2004 Mercury Grand Marquis problems by component
347 owner complaints filed with NHTSA for the 2004 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 |
|---|---|---|---|
| Exterior Lighting → | 206 | 59% | 86,000 mi |
| Steering → | 65 | 19% | 85,000 mi |
| Electrical System → | 40 | 12% | 88,670 mi |
| Vehicle Speed Control → | 23 | 7% | 39,036 mi |
| Engine and Engine Cooling → | 10 | 3% | — |
| Power Train | 9 | 3% | — |
| Structure | 8 | 2% | — |
| Visibility | 7 | 2% | — |
| Air Bags | 6 | 2% | — |
| Interior Lighting | 6 | 2% | — |
| Tires | 5 | 1% | — |
| Engine | 4 | 1% | — |
| Service Brakes, Hydraulic | 4 | 1% | — |
| Visibility/wiper | 4 | 1% | — |
| Fuel/propulsion System | 3 | 1% | — |
| Fuel System, Gasoline | 3 | 1% | — |
| Service Brakes | 3 | 1% | — |
| Suspension | 3 | 1% | — |
| Equipment | 2 | 1% | — |
| Latches/locks/linkages | 2 | 1% | — |
| Wheels | 1 | 0% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.