2018 Hyundai Sonata problems by component
366 owner complaints filed with NHTSA for the 2018 Hyundai Sonata, 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 → | 206 | 56% | 20,000 mi |
| Electrical System → | 60 | 16% | 21,250 mi |
| Power Train → | 39 | 11% | 47,575 mi |
| Fuel/propulsion System → | 30 | 8% | — |
| Exterior Lighting → | 22 | 6% | — |
| Vehicle Speed Control → | 19 | 5% | 8,916 mi |
| Structure → | 15 | 4% | — |
| Engine and Engine Cooling → | 14 | 4% | 99,000 mi |
| Service Brakes → | 14 | 4% | — |
| Steering | 9 | 2% | — |
| Latches/locks/linkages | 8 | 2% | — |
| Seat Belts | 8 | 2% | — |
| Forward Collision Avoidance | 7 | 2% | — |
| Visibility/wiper | 5 | 1% | — |
| Air Bags | 4 | 1% | — |
| Suspension | 4 | 1% | — |
| Tires | 4 | 1% | — |
| Lane Departure | 3 | 1% | — |
| Service Brakes, Hydraulic | 3 | 1% | — |
| Electronic Stability Control (esc) | 2 | 1% | — |
| Fuel System, Gasoline | 2 | 1% | — |
| Seats | 2 | 1% | — |
| Back Over Prevention | 1 | 0% | — |
| Firerelated | 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%.