2004 Mercury Grand Marquis problems and complaints
Owners have filed 360 complaints with NHTSA about the 2004 Mercury Grand Marquis. The most-reported areas: Exterior Lighting (214), Steering (69), Electrical System (43).
Key takeaways
- 360 owner complaints on file with NHTSA.
- 17 involve a crash, 4 a fire, 10 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Exterior Lighting | 214 | 59% |
| Steering | 69 | 19% |
| Electrical System | 43 | 12% |
| Vehicle Speed Control | 23 | 6% |
| Engine And Engine Cooling | 10 | 3% |
| Power Train | 9 | 3% |
| Structure | 8 | 2% |
| Service Brakes | 7 | 2% |
| Visibility | 7 | 2% |
| Air Bags | 6 | 2% |
| Interior Lighting | 6 | 2% |
| Tires | 5 | 1% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2004 Mercury Grand Marquis 4-DR. w/SAB | Not rated | Not rated | Not rated | Not rated |
| 2004 Mercury Grand Marquis 4-DR. | Not rated | Not rated | Not rated | Not rated |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Exterior Lighting - filed 2026-08-24
The contact owns a 2004 Mercury Grand Marquis. The contact stated that while driving at an undisclosed speed, a local Police Officer stopped the vehicle and made the contact aware that both taillights were inoperable. No warning lights were illuminated. The vehicle was taken to a dealer to be diagnosed; however, the di...
Exterior Lighting - filed 2025-08-29
The contact owns a 2004 Mercury Grand Marquis. The contact received NHTSA Campaign Number: 15V861000 (Exterior Lighting). The contact stated that while driving at night, the headlights were flickering and became inoperable. Occasionally, the headlights operated as designed. There were no warning lights illuminated. The...
Electrical System - filed 2025-08-04
The contact owns a 2004 Mercury Grand Marquis. The contact stated that while the vehicle was parked, the key fob became inoperable. The contact was not able to start the vehicle with the security warning light illuminated. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not...
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More for the 2004 Mercury Grand Marquis
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.