really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
2 / 0
Average Mileage:
76,050 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Mercury Grand Marquis lights problems

lights problem

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2004 Mercury Grand Marquis Owner Comments (Page 4 of 8)

« Read the previous 20 complaints

problem #92

Jun 022014

Grand Marquis

  • 144,000 miles


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.

- Westland, MI, USA

problem #91

Feb 092014

Grand Marquis 8-cyl

  • 118,258 miles
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.

- Sault Ste. Marie, MI, USA

problem #90

Feb 012013

Grand Marquis

  • 54,000 miles
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.

- Austin, TX, USA

problem #89

Apr 082010

Grand Marquis 8-cyl

  • miles


I have paid over 500 bucks the first time for the lighting control module. I had my headlights cut off on me while I was driving one day more than 3 years ago. I had tommy vaghun in houston tx repair it. Now I have the same problem again. This is a part that is very expenisve to repair. I have no clue what the problem is that makes this happen. This is a vehicle safety issue with no doubt. This should be a problem that Ford pays for the repairs. I can not drive anywhere at night with out the lights turning off. I have to hold the flash to pass to have headlights.

- Austin, TX, USA

problem #88

Apr 232014

Grand Marquis 8-cyl

  • 126,000 miles
While driving in the evening on an unlit road with my 10yr old in the car my headlights just 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.

- North Olmsted, OH, USA

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problem #87

Mar 262014

Grand Marquis 8-cyl

  • 58,000 miles
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. Updated 06/10/14

- Huntingdon Valley, PA, USA

problem #86

Feb 192014

Grand Marquis 8-cyl

  • 143,687 miles


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.

- Jonesboro, AR, USA

problem #85

Sep 162013

Grand Marquis 8-cyl

  • 82,000 miles
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.

- Lake Charles, LA, USA

problem #84

Oct 012013

Grand Marquis

  • 72,000 miles
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.

- Buna, TX, USA

problem #83

Apr 162013

Grand Marquis 8-cyl

  • 70,000 miles
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-

- Madera, CA, USA

problem #82

Feb 222014

Grand Marquis

  • 56,412 miles


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.

- Nashville, TN, USA

problem #81

Jun 132013

Grand Marquis 8-cyl

  • 71,850 miles
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 home. 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 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 sympathetic 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.

- Columbia, SC, USA

problem #80

Jan 042014

Grand Marquis 8-cyl

  • 70,083 miles
We were driving on rte 202 in chalfont, pa and turned onto rte 152 heading South. While driving along an unlit part of the road, the headlights went out. The switch was not working to turn on or off. I went off the road but was able to recover safely. I turned the car around and headed home. Lights came on and off again in about 3 minutes. Lights continue to go off randomly when car is driven at night time.

- Doylestown, PA, USA

problem #79

Dec 092013

Grand Marquis 8-cyl

  • 66,000 miles
I was driving on the interstate when the headlights went off suddenly. The only way I could get lights was by holding the dimmer switch toward me on bright. Then it would suddenly click back on and then go off again. It was very scary. After looking this up on the internet this same safety issue has been reported numerous times with the exact same complaint. This is very dangerous.

- Curtice, OH, USA

problem #78

Nov 012013

Grand Marquis 8-cyl

  • 97,850 miles
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.

- Frederick, MD, USA

problem #77

Nov 042013

Grand Marquis

  • 105,000 miles
I was traveling down the highway at 55 when I noticed my headlights were not reflecting off the road signs. I pulled over and checked my lights and noticed I only had parking lights not headlights at all. I got back in the car and tried the light switch but nothing came on. I had to have the car towed and was told the lcm lighting control module has failed. At a cost of 400 dollars. Safety hazard Ford knows about but is doing nothing about it.

- Bristol, RI, USA

problem #76

Sep 022013

Grand Marquis 8-cyl

  • 124,500 miles
I was driving southbound on route 95 from baltimore to Washington at night. While driving, my headlights suddenly went out. I normally keep the headlights set on the automatic mode. When the headlights went out, I turned the headlight dial on the dash to each of the positions without being able to reilluminate the headlights. I noticed that when I pulled the turn signal lever towards me, the high-beams would go on, but they would not go on when the lever was pushed away from me to keep the high beams on while freeing my hands. I therefore had to drive for approximately 20 miles while keeping the highbeams activated with my left hand. This posed problems when I needed to turn the wheel. I brought the car to my local Ford dealership, jerry's Ford in annandale, Virginia. Even though I kept the car at the dealership for several days, they were unable to diagnose the problem because the headlights were properly functioning. The problem recurred while I was driving South on I-95, headed to New York, on October 6. at that time I lost the headlights and they remained out for well over one hour, requiring me to keep the high beams activated with my left hand while driving the car. I am now experiencing the problem on nearly a daily basis. I make short trips to the grocery store, less than a mile from my house, at night, and invariably lose the headlights while driving home. One time I was able to restore the headlights by turning the dial on the dash to the manual position (far right). At other times, this does not work.

- Annandale, VA, USA

problem #75

Oct 042013

Grand Marquis

  • 104,532 miles
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.

- Whitman, MA, USA

problem #74

Aug 222013

Grand Marquis 8-cyl

  • 48,031 miles
While driving pa turnpike headlights cut off with no warning or any"flickering",replace, bulbs & fuses. Didn't help.. the headlights would not work on auto or manual. The only way we were able to safely get off highway was holding bright lite switch forward. This issue has made recalls of "certain models and certain, but not mine"?? why aren't marquis and crown vic, that are"outside" the recall car list, that have the same problem included???is it because not enough people injured or died?? so I'm stuck with a car I can only drive during the day !!! wth? I live on disability and was told it was a thousand dollar repair... why wouldn't Mercury consider cars "outside" the recall years be treated like they were part of the recall, since all the symptoms are the same?" the dealer made me feel like I was trying to rip him off or scam him. The headlights cut off and back on at their discretion.. I don't fell safe driving my, fairly low mileage car(well maintained).don't believe I'll be driving Ford products after this. If Ford would at least help those of us out here, by making the lcm sold to us at a free/at cost, pricing !I feel that would be fair. I'm sure many cars not having this problem don't need "recalled". I would have thought Ford would be honest enough to stand by their products, and address this safety issue?! mail me one and I'll put it in...thank you

- Toledo, OH, USA

problem #73

Sep 182013

Grand Marquis 8-cyl

  • Automatic transmission
  • 66,000 miles
The contact owns a 2004 Mercury Grand Marquis. The contact stated that while completing a turn, the vehicle exhibited an abnormal grinding. The vehicle was taken to an independent mechanic for diagnosis where it was stated that the pin bearing needed to be replaced. The vehicle was repaired and the manufacturer was notified. The approximate failure mileage was 66,000....updated 12/03/13 the consumer stated the vehicle's lights turn off at night, as well. Updated 12/6/2013

- Massillon, OH, USA

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