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2021 Toyota Prius Report

Known issues, recalls, running costs, and what to check before you buy.

Updated May 30, 2026·Ryan Davis
2021 Toyota Prius Report

Overall Score

8.9/ 10
Our Verdict
Recommended

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.
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OverviewWho This Car Is ForReliability & ProblemsVehicle SpecsUnlock Full ReportFAQ
Overview

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.

Open Maintenance Analysis →

Safety & Bulletins

Open Recalls0
Service Bulletins0
Full Recall History →

Owner Complaints

10
Engine2
Detailed Issue Breakdown →

Performance & Efficiency

Horsepower
121HP
Torque
105 lb–ft @ 3600 rpmLB-FT
Fuel Efficiency
Combined
52
MPG
City
54
MPG
Highway
50
MPG
Full Vehicle Specifications ↓

Reliability

9.4/ 10

Practicality

8.0/ 10

The score is supported by solid day-to-day usability signals.

Buyer Fit

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.

  • Recall TimelineOfficial safety notices
  • Owner ComplaintsReal driver reports
  • Failure AnalysisKnown part defects
Specs

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 reported

Usage: 2 reports

2. WHEELS

Usage: 1 reports

See all common issues in the maintenance guide

First Service Interval

- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Motor Oil, Oil Filter) - Tire Rotation

Est. shop cost: $70 - $150

5,000 mi

Unlock the full maintenance guide for every scheduled service interval and cost forecast.

Full pre-purchase inspection checklist
Complete maintenance schedule (5 service intervals)
Repair forecasts with mileage and cost context
Full buyer-fit guidance and who should avoid it
Full specs and trim-level context
Full safety recall details
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FAQ

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.

Start Here

Maintenance guide

Costs + intervals

Recall report

Campaigns + remedy notes

Owner complaints

Issue volume + categories

Tuning guide

Potential + upgrade path

In this guide

  1. 01Overview
  2. 02Who This Car Is For
  3. 03Reliability & Problems
  4. 04Vehicle Specs
  5. 05Unlock Full Report
  6. 06FAQ

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