2009 Mercury Grand Marquis problems by component
26 owner complaints filed with NHTSA for the 2009 Mercury Grand Marquis, 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 | 5 | 19% | — |
| Electrical System | 4 | 15% | — |
| Service Brakes | 4 | 15% | — |
| Vehicle Speed Control | 4 | 15% | — |
| Engine | 2 | 8% | — |
| Fuel/propulsion System | 2 | 8% | — |
| Power Train | 2 | 8% | — |
| Service Brakes, Hydraulic | 2 | 8% | — |
| Suspension | 2 | 8% | — |
| Tires | 2 | 8% | — |
| Air Bags | 1 | 4% | — |
| Exterior Lighting | 1 | 4% | — |
| Fuel System, Gasoline | 1 | 4% | — |
| Seat Belts | 1 | 4% | — |
| Structure | 1 | 4% | — |
| Visibility | 1 | 4% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.