2003 Mercury Grand Marquis Electrical system Problems
- Complaints
- 51about this part
- Share
- 14%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 51 complaints about the electrical system of the 2003 Mercury Grand Marquis, 14% of the 362 complaints for this model year. Where a mileage was given, the median is 95,100 miles. 4 of these say a crash was involved and 2 a fire, according to the filers.
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“The headlights on the car just went out. It happened more and more frequently at random times. Mechanic says it is the lighting control module ( lcm ) .he stated this is a common problem for my Grand Marquis and crown victoias this would have been fatal for my family and I if we were on the interstate traveling at night at the speed limit.”
NHTSA complaint #10383852, filed 2011-02, 44,239 miles“The headlights go out on my 2003 Mercury marquis while driving, they will go on again if I shut down the car and let it sit for about 10 minutes, but the issue will occur again once I drive for 15 - 20 minutes. This seems like a wide spread problem in this make and model, I have researched it on the internet and found dozens of complaints about this issue.”
NHTSA complaint #10350248, filed 2010-08, 45,000 miles“The headlights on my 2003 Mercury Grand Marquis have stopped working. This has been an intermittent problem. The most recent issue left my wife and mother in law stranded along the roadside. The first time I thought it was the switch in the steering column because after working the blinkers the lights started working. The next time my wife was driving on the interstate highway and the lights just went off at interstate speeds. It seems this is a common issue and has stranded others.”
NHTSA complaint #10583841, filed 2014-04, 125,000 miles“While driving at dusk on my way home (with my 5 year old little girl!), my headlights shut off without warning! We were fortunate that several drivers in the oncoming lane were concerned and conscientious and flashed their high beams to signal that something was wrong. Deductively, I ruled out my lights being off because the switch was on. That was until the traffic light turned red and I saw no reflection on the back of the car in front of me! …”
NHTSA complaint #10436914, filed 2011-11, 95,000 milesRelated service bulletins
- 10074793Jun 1, 2015Summary to be provided on a future date.
- 10013321Jan 1, 2005Am/fm and cellular phone reception interference - service tip.
- 10013381Nov 1, 2004Malfunction indicator lampand p0460 dtc in memory.
- 10013116Sep 6, 2004Malfunction indicator lamp (mil) illuminated - system lean diagnostic trouble codes (dtc's) - service tips. Various models including 2004 f-series.
- 10011160Aug 9, 2004Diagnostic trouble code (dtc) p0442.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2011 | 3 | 33% |
| 2010 | 3 | 12% |
| 2009 | 4 | 15% |
| 2008 | 9 | 11% |
| 2007 | 1 | 1% |
| 2006 | 8 | 6% |
| 2005 | 75 | 15% |
| 2004 | 40 | 11% |
| 2003 | 51 | 14% |
| 2002 | 10 | 13% |
| 2001 | 13 | 8% |
| 2000 | 17 | 10% |
| 1999 | 15 | 9% |
| 1998 | 15 | 10% |
| 1997 | 12 | 4% |
| 1996 | 16 | 7% |
| 1995 | 20 | 11% |
| 1994 | 10 | 6% |
| 1993 | 20 | 14% |
| 1992 | 41 | 16% |
| 1991 | 21 | 26% |
| 1990 | 13 | 23% |
| 1989 | 16 | 28% |
| 1988 | 36 | 49% |
| 1987 | 19 | 44% |
| 1986 | 11 | 52% |
| 1985 | 11 | 52% |
| 1984 | 5 | 33% |
| 1983 | 2 | 29% |
Other parts of the 2003 Mercury Grand Marquis
207 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