2003 Mercury Grand Marquis
This year had more than double the complaints of this model's typical year.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
COMPLAINTS PER YEAR
View as data table
| Year | Complaints |
|---|---|
| 1980 | 0 |
| 1981 | 2 |
| 1982 | 3 |
| 1983 | 7 |
| 1984 | 15 |
| 1985 | 21 |
| 1986 | 21 |
| 1987 | 43 |
| 1988 | 73 |
| 1989 | 58 |
| 1990 | 56 |
| 1991 | 82 |
| 1992 | 255 |
| 1993 | 144 |
| 1994 | 156 |
| 1995 | 179 |
| 1996 | 239 |
| 1997 | 316 |
| 1998 | 143 |
| 1999 | 164 |
| 2000 | 162 |
| 2001 | 157 |
| 2002 | 78 |
| 2003 | 362 |
| 2004 | 347 |
| 2005 | 487 |
| 2006 | 142 |
| 2007 | 96 |
| 2008 | 78 |
| 2009 | 26 |
| 2010 | 24 |
| 2011 | 9 |
KNOWN PROBLEM AREAS
52% of complaints: exterior lighting — 188 distinct reports on file.
CRASH INJURYShow complaint excerpts
Its the LCM L(IGHT CONTROL MODULE)...HEAD LIGHTS went out on me one night coming down [XXX] causing me to wreck in a ditch and hitting a light pole INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI report, 20240114
13% of complaints: electrical system — 46 distinct reports on file.
CRASH INJURYShow complaint excerpts
Its the LCM L(IGHT CONTROL MODULE)...HEAD LIGHTS went out on me one night coming down [XXX] causing me to wreck in a ditch and hitting a light pole INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI report, 20240114
I started Mercury with foot on break like normal. Shifted into reverse. Car accelerated backwards at full speed. Brakes did not stop car. Attempted to shift into neutral but went into drive instead.
NHTSA ODI report, 20230120
WHILE DRIVING AT NIGHT THE HEAD LIGHTS SUDDENLY WENT OUT. THE ONLY WAY THE LIGHTS WOULD WORK AFTER THAT IS IF YOU HOLD THE HIGH BEAM LEVER BACK.
NHTSA ODI report, 20150518
7% of complaints: steering — 27 distinct reports on file.
5% of complaints: exterior lighting — 19 distinct reports on file.
CRASH5% of complaints: vehicle speed control — 18 distinct reports on file.
CRASH INJURYShow complaint excerpts
I started Mercury with foot on break like normal. Shifted into reverse. Car accelerated backwards at full speed. Brakes did not stop car. Attempted to shift into neutral but went into drive instead.
NHTSA ODI report, 20230120
TL* THE CONTACT OWNS A 2003 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE STOPPED, THE ENGINE RPMS INCREASED EXCESSIVELY AS THE VEHICLE VIOLENTLY ACCELERATED WITHOUT WARNING. THE CONTACT CRASHED INTO ANOTHER VEHICLE.
NHTSA ODI report, 20131028
TL* THE CONTACT OWNS A 2003 MERCURY GRAND MARQUIS. THE CONTACT STARTED THE IGNITION WITH THE BRAKE PEDAL DEPRESSED AND SUDDENLY THE VEHICLE UNINTENDEDLY ACCELERATED WHEN THE GEAR LEVER WAS SHIFTED INTO DRIVE.
NHTSA ODI report, 20121019
SAFETY TIMELINE
FRACTURE OF THE STEEL WHEEL RIM
REAR AXLE FRACTURE
SPARK PLUG EJECTION FROM CYLINDER HEAD
CERTAIN AFTERMARKET FUEL FILTERS SOLD UNDER THE PUROLATOR BRAND NAME, P/N F65277, SHIPPED FROM JANUARY 16 THROUGH JUNE 2, 2006, FOR USE ON THE ABOVE LISTED PASSENGER VEHICLES. DUE TO INCORRECT DESIGN
Remedy: UFI WILL NOTIFY OWNERS AND REPLACE THE FILTERS FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 4, 2006. OWNERS MAY CONTACT UFI FILTERS USA AT 800-230-5876.
Campaign 06E056000 — check if this car was fixed
LOSS OF HEADLIGHT FUNCTION
Loss of headlamp/exterior lighting
Loss of headlights
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.
Remedy: 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.
Campaign 15V861000 — check if this car was fixed
BUY-SMART CHECKLIST
2003 Mercury Grand Marquis — pre-purchase inspection
- Test/inspect for exterior lighting issues (188 reports on file for this year).
- Test/inspect for electrical system issues (46 reports on file for this year).
- Test/inspect for steering issues (27 reports on file for this year).
- Verify recall 06E056000 (fuel system, gasoline) has been completed.
- Verify recall 15V861000 (exterior lighting) has been completed.
OTHER YEARS OF THIS MODEL
BEST YEARS
WORST YEARS
FAQ
Is the 2003 Mercury Grand Marquis reliable?
Based on NHTSA complaint volume compared to this model's typical year, the 2003 Mercury Grand Marquis is rated "significantly worse".
What are the most common problems with the 2003 Mercury Grand Marquis?
The most-reported component is exterior lighting, accounting for 52% of complaints on file.
How many recalls does the 2003 Mercury Grand Marquis have?
2 recalls on file for this model year.
Data updated 2026-07-11 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.