2009 Toyota Prius problems by component
502 owner complaints filed with NHTSA for the 2009 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 |
|---|---|---|---|
| Exterior Lighting → | 111 | 22% | 80,000 mi |
| Service Brakes, Hydraulic → | 91 | 18% | 13,250 mi |
| Vehicle Speed Control → | 71 | 14% | 10,500 mi |
| Service Brakes → | 63 | 13% | 131,000 mi |
| Electrical System → | 60 | 12% | 89,761 mi |
| Service Brakes, Electric → | 44 | 9% | 10,500 mi |
| Power Train → | 22 | 4% | 21,836 mi |
| Engine → | 19 | 4% | 80,500 mi |
| Structure → | 19 | 4% | 68,440 mi |
| Air Bags → | 17 | 3% | 52,000 mi |
| Traction Control System → | 15 | 3% | 16,500 mi |
| Fuel System, Gasoline → | 14 | 3% | — |
| Steering → | 13 | 3% | 74,720 mi |
| Electronic Stability Control (esc) → | 12 | 2% | 19,000 mi |
| Fuel/propulsion System | 8 | 2% | — |
| Engine and Engine Cooling | 7 | 1% | — |
| Forward Collision Avoidance | 5 | 1% | — |
| Suspension | 5 | 1% | — |
| Equipment Adaptive/mobility | 4 | 1% | — |
| Equipment | 3 | 1% | — |
| Fuel System, Other | 3 | 1% | — |
| Seats | 2 | 0% | — |
| Visibility/wiper | 2 | 0% | — |
| Seat Belts | 1 | 0% | — |
| Service Brakes, Air | 1 | 0% | — |
| Tires | 1 | 0% | — |
| Wheels | 1 | 0% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.