Severe Issues

2021 TOYOTA PRIUS Problems

Real NHTSA owner complaints for the 2021 Toyota Prius. This model year has 6 NHTSA complaints β€” top issue: Fuel/Propulsion System.

6
Complaints
1
Crashes
β€”
Fires
β€”
Injuries
β€”
Deaths
β€”
Recalls

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This page shows the model year's reputation. The VIN tells you about the specific car β€” accidents, title issues, odometer rollbacks, and open recalls.

Worst 2021 Toyota Prius Problems

Top 3 most-reported issues with average mileage at failure.

#1
2
complaints

Fuel/Propulsion System

#2
2
complaints

Engine Problems

Crash-related:1
#3
1
complaints

Unintended Acceleration

Considering a 2021 Toyota Prius?

This page shows the model year's reputation. The VIN tells you about this specific car β€” accidents, title issues, odometer fraud. Full report just $4.99 (vs. Carfax $44.99).

All Problems by Category

Every NHTSA complaint category for the 2021 Toyota Prius. A single complaint may appear in multiple categories.

ComponentComplaintsCrashesFiresAvg MileageVolume
Fuel/Propulsion System2β€”β€”β€”
Engine Problems21β€”β€”
Unintended Acceleration1β€”β€”β€”
Forward Collision Avoidance: AEB1β€”β€”β€”
Lane Departure1β€”β€”β€”
Electrical Faults11β€”β€”
Brake System11β€”β€”
Uncategorized Issues1β€”β€”β€”
Wheel Issues1β€”β€”β€”

Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.

Search Owner Complaints

Read what owners actually reported to NHTSA for the 2021 Toyota Prius. Type a keyword (e.g. β€œtransmission”, β€œstalling”, β€œbrakes”) to filter.

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Showing 6 most recent complaints

Fuel/Propulsion SystemFeb 23, 2026

When i am going down it's charging when the charge reaches 6 from 8 the engine starts working and stop changing at that point and the power continues comes from engine only without the hybrid battery and there are no codes

Unintended AccelerationSep 18, 2024

The contact owns a 2021 Toyota Prius. The contact stated while driving approximately 35 - 45 MPH, the vehicle independently accelerated. The brake pedal was depressed but failed to stop the vehicle immediately. The contact swerved around the vehicle in front and ended up on the o…

Forward Collision Avoidance: AEBJul 14, 2023

The Lane keeping assist used in radar cruise control mode during some drive cycles will attempt to maintain the vehicle position to the far extreme of the lane and in some cases actively veer out of the lane. My safety ant others can be put at risk when the vehicle behaves outsid…

Electrical FaultsπŸ’₯ CrashJun 13, 2023

The car accelerated without my foot on the accelerator, brake did not respond, and I had to drive through grass and a rock-filled ditch until after about 10 seconds the car returned to my control.

Uncategorized IssuesMay 11, 2021

CARBON MONOXIDE SEEPS INTO THE PASSENGER CAR BUT DILLER CANNOT FIND IT AND DID NOT HAVE TOOLS TO DETECT CO LEVEL IN THE CAR. I CAN'T USE THIS CAR BECAUSE WAS POISONED MANY TIMES AND AFTER A SECOND CHECK-UP, THE LEVEL OF CO BECOMES HIGHER SO I CAN'T DRIVE THE CAR WITHOUT POISONING…

Wheel IssuesMar 25, 2021

WHILE DRIVING ON THE I 4 WE HAD A BLOWOUT ON THE REAR PASSENGER TIRE. THE CAR HAD LESS THAN 200 MILES ON IT SO IT WAS BRAND NEW. THE DEALERSHIP FOUND OBJECT IN THE TIRE THAT COULD HAVE CAUSE THE PROBLEM THE ONLY CONCLUSION I COULD COME TO IS THAT THIS TIRE WAS DEFECTIVE. THE DEAL…

Source: NHTSA Complaints Database. Real owner reports for the 2021 Toyota Prius.

Recalls for 2021 Toyota Prius

0 campaigns

NHTSA recall campaigns for the 2021 Toyota Prius. Recalls are free to fix at any authorized dealer. Run a VIN check below to see if your specific vehicle has open recalls.

No recall campaigns found for this model year in the current data. Check nhtsa.gov/recalls directly for the latest information.

2021 Toyota Prius β€” FAQ

Answers based on real NHTSA complaint and recall data for this specific model year.

Is the 2021 Toyota Prius reliable?β–Ύ

Severe Issues. The 2021 Toyota Prius has 6 NHTSA owner complaints, 1 crash-related, and 0 recall campaigns. The most reported issue is Fuel/Propulsion System (2 complaints). Source: NHTSA via VinSpector AI.

What are the most common problems with the 2021 Toyota Prius?β–Ύ

#1: Fuel/Propulsion System (2 complaints). #2: Engine Problems (2 complaints). #3: Unintended Acceleration (1 complaints)

At what mileage do problems start on the 2021 Toyota Prius?β–Ύ

Mileage data is not available or insufficient for this model year.

How safe is the 2021 Toyota Prius?β–Ύ

The 2021 Toyota Prius has 1 crash-related complaints and 0 fire reports out of 6 total NHTSA complaints. For NCAP lab crash test star ratings, visit nhtsa.gov/ratings.

Does the 2021 Toyota Prius have any recalls?β–Ύ

No NHTSA recall campaigns were found for the 2021 Toyota Prius in the current data. Always verify with a VIN check as recalls can be added at any time.

Should I buy a 2021 Toyota Prius?β–Ύ

The 2021 Toyota Prius has severe issues β€” review the top problems before buying. Pay particular attention to Fuel/Propulsion System issues. Always run a VIN check on the specific car you're considering to check for accident history, open recalls, and title brands.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.

Wider context: See the full Toyota Prius reliability report with year-by-year comparison.

Check Your Specific 2021 Toyota Prius

Real owner complaints tell you about the model. The VIN tells you about your specific car β€” accidents, title issues, odometer fraud. Full report just $4.99.