The contact owns a 2005 Mercury Grand Marquis. The contact stated that the low beam headlights failed while driving at various speeds without warning. The contact was forced to drive with the high beams illuminated. The vehicle was not taken to the dealer for diagnostic testing. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 59,000 and the current mileage was 70,000.

- Waco, TX, USA

My wife drove the car a few miles, after dark, at night. The headlights were functioning fine. They made a brief stop and when they drove the car off and out of the lit parking lot, they discovered that the headlights would not come on in automatic mode or manual mode. The park lights worked and also the dash lights worked. It was not till they ran out of street lights before they discovered they had a problem. I got online and discovered that this is a common problem with Ford products of that model. It is a poor design and if the headlights go off at highway speeds, it could be dangerous. The part that usually fails is a dealer item that list for over $500. Ford has upgraded the new part, so they know that there is a problem.

- Texarkana, TX, USA

The contact owns a 2005 Mercury Grand Marquis. The contact stated that the low beam headlights failed while driving. The contact was forced to drive with the high beams illuminated. The vehicle was not taken to the dealer for diagnostic testing. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure and current mileage was 54,000. Updated 02/11/14 the control module was replaced. Updated 02/20/14

- Hometown , IL, USA

Lights went off while driving at night.

- Downers Grove, IL, USA

The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving at various speeds, the headlights failed suddenly. The dealer was contacted, who advised the contact that the headlight module possibly needed to be replaced. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 41,000 and the current mileage was 42,105. Updated 12/4/13

- South Hampton , NJ, USA

The contact owns a 2005 Mercury Grand Marquis. The contact stated the headlights would fail to illuminate intermittently. The vehicle was taken to an independent mechanic for diagnosis. The mechanic stated the lighting control module would have to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The approximate failure mileage was 52,900.

- Edison, FL, USA

While driving on the Massachusetts turnpike at night the headlights shut off with no warning, notice or anything. Never had this happen before. Scared us to death!!! we immediately turned the signal to pull over to the shoulder and then they came back on. About 2 minutes later they went off again. My boyfriend pulled over to the shoulder and turned on the hazard lights and shut the car off. We then turned the car back on and had no headlights, just marker lights. But, if you held the stick for the high beams you could use those. Then the lights miraculously clicked on and stayed on for the rest of the way home. This has been a continuous problem. After much research I have found out it is the lighting control module. Approximately a $650 part and about $200 for labor. I contacted Ford Motor Company and they do not feel that this is a safety issue and are going to do nothing about it!!! really!!!! I am part of a website and I get numerous emails for people that have the same problem. I am afraid to drive at night because I never know when the lights will work or not. I don't want to blind people driving behind them and it just really sucks that Ford does not think that driving down the road at night with no headlights is not a safety concern.... why doesn't the Ford executive try driving home in the dark with my car and see how he likes it. Then we will see if it is a safety issue or not, huh??

- Pittsfield, MA, USA

The contact owns a 2005 Mercury Grand Marquis. The contact stated that the headlights intermittently failed. The contact also mentioned that the air bag light illuminated. The vehicle was taken to the dealer where it was found that the headlight control module and seat belt retractor assembly needed to be replaced. The vehicle was being repaired. The manufacturer was contacted about the failure. The failure mileage was 58,000. Updated 10/17/13

- Milaca, MN, USA

The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving 10 mph, the headlights failed. The contact was able to gently shake the switch and the lights re-illuminated. The failure recurred numerous times. A dealer was notified and suggested that it could have been the headlight switch that was the cause of the failure. The vehicle was not repaired. The failure and current mileage was 79,100.

- Memphis, TN, USA

The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving 35 mph, the headlights failed. The vehicle was not repaired. The failure and current mileage was 161,000.

- Braselton, GA, USA

The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving approximately 55 mph, the headlights failed to illuminate upon activation. After several miles were driven, the headlights began to operate but the malfunction recurred whenever the headlights were activated. The vehicle was not repaired. The manufacturer was notified of the problem. The approximate failure mileage was 65,000.

- Colerain , NC, USA

The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving 45 mph, the headlights failed without warning. The vehicle was not repaired and the manufacturer was not notified. The approximate failure mileage was 48,000.

- Storrs Mansfield, CT, USA

Head lights were coming on and going off on their own, now will not come on. Faulty light control module!

- Jacksonville, FL, USA

While driving at night, the headlights suddenly go out. This is very dangerous, regardless of either driving on the highway or in the city (especially with pedestrians). They tend to stay out for 10-15 min before they start working again. While they are out, the brake lights go out at the same time, making it even more scarier, cant see to drive, and the car behind me cant see me slowing down or stopping, which increases the chances for an accident. Needs to be recalled asap. It appears that it is the lighting control module is faulty and the part itself is quite costly starting at $300 - $500 for the part itself or $800 installed.

- Walled Lake, MI, USA

The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving 45 mph, the headlights failed on two separate occasions. The vehicle was not repaired and the manufacturer was not notified. The approximate failure mileage was 75,000.

- Selma, NC, USA

The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving 45 mph, the headlights shut off independently and without warning. The contact had to use the high beam headlights in order to navigate the roadway. The vehicle was taken to a private mechanic however, the repairs needed were unknown. The manufacturer was notified of the failure. The vehicle was not repaired. The approximate failure mileage was 54,000 and the current mileage was 59,000.

- Virginia Beach , VA, USA

Head lamps go out or fail to come on.

- Harrisburg, NC, USA

I was returning home with my wife from a trip to charleston, SC, at about 10:00 pm, driving at 60 mph, when my headlights suddenly shut off. That happens in the vicinity of awendaw and there are no street lights in the area. Both my wife and I screamed in panic while I was trying to slow down the car and staying in my lane on the highway. I was thankful that the turn signals, marker lights and brake lights still worked, so any other cars would be able to see me. When I finally pulled up the side of the road without any mishaps, I inspected the car and found out that all the fuses were good. I then restarted the car and still did not get my headlights to come on. I played with the turn signal/ low beam/high beam lever and got the flashing high beam position to work, so I drove home to myrtle beach holding the flashing high beam lever up to light my way. Otherwise, I would have to hire a taxi, spend the night in the nearest hotel to wait for daylight to resume my trip home. Apparently, the problem with the headlights shutting off without warning while driving at night comes from the lighting control module installed the 2005 Mercury Grand Marquis that malfunctions when the cars reached an average mileage of 69,000 miles (some as early as 30,000 miles, up to 114,000 miles documented).

- Myrtle Beach, SC, USA

Headlights go off, tail lights and running lights stay on. After slamming door or slamming hood lights would sometimes come back on again for a while, then go on and off at random with light switch turned to "on". checked all fuses and relays I could access and all were ok. Has acted this was for three weeks now. It's dangerous to drive at night.

- Olathe, KS, USA

The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving 50 mph, the headlights shut off independently. The contact had to use the high beam headlights to navigate the roadway. The vehicle was taken to a dealer and the contact was advised that the light control module would possibly require replacing. The vehicle was taken to an independent mechanic where the head lamp switch was replaced. The failure recurred. The vehicle was not further repaired. The failure mileage was 48,000 and the current mileage was 50,000.

- Seaford , NY, USA