Reliability & 5-year cost of ownership — 2004 Mercury Grand Marquis
NHTSA data on file today
The 2004 Mercury Grand Marquis has 2 NHTSA recall campaigns and 348 owner complaints on file as of . Recall data is refreshed daily from NHTSA.
Recall campaigns on file
- NHTSA #15V861000 Loss of Headlights NHTSA notice
- NHTSA #06E056000 FUEL LEAK/FIRE NHTSA notice
Most-cited components in owner complaints
- Exterior Lighting 207 complaints
- Steering 65 complaints
- Electrical System 40 complaints
- Vehicle Speed Control 23 complaints
- Engine and Engine Cooling 10 complaints
- Power Train 9 complaints
Of the 348 complaints on file, 17 report a crash and 4 a fire; across all 348 complaints, owners report 10 injuries and 1 death (owner-reported, not verified by NHTSA).
Below average
Estimated 5-year repair + maintenance cost: $4,000–$8,000AI estimate — not from NHTSA data
The 2004 Mercury Grand Marquis has significant issues, especially with exterior lighting (207 complaints) and steering (65 complaints), warranting a below-average rating. Limited recall activity (2 campaigns) suggests some improvements; however, the high number of lighting complaints heavily weighs down the overall reliability perception.
Most-common failures
| Part | Typical mileage (AI estimate) | Cost range (AI estimate) | Frequency |
|---|---|---|---|
| Exterior lighting | 60,000–100,000 miles | $200–$600 | very common |
| Steering components | 70,000–120,000 miles | No reliable estimate | common |
AI estimate — not from NHTSA data: the mileage bands and repair-cost ranges above. Get a written repair quote before you budget.
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes
- Brake inspections
- Coolant flush
- Transmission service
- Tire rotations
- Spark plug replacement
- Drive belt inspection
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Flickering or dim headlights
- Steering wheel stiffness
- Unusual steering noises
- Erratic speed control
- Electrical system faults
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 2004 Mercury Grand Marquis at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.