2018 Toyota Sienna problems by component
69 owner complaints filed with NHTSA for the 2018 Toyota Sienna, grouped by the component owners reported. Each component links to a detailed breakdown with mileage, severity and owner reports.
| Component | Complaints | Share | Median mileage |
|---|---|---|---|
| Power Train → | 18 | 26% | — |
| Fuel/propulsion System | 9 | 13% | — |
| Electrical System | 6 | 9% | — |
| Air Bags | 5 | 7% | — |
| Engine | 5 | 7% | — |
| Structure | 5 | 7% | — |
| Vehicle Speed Control | 5 | 7% | — |
| Fuel System, Gasoline | 4 | 6% | — |
| Seats | 4 | 6% | — |
| Service Brakes | 2 | 3% | — |
| Child Seat | 1 | 1% | — |
| Equipment Adaptive/mobility | 1 | 1% | — |
| Exterior Lighting | 1 | 1% | — |
| Interior Lighting | 1 | 1% | — |
| Suspension | 1 | 1% | — |
| Tires | 1 | 1% | — |
| Visibility | 1 | 1% | — |
| Visibility/wiper | 1 | 1% | — |
| Wheels | 1 | 1% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.