Mercury Grand Marquis: which model years draw the most owner complaints?
1,973 complaints filed with NHTSA about the Mercury Grand Marquis, model years 2000 to 2011. No model year stands out for the engine or transmission against the others. Quietest mature years by complaint count: 2010, 2009, 2002. Counts of unverified owner reports, compared only with other years of the same model; not failure rates.
Complaints by model year
| MODEL YEAR | COMPLAINTS | VS OTHER YEARS | STANDS OUT | RECALLS |
|---|---|---|---|---|
| 2000 Grand Marquis | 162 | — | 8 | |
| 2001 Grand Marquis | 157 | — | 5 | |
| 2002 Grand MarquisFEW REPORTS | 78 | quiet: 3 of 11 | 2 | |
| 2003 Grand Marquis | 362 | — | 2 | |
| 2004 Grand Marquis | 348 | — | 2 | |
| 2005 Grand Marquis | 487 | — | 5 | |
| 2006 Grand MarquisFEW REPORTS | 143 | — | 3 | |
| 2007 Grand MarquisFEW REPORTS | 96 | — | 3 | |
| 2008 Grand MarquisFEW REPORTS | 80 | quiet: 4 of 11 | 3 | |
| 2009 Grand MarquisFEW REPORTS | 26 | quiet: 2 of 11 | 2 | |
| 2010 Grand MarquisFEW REPORTS | 25 | quiet: 1 of 11 | 2 | |
| 2011 Grand MarquisFEW REPORTS | 9 | — | 2 |
"Stands out" = 40 or more complaints naming that system and at least twice the model's quiet (lower-quartile) year, or twice the share seen across every vehicle of that model year. Newer years have had less time on the road. "Quiet" ranks only years with 7+ years on the road and 20+ complaints. NHTSA data through November 2026.
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Other Mercury models
Mercury Cougar · Mercury Mariner · Mercury Mariner Hybrid · Mercury Milan · Mercury Montego · Mercury Monterey · Mercury Mountaineer · Mercury Sable. All makes and models.
Source: NHTSA public complaints, recalls, service bulletin and investigation databases, data received through November 2026. Complaints are unverified reports from owners, not failure rates: sales volumes are unknown, so a model year is only compared with other years of the same model. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Year pages: 20002001200320042005