2015 Kia Optima problems by component
1,003 owner complaints filed with NHTSA for the 2015 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 |
|---|---|---|---|
| Engine → | 618 | 62% | 88,000 mi |
| Electrical System → | 135 | 13% | 84,000 mi |
| Structure → | 76 | 8% | 56,500 mi |
| Steering → | 68 | 7% | 44,500 mi |
| Power Train → | 49 | 5% | 82,794 mi |
| Service Brakes → | 49 | 5% | 35,000 mi |
| Fuel/propulsion System → | 44 | 4% | 90,000 mi |
| Service Brakes, Hydraulic → | 40 | 4% | 108,000 mi |
| Vehicle Speed Control → | 35 | 3% | 61,000 mi |
| Engine and Engine Cooling → | 30 | 3% | 99,000 mi |
| Air Bags → | 26 | 3% | 66,000 mi |
| Exterior Lighting → | 23 | 2% | — |
| Electronic Stability Control (esc) → | 10 | 1% | — |
| Fuel System, Gasoline → | 10 | 1% | — |
| Forward Collision Avoidance | 9 | 1% | — |
| Suspension | 6 | 1% | — |
| Visibility/wiper | 6 | 1% | — |
| Wheels | 5 | 0% | — |
| Lane Departure | 3 | 0% | — |
| Tires | 3 | 0% | — |
| Visibility | 3 | 0% | — |
| Seat Belts | 2 | 0% | — |
| Seats | 2 | 0% | — |
| Equipment | 1 | 0% | — |
| Firerelated | 1 | 0% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.