NHTSA — Electrical System Problems

10.0

really awful
Crashes / Fires:
4 / 2
Injuries / Deaths:
2 / 0
Average Mileage:
62,698 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 #69

Apr 012018

Grand Marquis

  • miles

A D V E R T I S E M E N T S

Neither the air conditioner nor the cruise has worked since 46,000 miles. It needs a new air compressor which would cost over $1,000 and there are several other complaints for this issue plastered all over the internet.

- Paulsboro, NJ, USA

problem #68

Jan 072020

Grand Marquis

  • miles
I purchased a 05 Mercury Grand Marquis and had issues with the headlights going out while driving at night. I seen that there was a recall on this issue for my vehicle but when I called the Ford dealer they said my car wasn't registered for a recall. They said I would have to pay $135 for a diagnostic test and leave my car for 24 hours. No one was able to inform me why my specific vehicle was excluded from the recall. If I'm telling them that I'm having a problem that they clearly know about why are they charging me to fix it?

- Jonesboro, GA, USA

problem #67

May 012019

Grand Marquis

  • 130,000 miles
The contact owns a 2005 Mercury Grand Marquis. While driving approximately 60 mph, the exterior lighting, dome light, and all other lighting turned off without warning. The vehicle was taken to inver grove Ford Lincoln (800-730-1765, located at 4725 S robert trail, inver grove heights, mn 55077) to be diagnosed, but the technician was unable to schedule an appointment right away. The vehicle was taken to an independent mechanic who changed all the fuses, but the failure recurred. The contact called hastings automotive at 651-437-4030 (located at 3625 vermillion St, hastings, mn 55033) and scheduled an appointment. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 130,000.

- Cottage Grove, MN, USA

problem #66

Apr 012018

Grand Marquis

  • miles

A D V E R T I S E M E N T S

This not my vehicle. This is a vehicle I found for sale on autotrader.

- Hondo, TX, USA

problem #65

Oct 022017

Grand Marquis

  • 109,000 miles
The contact owns a 2005 Mercury Grand Marquis. After the vehicle was repaired per NHTSA campaign number: 15V861000 (exterior lighting), the tail lights failed to operate when the headlights were turned from "automatic" to "on". the headlights worked, but the tail lights did not unless the brakes were being applied. Leon riley Ford in benton, ky (99 main St.) was notified and contacted the manufacturer about payment for the repairs. The manufacturer stated that nothing could be done. The VIN was unknown. The failure mileage was approximately 109,000.

- Hickory, KY, USA

problem #64

Apr 212014

Grand Marquis

  • miles
The contact owns a 2005 Mercury Grand Marquis. The contact received a recall repair from a dealer (court street Ford, 558 william R latham senior dr, bourbonnais, il 60914, (815) 939-9600) for NHTSA campaign number: 15V861000 (exterior lighting). Six months after the repair, the lights failed to function for the low beams, high beams, and day time running lights intermittently. The dealer was informed several times, but they were unable to replicate and diagnose the failure. The contact felt as if the remedy failed to provide a solution. The dealer indicated that the part needed to be replaced again. The vehicle was serviced by an independent mechanic to replace the part. The manufacturer was notified that the remedy for the recall failed to provide a solution and also indicated that the part still needed to be replaced after the repair. The failure mileage was not available.

- Bourbonnais, IL, USA

problem #63

Aug 072015

Grand Marquis

  • miles

A D V E R T I S E M E N T S

Previously shows an open recall from Dec. 2016 for cracking solder on headlights going into the circuit board. Needs a solution to correct safety issue.

- Spring Hill, FL, USA

problem #62

Jun 212017

Grand Marquis

  • miles
Vehicle at times with my foot on the brake pedal, just starts to accelerate for no reason when I stop a light or in traffic.

- Brooklyn, NY, USA

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

A D V E R T I S E M E N T S

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

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