Headlights problems of the 2004 Mercury Grand Marquis - part 2

113 problems related to headlights have been reported for the 2004 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Mercury Grand Marquis based on all problems reported for the 2004 Grand Marquis.

36 Headlights problem

Failure Date: 07/29/2014

Headlights randomly turn off while driving. Ford states this is not a safety issues, it is! can't be driving without headlights; can cause accidents, tickets, failure to pass state inspections, etc. Ford has issued customer relationship campain 14n01, but the part to fix this problem is on back order, and they are unable or unwilling to give any time frame on when part witll be available.

37 Headlights problem

Failure Date: 07/25/2014

1st incident: headlights went off about 2 minutes after starting car and beginning to drive . Would not turn on again while driving or when car was stopped and running. Turned off car and tried again. Headlights worked for about 30 seconds. Continuing this pattern after 2 weeks. Headlights do come on when high beam 'flash' lever is held in on position. . Have not tested how long they will stay on.

38 Headlights problem

Failure Date: 07/18/2014

Both headlights suddenly wouldn't turn on. Very dangerous. Night driving prohibited. Ford has agreed to repair due to voluntary recall. Glad this didn't happen when I was out at night. I live near dark dangerous highways and this could have led to fatal driving conditions had it happened on the road at night. This shouldn't be a "voluntary" recall where you have to call Ford to get the fix.

39 Headlights problem

Failure Date: 07/17/2014

Our headlights just stopped working. You cant turn them on and the only way you can turn the headlights on is to push the stick forward and hold it forward while you are driving down the road. Other than that, they wont come on. All other lights are operating fine.

40 Headlights problem

Failure Date: 07/09/2014

While my wife was driving home at night, her headlights went out on her 2004 Mercury Grand Marquis. She tried all combinations to get the lights back on and had to hold the high beam passing light up while driving the rest of the way home. I took the car to the local Ford dealer to get it repaired and they told me it could take a month or more to get the part to fix it. In our area, thunderstorms come up regularly during the day, so the car can't even be driven during the day. Ford motor company says that they can't provide a loaner or a rental so that we can drive safely until it is fixed. I don't understand why headlights going out is not a safety issue.

41 Headlights problem

Failure Date: 06/02/2014

The contact owns a 2004 Mercury Grand Marquis. The contact stated that the headlights would not illuminate when turned on manually or when turned on by the automatic sensor. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The manufacturer was aware of the failure. The failure mileage was 144,000.

42 Headlights problem

Failure Date: 06/01/2014

2004 Mercury Grand Marquis. Consumer writes in regards to headlights failed to come. Consumer sent additional correspondence. The consumer received a letter from Ford announcing a recall program (14n01). The letter stated there maybe a possibility that an electronic module lighting control module that supplies power to the headlights may fail. The consumer stated she began noticing the headlight failure in June. The vehicle was taken to the dealer, where it was determined the problem was covered by the recall program. The dealer ordered the replacement. However, the manufacturer was unable to provide a date, as to when the part would be available.

43 Headlights problem

Failure Date: 05/01/2014

The contact owns a 2004 Mercury Grand Marquis. The contact stated that the headlights failed to illuminate. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 95,203.

44 Headlights problem

Failure Date: 04/23/2014

While driving in the evening on an unlit road with my 10yr old in the car my headlights jst went out. There was no place to pull over and we came within inches of ending up in a ravine. I have read your NHTSA report on the issues with Ford lcms and I find it ridiculous that this is not considered a safety issue. The internet is full of complaints on this part that Ford knows will go bad and still there is no recall.

45 Headlights problem

Failure Date: 04/01/2014

The contact owns a 2004 Mercury Grand Marquis. The contact received a manufacturer¿s recall regarding the headlight module and was informed that the part needed to remedy the vehicle was unavailable. The dealer did not know when the parts would arrive. The manufacturer was notified of the failure. The contact stated that the vehicle experienced headlight failure on multiple occasions. The VIN was unavailable. The NHTSA campaign number was not found. The failure mileage was unknown.

46 Headlights problem

Failure Date: 03/26/2014

The contact owns a 2004 Mercury Grand Marquis. The contact stated that while driving various speeds, the headlights failed. The lights re-illuminated after the contact pulled over and waited 5-10 minutes. The vehicle was not taken to a dealer or independent mechanic. The manufacturer was not notified of the failure. The failure mileage was 58,000 and the current mileage was 60,000.

47 Headlights problem

Failure Date: 03/13/2014

The contact owns a 2004 Mercury Grand Marquis. While driving at various speeds, the headlights failed without warning. The vehicle was taken to a dealer where it was diagnosed that the lighting control module failed and needed to be replaced. The vehicle was repaired per NHTSA campaign number: 15v861000 (exterior lighting); however, the failure recurred. The manufacturer was not aware of the failure. The failure mileage was approximately 47,000.

48 Headlights problem

Failure Date: 02/22/2014

While driving at night the headlights go on and off at will. Have to hold headlight lever to get lights on and only then bright lights. Very unsafe.

49 Headlights problem

Failure Date: 02/19/2014

I was traveling from memphis TN. Back home to jonesboro ar. And the lights just stop working it was about 9:30 at night on expressway and all of a sudden no lights and they didn't come back on the headlights and I had to pull the flash to pass foward and hold just to have lights the whole trip home holding it and having to drive with other hand difficult. So it is a safety issue to me and the many others with this issue thanks I pray y'all do a recall on that part to fix the many drivers with the same problems.

50 Headlights problem

Failure Date: 02/09/2014

My light control module has been determined by the local dealer to be defective. I've been told it is on back order w/ no eta. I've since been told the NHTSA has inexplicably found this to "not be a safety issue". I'm wondering on what planet the NHTSA drives that having intermittently working headlights is not a safety issue? I am expecting a more definitive and timely response to having my car repaired.

51 Headlights problem

Failure Date: 11/01/2013

While driving down the street under normal conditions at night, my headlights went out unexpectedly. They would not turn back on, either in the automatic or manual "on" setting. This problem continues to happen. Sometimes the lights work, but then will turn off without warning. I researched this problem on the internet and there are many, many, other complaints exactly the same as mine, with the same make and model car. To me, this is a manufacturing defect and a major safety concern. Can you imagine this happening at night on the highway in a snowstorm? the faulty part seems to be the lighting control module, which in my area costs $551. 78, and labor is about $90.

52 Headlights problem

Failure Date: 10/04/2013

Exterior headlights go on and off intermittently. Have to hold high beam in place in order to have lights. Will automatically turn off and on by itself. Has been doing this for about a wk and is getting worse.

53 Headlights problem

Failure Date: 10/01/2013

The contact owns a 2004 Mercury Grand Marquis. The contact stated that both headlights intermittently failed. The vehicle was taken to the dealer for diagnostic testing, who stated that the light control module would need to be replaced. The vehicle was not repaired. The manufacture was not made aware of the failure. The failure mileage was 72,000. The VIN was not available.

54 Headlights problem

Failure Date: 09/16/2013

I was getting ready to leave my office at dark, started my car and headlights did not come on, everything else was working. It is now April 10, 2014. About 2 months ago my lights have been working intermittently, I will be driving down highway and they will go out. I pull the turn lever to bright lights and they work, let it go and they go out. Sometimes they will come back on, sometimes not. It's getting worse and worse.

55 Headlights problem

Failure Date: 09/11/2013

The contact owns a 2004 Mercury Grand Marquis. The contact stated that while driving 35 mph, the headlights failed. The vehicle was stopped and the lights would illuminate at random intervals. The contact had to hold the high beam lever in the on position in order to see the roadway. The vehicle was taken to a dealer for diagnosis and the contact was informed that the lighting control processor would need to be replaced. The vehicle had not been repaired. The failure and current mileage was 113,000.

56 Headlights problem

Failure Date: 07/01/2013

Headlights do not turn on , internet reports light control unit fails this is a major safety issue.

57 Headlights problem

Failure Date: 06/13/2013

While driving at night just prior to entering I-77 in columbia SC my headlights went off without warning. I could only keep them on by holding down the high beam lever until I got homw. Since then they will sometime work and sometime not. I took it to the local Ford dealership and they gave me an estimate of $943. 00 for parts and labor. In reading other complaints I see this is not an unusual complaint as it has happened to others. Is there any help from the manufacture as I am sure the local dealership is not sympathic to the problem. This is a dangerous problem as it comes without warning and I could be anywhere at any speed. This was my mom's car and I thank god it happened to me and not her before she passed away.

58 Headlights problem

Failure Date: 05/30/2013

The contact owns a 2004 Mercury Grand Marquis. The contact stated that the headlights failed. The headlights stayed on if the high beams were activated. The contact changed the fuses and the light bulbs but the failure continued. The vehicle had not been to the dealer. The failure and current mileages were 81,000.

59 Headlights problem

Failure Date: 05/15/2013

The contact owns a 2004 Mercury Grand Marquis. The contact stated that while driving 30 mph, the headlights failed. The failure recurred several times. The vehicle was taken to a dealer for diagnosis but the contact decided not to have the diagnostic performed. The vehicle was taken to an independent mechanic for diagnosis where the contact was informed that the relay box was the cause of the failure. The manufacturer was made aware of the failure. The vehicle had not been repaired. The failure and current mileage was 30,000.

60 Headlights problem

Failure Date: 05/13/2013

The contact owns a 2004 Mercury gran marquis. The contact stated that while driving 50 mph, the headlights failed. The vehicle was taken to the dealer for inspection, who stated the headlight control module would require replacing. The headlight control module was replaced. The failure was reported to the manufacturer. The failure mileage was 92,000. The current mileage was 92,100.

61 Headlights problem

Failure Date: 04/16/2013

While driving, headlights go out. There are hundreds of reports about this on the web, but Ford has done nothing about it. They don't even tell owners what to do when the headlamps go out in such a dangerous emergency. (by holding the headlight control arm back in the high beam position, the headlamps will go on (in my case) as is reported by others. ) (that fatalities are not reported is irrelevant. This is extremely serious defect and Ford has been covering it up for years. ) -30-.

62 Headlights problem

Failure Date: 02/01/2013

The contact owns a 2004 Mercury Grand Marquis. The contact stated that while traveling at various speeds, the headlights intermittently failed. The vehicle was taken to a private mechanic where it was determined that the lighting module had failed. The vehicle was not repaired. The failure mileage was 86,000.

63 Headlights problem

Failure Date: 02/01/2013

The contact owns a 2004 Mercury Grand Marquis. The contact stated that the low beam headlights would flicker on and off while activated. The vehicle was taken to an authorized dealer where the lighting control module was replaced however, the failure recurred randomly. The manufacturer was notified of the failure. The approximate failure mileage was 54,000.

64 Headlights problem

Failure Date: 12/31/2012

The contact owns a 2004 Mercury Grand Marquis. While driving approximately 50 mph, the headlights suddenly failed. The headlights became operable within ten minutes. The malfunction occurred four times. The vehicle was taken to an authorized dealer twice for the same failure. The second time a diagnostic test was performed, the technician stated the computer chip needed to be replaced. The vehicle was repaired. The manufacturer was notified of the defect. The approximate failure mileage was 80,000. . . . . Updated 03-28-13 the consumer stated at no time when the lights went off did an indicator on the dash board come on. The dealer advised the lighting control module needed to be replaced. Updated 04/09/2013.

65 Headlights problem

Failure Date: 11/14/2012

The contact owns a 2004 Mercury Grand Marquis. The contact stated that while driving approximately 60 mph with the headlights activated, there was a sudden failure in the headlight illumination. The contact continued to drive and within several minutes, the headlights operated normally. An authorized dealer was notified of the failure and informed the contact that the headlight control module would need to be replaced. The manufacturer was also notified of the malfunction. The vehicle had not been repaired. The approximate failure mileage was 62,000.

66 Headlights problem

Failure Date: 11/14/2012

The contact owns a 2004 Mercury Grand Marquis. The contact stated that while driving approximately 65 mph, the headlights were activated and suddenly became inoperative. The failure recurred intermittently. The manufacturer was made aware of the problem and informed the contact that there was not a recall related to the malfunction. Also, the dealer was notified of the issue who advised that the headlight control module would need to be replaced. The vehicle was not repaired. The approximate failure mileage was 72,000. The VIN was unavailable.

67 Headlights problem

Failure Date: 11/09/2012

Driving home in the evening on a rural 2 lane highway in ms. And my headlights goes off. No warning just went out. Tried to manually turn them on, but nothing happened. This incident could have turned out very different, if I wasn't familiar with the area. . . This problem seems to be bigger than just me. . . There was an investigation by your agency NHTSA action #: pe08066, 11/26/08 to 3/24/09. This investigation was closed with basically no action taken at all. Just because nobody has died, or been reported injured, doesn't mean this issue is not a safety issue.

68 Headlights problem

Failure Date: 09/14/2012

The contact owns a 2004 Mercury Grand Marquis. The contact stated that the head lights failed. The contact attempted to turn them back on but to no avail. The contact allowed the vehicle to sit inoperable for several hours, in which the headlights then became operable. The vehicle was taken not taken to a dealer or a mechanic for inspection. The vehicle was not repaired. The manufacturer was not notified. The failure mileage was 75,000.

69 Headlights problem

Failure Date: 09/10/2012

The contact owns a 2004 Mercury Grand Marquis. The contact stated that the high and low beam headlights became overheated and failed. The vehicle was not taken to a mechanic and was not repaired. The failure mileage was unknown and the current mileage was 125,000.

70 Headlights problem

Failure Date: 07/28/2012

My mother-in-law has a 2004 Grand Marquis & last night when she started the car to go home after visiting us, the headlights would not come on at all. . . . Additionally, the interior lights have come on all by themselves intermittently, and consequently, the battery is drained each time it happens. The interior problem may or may not fix itself by starting/shutting off/opening/closing door. All I did was type "2004 Mercury Grand Marquis" in yahoo search & a multitude of similar problems came up in the results: all stating a defective light control module (lcm). I am going to take the one out of her car today & take it apart & inspect it for cracked ("cold solder") solder joints as almost anything with a pc board ( (made in the last 25 years especially) tends to develop cracked solder because they are made cheaply by using as little solder possible to hold the joint together (when new, anyways) . Yet another cheap, modern junk electronic item pumped out in bulk by the thousands that the manufacturer will not support, unless it fails within the warranty period! I cannot believe Ford motor company won't issue a recall for this problem as it is not an isolated problem, according to my research! maybe once someone dies in a car wreck from the lights going out while they're going down a freeway @ 70mph, someone will get a good lawyer and sue the pants off of Ford motor company!! class action lawsuit, anybody?.



Fuel Economy of Grand Marquis Vehicles
Grand Marquis Service Bulletins
Grand Marquis Safety Recalls
Grand Marquis Defect Investigations