2021 Toyota 4RUNNER problems by component
34 owner complaints filed with NHTSA for the 2021 Toyota 4RUNNER, grouped by the component owners reported. Each component links to a detailed breakdown with mileage, severity and owner reports.
| Component | Complaints | Share | Median mileage |
|---|---|---|---|
| Steering → | 12 | 35% | — |
| Suspension → | 10 | 29% | — |
| Service Brakes | 6 | 18% | — |
| Wheels | 4 | 12% | — |
| Electrical System | 3 | 9% | — |
| Exterior Lighting | 3 | 9% | — |
| Back Over Prevention | 2 | 6% | — |
| Forward Collision Avoidance | 2 | 6% | — |
| Visibility/wiper | 2 | 6% | — |
| Air Bags | 1 | 3% | — |
| Fuel/propulsion System | 1 | 3% | — |
| Power Train | 1 | 3% | — |
| Seats | 1 | 3% | — |
| Tires | 1 | 3% | — |
| Vehicle Speed Control | 1 | 3% | — |
| Visibility | 1 | 3% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.