2021 Toyota Prius problems and complaints
Owners have filed 6 complaints with NHTSA about the 2021 Toyota Prius. The most-reported areas: Fuel/Propulsion System (2), Engine (2), Vehicle Speed Control (1).
Key takeaways
- 6 owner complaints on file with NHTSA.
- 1 involve a crash, 0 a fire, 0 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Fuel/Propulsion System | 2 | 33% |
| Engine | 2 | 33% |
| Vehicle Speed Control | 1 | 17% |
| Forward Collision Avoidance | 1 | 17% |
| Lane Departure | 1 | 17% |
| Electrical System | 1 | 17% |
| Service Brakes | 1 | 17% |
| Unknown Or Other | 1 | 17% |
| Wheels | 1 | 17% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2021 Toyota PRIUS 5 HB AWD | 5/5 | 4/5 | 5/5 | 4/5 |
| 2021 Toyota PRIUS 5 HB FWD | 5/5 | 4/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Fuel/Propulsion System - filed 2026-02-23
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
Vehicle Speed Control - filed 2024-09-18
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 opposite side of the roadway. The contact...
Forward Collision Avoidance,lane Departure - filed 2023-07-14
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 outside of its design parameters like this. To...
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More for the 2021 Toyota Prius
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.