2003 Toyota Corolla problems by component
720 owner complaints filed with NHTSA for the 2003 Toyota Corolla, grouped by the component owners reported. Each component links to a detailed breakdown with mileage, severity and owner reports.
| Component | Complaints | Share | Median mileage |
|---|---|---|---|
| Air Bags → | 332 | 46% | 120,000 mi |
| Engine and Engine Cooling → | 92 | 13% | 36,000 mi |
| Vehicle Speed Control → | 77 | 11% | 65,000 mi |
| Power Train → | 61 | 8% | 96,600 mi |
| Seat Belts → | 38 | 5% | 109,000 mi |
| Electrical System → | 34 | 5% | 108,010 mi |
| Structure → | 31 | 4% | 50,000 mi |
| Visibility → | 26 | 4% | 66,400 mi |
| Service Brakes, Hydraulic → | 23 | 3% | 38,000 mi |
| Engine → | 16 | 2% | 159,000 mi |
| Tires → | 13 | 2% | — |
| Suspension → | 10 | 1% | — |
| Electronic Stability Control (esc) | 9 | 1% | — |
| Exterior Lighting | 9 | 1% | — |
| Fuel System, Gasoline | 8 | 1% | — |
| Steering | 8 | 1% | — |
| Visibility/wiper | 7 | 1% | — |
| Wheels | 7 | 1% | — |
| Service Brakes | 6 | 1% | — |
| Fuel/propulsion System | 5 | 1% | — |
| Equipment | 4 | 1% | — |
| Latches/locks/linkages | 4 | 1% | — |
| Seats | 4 | 1% | — |
| Service Brakes, Air | 2 | 0% | — |
| Equipment Adaptive/mobility | 1 | 0% | — |
| Fuel System, Other | 1 | 0% | — |
| Parking Brake | 1 | 0% | — |
| Service Brakes, Electric | 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%.