Mercury Grand Marquis 2003–2011
4th generation · Ford Panther (hydroformed boxed frame, rack-and-pinion)
NHTSA data through 13 August 20261,986 complaints, 1,585 with mileageMethod
- Reports with mileage
- 1,585
- Median of reported failures
- 71,000 mi
- Most-reported system
- Exterior lighting (37.4%)
- Recalls
- 3
Before-you-buy checklist ↓Check this VIN — NHTSA ↗
On this generation, failures are spread across the mileage range, with the middle half between 41,322 and 100,838 miles.
Figure 1 · Mercury Grand Marquis 2003–2011 · 1,585 reports with mileage
Mileage at failure
Complaints per 5,000-mile bin, 0 to 200,000 miles, equal bins on a linear scale. Tallest bar = 100 complaints.
- Rest of the range
- Median
- 200,000+ — 38 complaints (2.4%), plotted separately
- 10%
- 14,556
- 25%
- 41,322
- Median
- 71,000
- 75%
- 100,838
- 90%
- 140,540
Show the numbers
| Mileage | Complaints | Share |
|---|---|---|
| 0–5,000 | 87 | 5.5% |
| 5,000–10,000 | 35 | 2.2% |
| 10,000–15,000 | 39 | 2.5% |
| 15,000–20,000 | 39 | 2.5% |
| 20,000–25,000 | 36 | 2.3% |
| 25,000–30,000 | 39 | 2.5% |
| 30,000–35,000 | 34 | 2.1% |
| 35,000–40,000 | 59 | 3.7% |
| 40,000–45,000 | 56 | 3.5% |
| 45,000–50,000 | 60 | 3.8% |
| 50,000–55,000 | 100 | 6.3% |
| 55,000–60,000 | 57 | 3.6% |
| 60,000–65,000 | 71 | 4.5% |
| 65,000–70,000 | 46 | 2.9% |
| 70,000–75,000 | 71 | 4.5% |
| 75,000–80,000 | 73 | 4.6% |
| 80,000–85,000 | 67 | 4.2% |
| 85,000–90,000 | 75 | 4.7% |
| 90,000–95,000 | 48 | 3.0% |
| 95,000–100,000 | 69 | 4.4% |
| 100,000–105,000 | 59 | 3.7% |
| 105,000–110,000 | 43 | 2.7% |
| 110,000–115,000 | 38 | 2.4% |
| 115,000–120,000 | 27 | 1.7% |
| 120,000–125,000 | 29 | 1.8% |
| 125,000–130,000 | 25 | 1.6% |
| 130,000–135,000 | 23 | 1.5% |
| 135,000–140,000 | 7 | 0.4% |
| 140,000–145,000 | 27 | 1.7% |
| 145,000–150,000 | 22 | 1.4% |
| 150,000–155,000 | 26 | 1.6% |
| 155,000–160,000 | 12 | 0.8% |
| 160,000–165,000 | 12 | 0.8% |
| 165,000–170,000 | 6 | 0.4% |
| 170,000–175,000 | 7 | 0.4% |
| 175,000–180,000 | 10 | 0.6% |
| 180,000–185,000 | 5 | 0.3% |
| 190,000–195,000 | 6 | 0.4% |
| 195,000–200,000 | 2 | 0.1% |
| 200,000+ | 38 | 2.4% |
Source: NHTSA Office of Defects Investigation, public domain. Complaint counts reflect what owners reported and are not a measure of failure rate per vehicle sold.
What this can and cannot tell you: these are complaints owners chose to file, not a failure rate. Popular models accumulate more of them simply by being common. How this is built.
Owners filed 1,986 complaints with NHTSA about the 2003–2011 Mercury Grand Marquis, and 1,585 of them record the mileage at which the failure happened. That is enough to show not just what fails, but when.
Failures are spread across the mileage range, with the middle half between 41,322 and 100,838 miles. The median is 71,000 miles.
The most-reported areas are the exterior lighting (37.4% of complaints, typically around 85,000 miles), the electrical system (9.9% of complaints, typically around 75,000 miles), the steering (8.6% of complaints, typically around 89,000 miles).
3 recall campaigns cover this generation.
If you arrived asking “is it reliable?” — this page answers the version of that question the data can support: which problems owners reported, and at what mileage.
How many miles does a 2003–2011 Mercury Grand Marquis last?
Half of the failure reports on the 2003–2011 Mercury Grand Marquis were filed by 71,000 miles and 90% by 141,000 miles — figures drawn from 1,585 NHTSA complaints that record an odometer reading, so they time reported failures, not the cars whose owners never filed one.
38 reports (2.4%) came in past 200,000 miles — each one proof a Grand Marquis reached that mileage, not that it died there.
Before you buy a 2003–2011 Grand Marquis: the 3-minute check
Generated from 1,585 mileage-tagged complaints, 3 recall campaigns, 2 documented problem areas. Print this page — the checklist survives print.
- Run the VIN at nhtsa.gov/recalls. 3 campaigns cover this generation; an open recall is a free repair you can make the seller's problem.
- Check rear air suspension on 2003–2011 (so–equipped) cars. Rear air springs and compressor leak and fail on air-suspension-equipped cars, causing rear sag and compressor overrun.
- Check steering rack on 2003–2011 cars. The rack-and-pinion steering introduced for 2003 draws leak and looseness complaints not applicable to the earlier recirculating-ball cars — a useful discriminator between the 1998-2002 and 2003-2011 pages.
- Complaint reports are not spread evenly across model years here — see the by-model-year table below before you settle on a year.
- End with a pre-purchase inspection of this car. Aggregate data describes the population; the example in front of you has its own history.
For a buyer, failures on this generation are spread rather than concentrated: the middle half falls between 41,000 and 101,000 miles, with a median of 71,000. There is no single mileage threshold to watch, which means condition and maintenance records are more informative than the odometer.
On inspection, the exterior lighting and the electrical system are where this generation's reports concentrate, so those are the areas worth a specific look. The electrical system in particular shows a median failure mileage of 75,000, which gives a concrete number to compare against the odometer of any car you are considering.
None of this is a substitute for a pre-purchase inspection on the individual car. Aggregate patterns describe a population; the example in front of you has its own history.
What fails, and when
Figure 2 · Mercury Grand Marquis 2003–2011
When each system fails
Bar spans the middle half of reports; the notch inside each bar is the median. Miles at failure on a proportional scale — equal distances are equal ratios, not equal miles.
- Throttle and speed control162 reports28,00010,000–58,000Throttle and speed control: 162 reports, median 28,000 miles, middle half 10,000 to 58,000 miles.
- Body structure69 reports48,00026,000–66,000Body structure: 69 reports, median 48,000 miles, middle half 26,000 to 66,000 miles.
- Seat belts72 reports58,00041,000–87,000Seat belts: 72 reports, median 58,000 miles, middle half 41,000 to 87,000 miles.
- Airbag system134 reports60,00037,000–86,000Airbag system: 134 reports, median 60,000 miles, middle half 37,000 to 86,000 miles.
- Electrical system196 reports75,00048,000–100,000Electrical system: 196 reports, median 75,000 miles, middle half 48,000 to 100,000 miles.
- Exterior lighting742 reports85,00060,000–113,000Exterior lighting: 742 reports, median 85,000 miles, middle half 60,000 to 113,000 miles.
- Steering170 reports89,00055,000–135,000Steering: 170 reports, median 89,000 miles, middle half 55,000 to 135,000 miles.
- Your odometer — appears after you enter it in “Where your car sits”
Ordered by median mileage, earliest first. The first 12,000 miles are shaded: that is the boundary this site uses between a manufacturing defect and ordinary wear, not a property of the world.
Source: NHTSA Office of Defects Investigation, public domain.
| System | Complaints | Share | Median | 25–75% |
|---|---|---|---|---|
| Exterior lighting | 742 | 37.4% | 85,000 | 60,000–113,000 |
| Electrical system | 196 | 9.9% | 75,000 | 48,000–100,000 |
| Steering | 170 | 8.6% | 89,000 | 55,000–135,000 |
| Throttle and speed control | 162 | 8.2% | 28,000 | 10,000–58,000 |
| Airbag system | 134 | 6.7% | 60,000 | 37,000–86,000 |
| Seat belts | 72 | 3.6% | 58,000 | 41,000–87,000 |
| Body structure | 69 | 3.5% | 48,000 | 26,000–66,000 |
| Engine and its cooling system | 44 | 2.2% | 36,000 | 3,500–100,000 |
| Transmission and driveline | 43 | 2.2% | 40,000 | 15,000–66,000 |
| Tyres | 42 | 2.1% | 18,000 | 13,000–24,000 |
Where your car sits
Failure reports by the odometer reading they were filed at. Pick the anchor nearest your car — or type the exact mileage: your marker lands on this curve and on the timing chart above.
Figure 3 · Mercury Grand Marquis 2003–2011 · 1,585 reports with mileage
Share of reports below each mileage
Share of mileage-tagged reports filed at or below each odometer reading. Steps rise only at bin edges, by exact counted shares.
- 60,000 mi — 40% of reports below
- 90,000 mi — 66% of reports below
- 120,000 mi — 84% of reports below
- Median — the staircase crosses the 50% line here
- Your odometer — appears after you enter it below
The staircase tops out at 98%: the remaining 2.4% of reports (38) came above 200,000 miles.
Nothing is smoothed or interpolated. Linear axis, same as Figure 1.
Source: NHTSA Office of Defects Investigation, public domain.
At 60,000 miles
40% of the failure reports on this generation came below this mileage. That describes reports, not your odds.
Reported earlier than this mileage — ask for repair records
- Throttle and speed control — median 28,000 mi
In the reporting window
- Exterior lighting — middle half 60,000–113,000 mi
- Electrical system — middle half 48,000–100,000 mi
- Steering — middle half 55,000–135,000 mi
- Airbag system — middle half 37,000–86,000 mi
- Seat belts — middle half 41,000–87,000 mi
- Body structure — middle half 26,000–66,000 mi
At 90,000 miles
66% of the failure reports on this generation came below this mileage. That describes reports, not your odds.
Reported earlier than this mileage — ask for repair records
- Throttle and speed control — median 28,000 mi
- Airbag system — median 60,000 mi
- Seat belts — median 58,000 mi
- Body structure — median 48,000 mi
In the reporting window
- Exterior lighting — middle half 60,000–113,000 mi
- Electrical system — middle half 48,000–100,000 mi
- Steering — middle half 55,000–135,000 mi
At 120,000 miles
84% of the failure reports on this generation came below this mileage. That describes reports, not your odds.
Reported earlier than this mileage — ask for repair records
- Exterior lighting — median 85,000 mi
- Electrical system — median 75,000 mi
- Throttle and speed control — median 28,000 mi
- Airbag system — median 60,000 mi
- Seat belts — median 58,000 mi
- Body structure — median 48,000 mi
In the reporting window
- Steering — middle half 55,000–135,000 mi
Which systems, and when
Complaints about this generation are not spread evenly across the vehicle, and the systems that generate the most of them do not all fail at the same point in a car's life. The median failure across all systems here is 71,000 miles; the figures below show which parts of the car run ahead of that and which run behind.
The exterior lighting accounts for 37.4% of complaints (742 reports, 611 of them with a mileage figure), with a median of 85,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 60,000 and 113,000 miles.
A single system taking 37.4% of all complaints is a concentration worth noting. It means that for this generation, most of what owners reported came back to one area of the car rather than being distributed across many small faults.
The electrical system accounts for 9.9% of complaints (196 reports, 155 of them with a mileage figure), with a median of 75,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 48,000 and 100,000 miles.
The steering accounts for 8.6% of complaints (170 reports, 128 of them with a mileage figure), with a median of 89,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 55,000 and 135,000 miles.
Throttle and speed control accounts for 8.2% of complaints (162 reports, 126 of them with a mileage figure), and it fails early — a median of 28,000 miles, well before the vehicle's overall median. Failures clustered this far below the rest of the car usually point to a design or manufacturing problem rather than wear, because wear does not selectively target one system on low-mileage examples. The middle half of these reports falls between 10,000 and 58,000 miles.
The airbag system accounts for 6.7% of complaints (134 reports, 113 of them with a mileage figure), with a median of 60,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 37,000 and 86,000 miles.
The seat belts account for 3.6% of complaints (72 reports, 61 of them with a mileage figure), with a median of 58,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 41,000 and 87,000 miles.
Differences between model years
Within this generation, complaint volume is not constant across model years. The 2005 model year drew the most — 634 complaints — while 2009 drew the fewest at 35. The median year sits at 149.
That makes 2005 an outlier: roughly 4.2 times the median year of this generation. A single year standing that far apart usually reflects either a first-year issue that was later corrected, or a component change introduced for that year. Anyone shopping this generation has a straightforward reason to prefer a different year, all else being equal.
Recalls and what they cover
NHTSA records 3 recall campaigns covering vehicles in this generation. A recall means the manufacturer or the regulator concluded there was a safety defect or a standard was not met, and that a free remedy is owed to owners — including second and later owners.
The campaigns cluster around the steering (2), the exterior lighting (1). Repeated recalls against the same area of the car generally mean the first remedy did not fully resolve the underlying problem.
Recall status is specific to the individual vehicle, not the model. Checking a VIN against NHTSA's lookup is free and takes under a minute, and it is the only way to know whether a particular car has had the work done.
Reported severity
What owners reported alongside the failure itself, out of 1,986 complaints against this generation:
- Crashes
- 149 (7.5%)
- Fires
- 26
- Injury reports
- 78
- Fatality reports
- 2
These flags are self-reported by complainants and unverified by NHTSA; one report can carry several flags, so the counts overlap and do not sum to a total. They are not adjusted for how many of these vehicles are on the road. No chart is drawn here on purpose: overlapping counts spanning very different magnitudes cannot be honestly encoded as lengths.
Documented problems
Rear Air Suspension 2003–2011 (so–equipped)
Rear air springs and compressor leak and fail on air-suspension-equipped cars, causing rear sag and compressor overrun.
Steering Rack 2003–2011
The rack-and-pinion steering introduced for 2003 draws leak and looseness complaints not applicable to the earlier recirculating-ball cars — a useful discriminator between the 1998-2002 and 2003-2011 pages.
By model year
| Year | Complaints | With mileage |
|---|---|---|
| 2003 | 449 | 349 |
| 2004 | 422 | 342 |
| 2005 | 634 | 506 |
| 2006 | 188 | 153 |
| 2007 | 111 | 87 |
| 2008 | 101 | 85 |
| 2009 | 35 | 28 |
| 2010 | 35 | 27 |
| 2011 | 11 | 8 |
Recalls (3) — is your car included?
Apr 2017 · 2003–2005 · Exterior LightingA loss of headlights can reduce driver visibility and increase the risk of a crash.
The defect. Ford Motor Company (Ford) is recalling certain model year 2003-2005 Ford Crown Victoria and Mercury Grand Marquis vehicles manufactured October 3, 2001, to August 2, 2005. The affected vehicles have a lighting control module (LCM) that may fail, resulting in a loss of headlights.
What can happen. A loss of headlights can reduce driver visibility and increase the risk of a crash.
The free fix. Ford will notify owners, and dealers will replace the LCM, free of charge. The recall began April 14, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15S39.
Nov 2014 · 2005–2011 · SteeringImproper servicing of the upper intermediate shaft could cause the shaft to separate, which can then result…
The defect. Ford Motor Company (Ford) is recalling certain model year 2005-2011 Ford Crown Victoria, 2005-2011 Mercury Grand Marquis vehicles manufactured March 23, 2004, to August 30, 2011, and 2005-2011 Lincoln Town Car vehicles manufactured March 8, 2004, to August 30, 2011, and on which the upper intermediate shaft was serviced during the course of safety recall 13V-385. The prior repairs may not have been correctly performed.
What can happen. Improper servicing of the upper intermediate shaft could cause the shaft to separate, which can then result in a loss of steering control, and increasing the risk of a crash.
The free fix. Ford will notify the owners of vehicles whose repair records reflect that the upper intermediate steering shaft was repaired during the course of the prior recall 13V-385. Dealers will inspect and replace the upper immediate shaft if necessary free of charge. The recall began November 17, 2014. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 14S25.
Oct 2013 · 2005–2011 · SteeringIf the lower bearing separates, the vehicle may experience a loss of steering, increasing the risk of a crash.
The defect. Ford is recalling certain model year 2005-2011 Ford Crown Victoria (including Crown Victoria Police Interceptors), Mercury Grand Marquis, and Lincoln Town Car vehicles. The affected vehicles are currently registered or were originally sold in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin. Severe corrosion can seize the lower intermediate shaft which may cause the upper interme
What can happen. If the lower bearing separates, the vehicle may experience a loss of steering, increasing the risk of a crash.
The free fix. Ford will notify owners and dealers will replace the lower intermediate shaft, free of charge. The upper intermediate shaft and steering column lower bearing will be inspected to identify any damage that may have occurred as a result of lower intermediate shaft corrosion, and repaired or replaced as necessary. If the steering column lower bearing has separated, a retainer clip will be installed. The recall began on October 23, 2013. Owners may contact Ford at 1-866-436-7332. Ford's recall number is 13S08.
What owners reported
While waiting for red the light to change, the vehicle suddenly accelerated. The driver could not maintain control, the vehicle jumped the curb and crashed into a ditch. *Ak there was no diagnostic test performed on the vehicle. The air bag did not deploy, the electronic fuel shut off and did not engage and the seat…
2003 · 209 miles · Hydraulic brake circuit
the contact owns a 2003 Mercury Grand Marquis. The contact stated there was an abnormal noise from the rear axle. The dealer was unable to diagnose the failure yet the failure persisted. At 15,000 miles, the contact took the vehicle back to the dealer with concerns of the noise. Again, the dealer was unable to…
2003 · 8,000 miles · Transmission and driveline
the contact owns a 2003 Mercury Grand Marquis. On at least five occasions, the vehicle has failed to start. During the most recent failure, the vehicle had to be towed to the dealer. The diagnosis was that the vehicle was not being driven long distances and the battery needed to be recharged. The purchase date and…
2003 · 9,000 miles · Electrical system
Rear axle and bearing noises. Marquis bought new. Owner's son-in-law noted minor bearing noise in rear when visiting in 2004. Son-in-law received car after death of mother-in-law in 2012, car had 24k miles at that time. Noticed pronounced rear end noise at that time (a whaa-whaa-whaa matching speed changes). Left rear…
2003 · 10,000 miles · Suspension
Built from 1,585 NHTSA complaints with mileage · snapshot 2026-08-18 · open data · reproduce this page