Headlights would not come on in the manual or automatic light switch mode. The only way to have headlights on is to hold high beam lever in the "flash more"( lever pulled toward driver). I found after a while if I kick my foot above the accelerator, the lights would come on and stay on for an undetermined time. Further diagnosis indicates a poor connection by moving one of the modules connectors.

- Garden City, MI, USA

Luckily I am driving home from work around 1230am on an interstate with moderate traffic. The headlights just go off without any warning. After some very close calls and not just a few upset drivers, I did manage to get off the road and onto the side. I discovered that I could hold the signal handle back I had high beam lights that let me get home. I have maintenance records on this car since it's first oil change at 3000 miles, the auto is well taken care of. I do not understand why Ford would not take the responsibility for this as from what I have already read, it is a very common problem, I guess not enough people have died from it yet.

- St. Albans, WV, USA

Turned on headlights they did not come on but if you pull back on turn signal high beam works when held in position.

- Dayton, TN, USA

The contact owns a 2003 Mercury Grand Marquis. The contact stated that while traveling 50 mph, both headlights failed. The contact was able to merge to the side of the road to restart the vehicle but to no avail. The vehicle was able to be driven to the contact's residence and was later taken to a dealer where it was determined that the light control module had failed. The vehicle was not repaired. The manufacturer was contacted about the issue. The failure mileage was 93,000 and the current mileage was 96,000.

- Nelliston, NY, USA

The headlights on low beam would not come on - could only drive at night while holding the high beam light on. Being told it is the lcm and has to be replaced at a high repair cost. After much research about this problem, Ford should be paying for these repairs and not the consumer!

- Benton, AR, USA

The contact owns a 2003 Mercury Grand Marquis. The contact stated that while driving approximately 40 mph the headlights shut off without warning. The lights came on a few minutes after they shut off. The failure recurred frequently. After some time the headlights no longer illuminated. The vehicle was taken to an independent mechanic who diagnose that the automatic light control module failed and needed to be repaired. The VIN was not available. The vehicle was not repaired. The approximate failure mileage was 90,000.

- Bentonville, AR, USA

The contact owns a 2003 Mercury Grand Marquis. The contact stated that the headlights failed. The vehicle was not taken to the dealer. The manufacturer was made aware of the failure who did not offer any assistance since the vehicle was not included in any recalls. The vehicle was repaired. The failure mileage was 40,000 and the current mileage was 79,995.

- Chillicothe, OH, USA

The contact owns a 2003 Mercury Grand Marquis. While parked, the contact noticed that the headlights were not illuminated. The failure recurred intermittently. The vehicle was not taken to the dealer for diagnostics. The vehicle was not repaired. The approximate failure mileage was 55,000. The VIN was not available.

- Miramar Beach , FL, USA

While driving at night at a speed of 40 mph, my head lights shut off while on auto. I tried switching to manual lights and this did not work either.

- Woonsocket, RI, USA

The contact owns a 2003 Mercury Grand Marquis. The contact stated that while driving 20 mph, the headlights failed and could not be turned back on. The vehicle was not taken to the dealer and the manufacturer was not contacted. The failure mileage was 180,000. The current mileage was 186,000.

- Louisville , KY, USA

The contact owns a 2003 Mercury Grand Marquis. The contact stated the external headlights became inoperable without warning. The manufacturer was notified, but denied any assistance with repairing the vehicle. The dealer was not notified of the failure. The vehicle was not repaired. The failure mileage was 78,000 and the current mileage was 85,000.

- Newport News, VA, USA

2003 Mercury Grand Marquis..this is a loaner car while my F-150 was in the shop. I used the car for work that morning. Lights worked fine, but I needed to use my trailor the next day so my wife was going to use the car for work the next day so I could use our Explorer to pull the trailor. The car needed gas and it was dark out. We went to go for gas and when I started it the parking lights worked but the headlights would not. I pushed the turn signal lever forward and the brights didn't either. I checked the fuses and could not find one bad. It is going back to the Ford dealership. I would think from what I have read about this being an ongoing problem, there would of been a recall by now. I'm just glad it didn't happen to my wife on her way to work, it was foggy and dark that morning.

- Kewanee, IL, USA

The contact owns a 2003 Mercury Grand Marquis. The contact stated that the exterior front headlights would fail sporadically and without warning. The contact would have to keep the high beam headlights activated at all times in order to see properly at night. A local mechanic repaired the failure numerous times, but the failure would recur. The dealer was in the process of replacing the manual light switch and the fuses. The vehicle was in the process of repair. The manufacturer was not contacted. The failure and current mileage was approximately 109,000. The VIN was unavailable.

- Tapica, KS, USA

I'm now 3 for 3 failures with the lighting control module on model and year car. Initial failure mileage was 74000, current mileage 75500. Intermittant lighting failures. Problem is now so bad car can not be driven more than 10-15 minutes at night before lights fail to illuminate. I've replaced the lcm on one 2003 crown vic, one 2003 merc, and now our other 2003 merc. Other night, I almost hit deer A/C I had no lights! this vehicle has not yet been repaired, but must be soon, as problem has been escallating. As junk yards are out of parts locally (I do not use part 3W7T-13C788-ah as that is the defective one! I use ag - everything will work but map lights and this lcm will not fail.) I will have to likely get one out of the area. So, my experience on this vehicle/year is 100% part failure. Somehow, I think my sample size of 3 is statistically significant!

- Valparaiso, IN, USA

The contact owns a 2003 Mercury Grand Marquis. The contact was driving approximately 70 mph with the headlights activated and unexpectedly the headlights failed to illuminate. Immediately, the high beam headlights were engaged and the vehicle was maneuvered to the side of the road. The contact turned the engine off and restarted. The headlight control device was turned manually while driving in order for the low beam headlights to operate. The failure occurred intermittently. The vehicle had not been diagnosed or repaired. There was an open investigation associated with NHTSA action number PE08066 (exterior lighting: Headlights) which was closed in March 24, 2009. The manufacturer was notified of the malfunction. The approximate failure mileage was 120,000.

- Sulphur Springs, TX, USA

The contact owns a 2003 Mercury Grand Marquis. The contact as driving 70 mph when the head lights failed without warning. The contact mentioned that the failure would occur sporadically and the lights would re-illuminate after several moments. The vehicle was not taken to the dealer. The manufacturer was made aware of the failure who did not offer any assistance. The vehicle was not repaired. The failure mileage was 55,000 and the current mileage was 83,000.

- Brunswick , GA, USA

Head lights when off. I turned them to the auto setting and they would work for a short time and go off. Then they wouldn't work no mater were you set them. Wiper came on by themselves and I had to pull the fuse to stop them, when I needed the wipers I have to replace the fuse. Then when I try to turn them off they stop in the drivers view if they stop at all. Sometimes they would work right and then not at all. The wiper water pump would not work either. Now it's working again.

- Sulphur Springs, TX, USA

The head lights will turn off while driving. They will then go back on after an indeterminate period of time. It makes no difference whether the light control switch on the dash is on automatic or not. This may happen any number of times even during a short trip. The problem is the lighting control module for which Ford has a newly designed part, but no recall or service bulletin. Needless to say it is an obvious safety issue to have your lights go out and lose all forward visibility, especially on a rainy night. I don't understand why there has not been a recall on such an obvious safety hazard.

- Ijamsville, MD, USA

While driving at dusk on my way home (with my 5 year old little girl!), my headlights shut off without warning! we were fortunate that several drivers in the oncoming lane were concerned and conscientious and flashed their high beams to signal that something was wrong. Deductively, I ruled out my lights being off because the switch was on. That was until the traffic light turned red and I saw no reflection on the back of the car in front of me! I flipped the switch off then back on again to see if it was a bad connection in the switch or perhaps it was between positions and would possibly work if I repositioned it. No good! ugh, the light went green! I nervously pulled at the bright light selector to see if they worked! just in time to barely miss the SUV that obviously did not see us!!! I did not let it go until we were safe at home!!! phew!!! I guess now would be the time to change my pants!

- Plainview , NY, USA

The headlights go out, apparently the lcm module has failed. They will come back on intermittently. When the lights are out the driver has to hold the high beam switch for lighting. Ford ought to voluntarily replace the lcm modules.

- Fowlerville, MI, USA