2005 Ford Five Hundred vs 2005 Mercury Grand Marquis
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Aug 7, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2005 Ford Five Hundred | 2005 Mercury Grand Marquis |
|---|---|---|
| NHTSA complaints | 510 | 487 |
| Recall campaigns | 2 | 4 |
| Service bulletins (TSBs) | 50 | 32 |
| Investigations | 2 | 4 |
| Crash reports | 20 | 24 |
| Fire reports | 6 | 5 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 19–21 | 19 |
| Median reported incident mileage | 74,000 mi | 74,000 mi |
Reported problems side by side
| Component | Ford Five Hundred | Mercury Grand Marquis |
|---|---|---|
| Exterior Lighting | 14 | 292 |
| Electrical System | 95 | 75 |
| Vehicle Speed Control | 104 | 39 |
| Power Train | 136 | 5 |
| Air Bags | 15 | 67 |
| Engine | 58 | 5 |
| Engine and Engine Cooling | 49 | 9 |
| Service Brakes, Hydraulic | 41 | 10 |
Symptoms owners describe
| Hesitation / surging | 63 | 0 |
| Stalling | 62 | 18 |
| Check engine light | 44 | 0 |
| Shifting problems | 15 | 0 |
| Vibration / shaking | 15 | 0 |
| Loss of power | 14 | 0 |
| Clunking / rattling | 11 | 0 |
| Airbag warning light | 6 | 46 |
2005 Ford Five Hundred
2005 Mercury Grand Marquis
Compare all Ford Five Hundred vs Mercury Grand Marquis years →
Method. Complaints are unique NHTSA reports. A vehicle that sold more units will naturally accumulate more complaints — use shares and read the underlying reports before drawing conclusions.