2003 Mercury Grand Marquis Exterior lighting Problems
- Complaints
- 207about this part
- Share
- 57%of 362 total for the year
- Median mileage
- 95,100miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 207 complaints about the exterior lighting of the 2003 Mercury Grand Marquis, 57% of the 362 complaints for this model year. Where a mileage was given, the median is 95,100 miles. 5 of these say a crash was involved, according to the filers. 1 recall campaign on record is filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Lcm recall - the dealer will not order parts from the manufacturer for a failing lighting control module for my 2003 Grand Marquis. They told me that the parts are not available, and just don't drive after dark. I cannot get my headlights to work at random times. They will just shut off, or not come on at all occasionally. Car can be in motion, or stationary.”
NHTSA complaint #10920236, filed 2016-10, 51,500 miles“Head lights would not come on when we tried to return to our hotel in yankton sd. Head lights are intermittent going to work during morning drive in lincoln ne. Morning sun is bright enough so not a safety hazard. We can not trust vehicle to drive at night. Went to beatrice ford, beatrice ne to get fixed but were told lcm module is on back order. 8-22-2014.”
NHTSA complaint #10627609, filed 2014-08, 57,871 miles“On 25 april 2016 driving on a two lane country road at night both headlights suddenly turned off. I was able to pull into a farm access space and avoided the ditch. Although the parking lights seemed to work I was not able to turn on the headlights for several minutes. Finally after many trys with the light switch the headlights did come back on. I was able to reach home without further incident but now fear driving car at night!”
NHTSA complaint #10861457, filed 2016-04, 201,000 miles“While driving my lights just shut off by themselves and I have to hold the lever towards me to continue to have light until the sensor decides to shut back on. This is a safety hazard and I have 2 small children that I ride back and forth to school in this vehicle.”
NHTSA complaint #10822433, filed 2016-01, 82,200 miles“Headlights would not come on in the manual or automatic light switch mode. The only way to have headlights on is to hold high beam lever in the flash more ( lever pulled toward driver). I found after a while if I kick my foot above the accelerator, the lights would come on and stay on for an undetermined time. Further diagnosis indicates a poor connection by moving one of the modules connectors.”
NHTSA complaint #10493142, filed 2013-01, 89,000 milesRelated recalls
- 15V861000Dec 22, 2015Ford Motor Company (Ford) is recalling certain model year 2003-2005 Ford Crown Victoria and Mercury Grand Marquis vehicles manufactured October 3, 2001, to…Covers: Mercury Grand Marquis 2003–2005, Ford Crown Victoria 2003–2005
Related service bulletins
- 10055936Apr 11, 2014Ford: the lighting control module has extended warranty coverage, on certain vehicles, due to a possible crack on solder joint that connects relay to circuit board. Model…
Exterior lighting: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2010 | 2 | 8% |
| 2009 | 1 | 4% |
| 2008 | 5 | 6% |
| 2007 | 5 | 5% |
| 2006 | 6 | 4% |
| 2005 | 293 | 60% |
| 2004 | 207 | 59% |
| 2003 | 207 | 57% |
| 2002 | 6 | 8% |
| 2001 | 11 | 7% |
| 2000 | 21 | 13% |
| 1999 | 20 | 12% |
| 1998 | 16 | 11% |
| 1997 | 19 | 6% |
| 1996 | 18 | 8% |
| 1995 | 16 | 9% |
| 1994 | 12 | 8% |
| 1993 | 11 | 8% |
| 1992 | 23 | 9% |
| 1991 | 3 | 4% |
| 1988 | 2 | 3% |
| 1987 | 1 | 2% |
| 1983 | 1 | 14% |
Other parts of the 2003 Mercury Grand Marquis
51 complaintsSteering
28 complaintsSuspension
28 complaintsVehicle speed control
27 complaintsEngine cooling
13 complaintsTransmission and drivetrain
12 complaintsAir bags
11 complaintsFuel system
10 complaintsVisibility (wipers, defrost, mirrors)
10 complaintsWheels
10 complaintsBody and structure
9 complaintsBrakes
7 complaints
← All problems reported for the 2003 Mercury Grand Marquis
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology