2004 Kia Optima problems by component
225 owner complaints filed with NHTSA for the 2004 Kia Optima, grouped by the component owners reported. Each component links to a detailed breakdown with mileage, severity and owner reports.
| Component | Complaints | Share | Median mileage |
|---|---|---|---|
| Latches/locks/linkages → | 81 | 36% | 93,700 mi |
| Electrical System → | 45 | 20% | 87,000 mi |
| Structure → | 42 | 19% | 103,900 mi |
| Air Bags → | 26 | 12% | 58,000 mi |
| Suspension → | 19 | 8% | 71,285 mi |
| Engine and Engine Cooling → | 11 | 5% | — |
| Fuel System, Gasoline | 9 | 4% | — |
| Power Train | 8 | 4% | — |
| Steering | 7 | 3% | — |
| Seat Belts | 6 | 3% | — |
| Exterior Lighting | 5 | 2% | — |
| Service Brakes, Hydraulic | 5 | 2% | — |
| Vehicle Speed Control | 5 | 2% | — |
| Wheels | 4 | 2% | — |
| Engine | 3 | 1% | — |
| Equipment | 3 | 1% | — |
| Electronic Stability Control (esc) | 2 | 1% | — |
| Equipment Adaptive/mobility | 2 | 1% | — |
| Service Brakes | 2 | 1% | — |
| Tires | 2 | 1% | — |
| Fuel/propulsion System | 1 | 0% | — |
| Lane Departure | 1 | 0% | — |
| Seats | 1 | 0% | — |
| Visibility | 1 | 0% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.