2012 Toyota Prius problems by component
421 owner complaints filed with NHTSA for the 2012 Toyota Prius, grouped by the component owners reported. Each component links to a detailed breakdown with mileage, severity and owner reports.
| Component | Complaints | Share | Median mileage |
|---|---|---|---|
| Service Brakes → | 182 | 43% | 78,000 mi |
| Electrical System → | 52 | 12% | 47,500 mi |
| Exterior Lighting → | 36 | 9% | 80,000 mi |
| Engine → | 31 | 7% | 77,000 mi |
| Visibility/wiper → | 28 | 7% | 7,366 mi |
| Air Bags → | 27 | 6% | 28,500 mi |
| Structure → | 23 | 5% | 24,000 mi |
| Power Train → | 21 | 5% | 25,300 mi |
| Steering → | 13 | 3% | — |
| Vehicle Speed Control → | 13 | 3% | 21,000 mi |
| Service Brakes, Hydraulic → | 12 | 3% | 132,500 mi |
| Seat Belts → | 11 | 3% | — |
| Fuel/propulsion System | 9 | 2% | — |
| Suspension | 8 | 2% | — |
| Electronic Stability Control (esc) | 7 | 2% | — |
| Hybrid Propulsion System | 6 | 1% | — |
| Seats | 6 | 1% | — |
| Wheels | 5 | 1% | — |
| Fuel System, Other | 4 | 1% | — |
| Service Brakes, Air | 4 | 1% | — |
| Equipment Adaptive/mobility | 3 | 1% | — |
| Forward Collision Avoidance | 3 | 1% | — |
| Visibility | 2 | 0% | — |
| Engine and Engine Cooling | 1 | 0% | — |
| Equipment | 1 | 0% | — |
| Insert, Padding | 1 | 0% | — |
| Lane Departure | 1 | 0% | — |
| Tires | 1 | 0% | — |
| Traction Control System | 1 | 0% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.