Variable Transmission (CVT)
- Drivetrain
- Front-Wheel Drive
- Body Style
- Hatchback
- MSRP Range
- $24,525 - $32,650
- EPA Combined MPG
- 52
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Most Common Issues
1. ENGINE
Most reportedUsage: 2 reports
2. WHEELS
Usage: 1 reports
First Service Interval
- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Motor Oil, Oil Filter) - Tire Rotation
Est. shop cost: $70 - $150
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FAQ
Is the 2021 Toyota Prius reliable?
The CarFocal Reliability Score for the 2021 Toyota Prius is 9.4/10. Reliability score is 9.4/10. NHTSA recalls: 0. Owner complaints: 10.
How practical is the 2021 Toyota Prius for daily use?
Practicality score is 8.0/10. The score is supported by solid day-to-day usability signals. EPA combined economy is 52 MPG. Seating capacity is 5. 4 passenger doors are listed. Boot capacity is 457 litres.
What is the overall score for the 2021 Toyota Prius?
The CarFocal Overall Score for the 2021 Toyota Prius is 8.9/10. Overall score is 8.9/10 (Strong). Confidence 85%. Maintenance 7.3/10. Tuning 2.0/10. Practicality 8.0/10.
What does it cost to own and maintain a 2021 Toyota Prius?
Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Motor Oil, Oil Filter) - Tire Rotation at 5,000 miles. Estimated first-year maintenance: $1,000 - $1,500. Repair prediction highlight: Engine Mounts (typical at 80,000 miles, estimated cost Min: $400 • Max: $700).
What is the MSRP range for the 2021 Toyota Prius?
MSRP range is $24,525 - $32,650.
What engine is in the 2021 Toyota Prius?
Engine specs list Inline-4 • 4 • 1.8. Output is 121 hp • 105 lb-ft @ 3600 rpm.
What transmission does the 2021 Toyota Prius use?
According to CarFocal's specs for the 2021 Toyota Prius, transmission is Continuously Variable Transmission (CVT). The paired drivetrain is Front-Wheel Drive.
What is the combined EPA MPG for the 2021 Toyota Prius?
EPA combined estimate is 52 MPG.
What driver assistance and safety features are available on the 2021 Toyota Prius?
12 standard driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.
What is the fuel economy range for the 2021 Toyota Prius?
According to CarFocal's specs for the 2021 Toyota Prius, fuel economy range is 52-56 mpg combined.
How many people fit in a 2021 Toyota Prius?
According to CarFocal's specs for the 2021 Toyota Prius, seating capacity is 5.
What body style is the 2021 Toyota Prius?
According to CarFocal's specs for the 2021 Toyota Prius, body style is hatchback.
What drivetrain does the 2021 Toyota Prius use?
According to CarFocal's specs for the 2021 Toyota Prius, drivetrain is Front-Wheel Drive. Transmission is Continuously Variable Transmission (CVT).
What are the NHTSA safety ratings for the 2021 Toyota Prius?
NHTSA ratings: Overall 5/5 • Frontal 4/5 • Side 5/5 • Rollover 4/5.
Is the 2021 Toyota Prius good for tuning?
Tuning potential is rated 2/10. This guide details tuning and modification options for the 2021 Toyota Prius (US market).
Should I tune the 2021 Toyota Prius?
The Toyota Prius is a hybrid vehicle focused on fuel efficiency, not performance. Its engine is not designed for significant power gains through aftermarket tuning, and there is limited aftermarket support for performance modifications. While some aesthetic or suspension modifications are possible, the core engine tunability is very low.
What are the most common engine problems on the 2021 Toyota Prius?
Top complaint category: engine (2 reports, 20% of complaints).
Should buyers consider alternatives to the 2021 Toyota Prius?
Alternatives listed in this guide: 2021 Honda Insight and 2021 Hyundai Ioniq.