really awful
Crashes / Fires:
4 / 2
Injuries / Deaths:
2 / 0
Average Mileage:
67,003 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.

2005 Mercury Grand Marquis electrical problems

electrical problem

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2005 Mercury Grand Marquis Owner Comments (Page 1 of 4)

problem #61

Jan 192016

Grand Marquis

  • 75,000 miles


Jan 19, 2016, letter said I would be notified as soon as corrective part became available. This has been over 6 1/2 months. As I'm planning on taking an extended trip, much of it at night, in the near future, I'm concerned my headlights will suddenly go out. Please goad them to get on the ball and provide a repair.

- Largo, FL, USA

problem #60

Feb 122016

Grand Marquis

  • 42,992 miles
I purchased the vehicle as a used vehicle with 42900 miles. The vehicle has no history of an accident on the carfax report. The airbag light came on and the repair ended up costing over $1000 because new sensors had to be installed for the seat belt assemblies. The automobile mechanic said this is common for 2005 Ford automobiles. Why hasn't Ford issued a recall to correct the problem?

- Collinsville, VA, USA

problem #59

Nov 192015

Grand Marquis 8-cyl

  • 140,540 miles
I was traveling on northfield road in bedford heights Ohio and turned right on to the drive way that leads to walmart. The steering wheel snapped completely loose spinning around. I lost control of the steering and the car crashed into a curb before I could apply the brakes. This occurred approximately an hour after I picked up my car from Liberty Ford dealership for repairs done in response to recall number 13S08 - steering column shaft and customer satisfaction program number - 14N01. (lighting control module).

- Cleveland, OH, USA

problem #58

Oct 062015

Grand Marquis

  • 52,000 miles


Heater blend door actuator stuck no heat or defrost.

- Downers Grove, IL, USA

problem #57

Jul 192015

Grand Marquis

  • 48,000 miles
Heater/ac damper control actuator is not working.

- Downers Grove, IL, USA

problem #56

Apr 242015

Grand Marquis 8-cyl

  • 48,000 miles
As I was driving at night, my vehicle's low and high beams (lights) suddenly cut off. Unexpectedly, the road I was traveling became very dark because I live in rural areas in West Virginia. Unfortunately, a second later, my car ran over a small boulder on the side on the road causing a damage (small cracks) at the bottom right hand side of my bumper. Nevertheless, I put the emergency lights on until I returned home right away. Earlier this week, I used the car again without any lights issues. However a day later, the issue returned again. This time I was traveling in the highway at 60 miles per hour. All low/high beam lights cut off. My only solution was to hold the "flash to pass" lever towards me, and the high beam lights would turn on. However, it is extremely cumbersome driving this way. I've been told by many mechanics that the main culprit is the lighting control module (lcm) and this safety issue has become extremely common in Grand Marquis especially 2005 models. Consumers and perhaps the government may need to further intervene, so Ford can do something about this safety/hazardous. In my case, my bottom bumper suffered, but it could have been worse - it could easily cause an accident at any given time. Currently, I only use my vehicle during the daylight hours. I've been told that repairs can exceed $700 or more and in some instances, the issue returns within a few months after replacing this part. This electrical issue should perhaps be further investigated as the lcm could be the main culprit, but something else could also be triggering the lcm to fail. Thank you greatly!

- Inwood, WV, USA

problem #55

Mar 242015

Grand Marquis

  • 77,250 miles


I was driving along on a back country road with no moon or visible lights of any kind at 55mph when I lost all headlights, low beam and high beam did not work.

- West Palm Beach, FL, USA

problem #54

Mar 062015

Grand Marquis 8-cyl

  • 100,000 miles
Driving home on highway at approximately 65 mph. Heard a click sound but did not relate it to lights immediately. It was just approaching twilight. I guess we did not immediately notice the lights as there was still some daylight. Next night driving in town after dark and the lights went out, just sudden darkness. We were on business hwy 23 going over the overpass in town and were able to get off on a side street and limp home hoping that we would not get stopped and cited. This is my vehicle that I use for my work. I now have to schedule my work around daylight hours as we can not find the light module to replace mine. This is a horrible danger to myself, my family and other drivers as well. We have called multiple places to find the module and they all say they can not get them. The most frightening of all, we have never been sent a recall notice on this. We are going to try a garage that services all the state patrol and police cars in this part of Wisconsin. There are still some of the Mercury's out there in service. I suspect they will surely supply them with the modules. Hope to find one there so I can resume normal work hours and not have to schedule daylight only work meetings. I have loved this car for 8 years. Would hate to have to give it up for something like this but the fact that Mercury does not respond is upsetting to say the least.

- North Fond Du Lac, WI, USA

problem #53

Nov 062014

Grand Marquis 8-cyl

  • Automatic transmission
  • miles
2005 Mercury Grand Marquis. Consumer writes in regards to the lighting control module issues. The consumer stated failure of the lighting control module, cause the headlights to go out without warning. The only way to turn them back on, was to reach under the dashboard and tap the affected module which worked sometimes and sometimes it didn't. the part was ordered on November 6, 2014. However, the dealer had no idea when the ship would be for the part.

- Marietta, GA, USA

problem #52

Mar 052015

Grand Marquis 8-cyl

  • 49,357 miles
Cannot shut lights off when I shut off the car. When I turn them on the sometimes work and sometimes don't. riding down the hwy they just go off. I have been stopped by the police. Drivers window works sometimes and does nor at other times. Buttons for the passenger seat also works whenever it wants to.

- Waxhaw, NC, USA

problem #51

Feb 122014

Grand Marquis

  • miles


My headlights will not come on at times or just come on for a couple of minutes and then they gone. I have gotten so many tickets for driving with my high beams and it's seem like the manufacturer don't care at all.

- Alexandria, VA, USA

problem #50

Dec 292014

Grand Marquis

  • 40,000 miles
Started vehicle to move it in my driveway. Put it in drive and throttle stuck open and vehicle slammed my garage corner. Tried putting it in park and it went into reverse (brake override did not work) instead and crossed street, went across neighbors landscaping stones and slammed into the house next door's front porch at which time the ignition shut down and the car came to a stop. Many thousands of dollars in damages to all three homes.

- Mckinney, TX, USA

problem #49

Oct 222014

Grand Marquis 8-cyl

  • 110,125 miles
Headlights went out. I received a notice from Ford in April of 2014 there was an electrical/lights problem and they would repair if owner actually had this problem. I had no problem until Oct 2014. Went to my dealer quick lane/Ford in topeka, ks. They reported that part has been on back order since may of 2014. Contact another Ford dealer who reported same. Light have regularly gone off since that time. What is a reasonable time to expect that they would have correct parts to replace as neither dealer had any report as to when part might come. VIN: [xxx] field service action number: 14N01 fsa title: Extended warranty coverage on lighting control module. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Topeka, KS, USA

problem #48

Aug 182014

Grand Marquis 8-cyl

  • 84,200 miles
Failed lamp control module, headlights fail to work, only high beams work when lever is held in flash position. Ford issued an extended warranty program 14no1 in the spring of 2104 for just this part for 15 years or 250,000 miles. No replacement parts are available in the usa. The dealer says they have a waiting list that goes back six months. Have talked to regional managers in dearborn, mich. All say they have no idea of a shipping date, much less a delivery date, from supplier. Won't indicate how many vehicles are effected, but has to be many due to extended warranty program. Their solution is if the lights don't come on or go out while driving is to hit under the dash to the right of the steering column and they should come on. This means there are cars on the road that people are driving during daylight hours knowing that their cars headlights are not working correctly, but no parts available from Ford to honor warranty. This means that cars are being used that may not be legal to drive in the rain (most states have headlight on if raining law) and also will not pass state inspection. I understand that parts are not always readily available, but should be available in several days. If this is a known problem, why are there no parts? no other help or loaner vehicle program is available.

- Mechanicville, VA, USA

problem #47

Aug 082014

Grand Marquis 6-cyl

  • 115,000 miles
Lighting control module intermittently not working. Not reliable for evening travel. Part on back order from Ford dealer with no estimated delivery date - I was told anytime from 1 week up to one month. Will need to rent a vehicle. What compensation for car rental do you offer due to the fact there is no estimated delivery date for this part?

- North Truro, MA, USA

problem #46

Jun 102014

Grand Marquis 8-cyl

  • 90,000 miles
June 10 while driving 65 miles per hour my lights failed. I was fortunate there was no accident. Took car to Ford dealership and was advised it was the light module. Dealership advised that Ford acknowledged this was a faulty part and the warranty on said part had been extended for 15 years. The local dealership ordered the part 45 days ago but has not been received. I personally called Ford's customer service several times but Ford still cannot give me an estimated date the part will be received. This same dealership has worked on my car several times but no one mentioned the defective module. This could easily lead toe death and destruction. Your help in resolving this matter would be appreciated. My case #with Ford is [xxx] I ran google search and this is a very serious problem and many people are not aware of it. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- San Angelo, TX, USA

problem #45

Oct 192013

Grand Marquis 8-cyl

  • 50,000 miles
High and low beam headlights failed while driving at high speed on dark 2 lane highway in upstate NY. Fumbled with light controls until by random chance discovered that by holding "flash to pass" stalk back, high beams could be activated. Made it home steering with the right hand and holding flash to pass with left, blinding oncoming drivers with the high beams all the way. This is an intermittent problem in the lighting control module (lcm) that can sometimes be cured by kicking the lcm, which is located under the dashboard above the accelerator pedal. Hard to do at night, on a dark road, at high speed, in traffic, while holding the flash to pass stalk with the left hand and steering with the right hand. This intermittent light failure occurred again the week of May 25, 2014. This vehicle should not be driven at night and should be recalled immediately before someone gets killed.

- Fairport, NY, USA

problem #44

Apr 212014

Grand Marquis 8-cyl

  • Automatic transmission
  • miles
The contact owns a 2005 Mercury Grand Marquis. The contact received a notice for a manufacturer's recall and was informed that the part could not be replaced if he was not experiencing a failure but felt that it should be replaced before a failure occurred. The manufacturer was notified of the issue. The contact had not experienced a failure. Updated 7/22/14

- Morgan Town, KY, USA

problem #43

Apr 012014

Grand Marquis 8-cyl

  • 75,000 miles
My head lights started giving me this problems on April 1 2014 they won't stay on so I have to hold my high beam switch so I can drive using my high beams sometimes my headlights do cone on but very rarely I have read blogs and I'm not the only one having this problems.

- San Bernardino, CA, USA

problem #42

Mar 112014

Grand Marquis

  • 80,000 miles
The headlights will suddenly go off and won't come back on. Eventually, the lights will come back only to go off again. I searched the internet and found numerous instances of this happening to this make and model yet, there is no recall.

- Edgerton, WI, USA

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