2021 Toyota PRIUS PRIME problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
10 owner complaints analyzed
0 distinct recall campaigns
34,000 mi median reported failure mileage
Scope: 2021 model year. Data snapshot: . 5 complaints include usable failure mileage.
Most common problems
Electrical System is the most frequently named component, appearing in 3 of 10 complaints (30.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 2 | 20.0% |
| Braking behavior | 2 | 20.0% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System | 3 |
| Fuel/Propulsion System | 2 |
| Power Train | 2 |
| Service Brakes | 2 |
| Air Bags | 1 |
| Back Over Prevention | 1 |
| Electrical System:Instrument Panel:Speedometer/Odometer | 1 |
| Engine | 1 |
Electrical System: 3; Fuel/Propulsion System: 2; Power Train: 2; Service Brakes: 2; Air Bags: 1; Back Over Prevention: 1; Electrical System:Instrument Panel:Speedometer/Odometer: 1; Engine: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 2 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 1 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 1 |
Under 25,000: 1; 25,000 to 49,999: 2; 50,000 to 74,999: 0; 75,000 to 99,999: 1; 100,000 to 149,999: 0; 150,000 and above: 1
25,000 to 49,999 miles has the most reports with usable mileage (2). 5 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 1 |
2021: 1; 2022: 2; 2023: 1; 2024: 2; 2025: 3; 2026: 1
Pattern summary
Electrical System leads the component reports. Transmission and shifting appears in 2 complaint narratives. Braking behavior appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11545583 · 2023-09-20 (September 20, 2023)
The contact owns a 2021 Toyota Prius Prime. The contact stated that after the vehicle was shifted into park, the key was removed and the contact stepped away from the vehicle, when the vehicle inadvertently started to roll away. As a result, the vehicle rolled into the neighbor’s driveway and grazed another vehicle then stopped. Additionally, the contact stated that while the vehicle was on the charger port, the vehicle failed to start. The dealer was notified of the failure and the contact was advised to take the vehicle in to be diagnosed. Th…
Owner-reported narrative. 80,000 miles reported. Look up ODI 11545583 at NHTSA ↗
Owner report 11688961 · 2025-09-22 (September 22, 2025)
The contact owns a 2021 Toyota Prius Prime. The contact stated that while shifted into reverse(R), the rearview camera intermittently went black. No warning light was illuminated. In addition, the contact stated that while driving at various speeds, the rearview camera intermittently went black. The local dealer was contacted. The vehicle was not diagnosed or repaired. Upon further investigation, the contact related the failure to an unknown NHTSA Campaign; however, the VIN was not under recall. The manufacturer was made aware of the failure. T…
Owner-reported narrative. 27,696 miles reported. Look up ODI 11688961 at NHTSA ↗
Owner report 11492523 · 2022-11-06 (November 6, 2022)
Brakes of my Toyota Pirius Prime did not work after I was hit on my right side. Brakes completlety was out. Also I was not able to run the car. The cars brakes should work even I got an accident to precent some further damage to other cars.
Owner-reported narrative. Look up ODI 11492523 at NHTSA ↗
Owner report 11604557 · 2024-07-25 (July 25, 2024)
The contact owns a 2021 Toyota Prius Prime. The contact stated while driving 45–50 MPH and approaching a stop sign, the brake pedal was depressed but the vehicle failed to respond. The driver continued to pump the brake pedal, but the vehicle failed to respond and depressed to the floorboard. The vehicle accelerated, veered across the road, jumped the curb, and stopped. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, and an engineer determin…
Owner-reported narrative. 34,000 miles reported. Look up ODI 11604557 at NHTSA ↗