The contact owns a 2003 Mercury Grand Marquis. The contact stated that while driving at an undisclosed speed, the front driver-??s and passenger-??s side headlights failed. As a result, the contact engaged the high beam headlights to continue driving. The vehicle was not diagnosed or repaired. Neither the dealer nor the manufacturer was notified of the failure. The failure mileage was approximately 71,000.

- Dumont, NJ, USA

The contact owns a 2003 Mercury Grand Marquis. While driving 30 mph, the headlights went out and turned back on intermittently. The vehicle was not diagnosed or repaired. The manufacturer and dealer were not notified of the failure. The failure mileage was approximately 156,000.

- Port St. Lucie, FL, USA

2003 Mercury Grand Marquis. Consumer writes in regards to vehicle headlights malfunction. The consumer stated while driving at night on a dark road, the headlights went out. The lights would normally come on automatically by a sensor when it was dark. The consumer stated he was unable to turn them on manually. The cost to repair the problem was $781.74, in which only the dealer could repair. The consumer stated a sensor went bad.

- Allison Park, PA, USA

The contact owns a 2003 Mercury Grand Marquis. The contact was driving 55 mph when the headlights failed. The contact had to pull to the side of the road and attempted to get the lights to function properly but to no avail. She was able to get the high beams to work by holding the wand in the flash to pass mode. The vehicle was taken to a personal mechanic for diagnosis and the contact was informed that the light control module would need replacing. The manufacturer was notified but offered no assistance. The vehicle had not been repaired. The failure and the current mileages were 42,000.....updated 10/11/12 updated 10/15/2012

- Scarsdale, NY, USA

2003 merc marquis low beam lights went out at 60mph unlit rural road. Almost crashed had I not raised high beam lever on steering column. Low beam operates intermittently. Diagnosed as electronic control module failure. Estimated repair cost $700. If no recall, someone will die.

- Valparaiso, FL, USA

I own a 2003 Mercury Grand Marquis and the headlights will randomly decide to work or not work. Most times they work for 3-5 minutes and then just go out.. the running lights and turn signals still work. The only way to see is to manually hold the high beam light in position while driving.

- Slidell, LA, USA

The contact owns a 2003 Mercury Grand Marquis. The contact stated that the headlights on the vehicle were extremely dim and for approximately one year. The failure progressed to where the headlights would illuminate and then fail altogether intermittently. The vehicle was taken for diagnosis and the mechanic determined that the light control module was defective and would need replacing. The vehicle was not repaired. The failure mileage was approximately 60,000 and the current mileage was 84,000. Updated 03/15/11 the lighting control module was replaced. Updated 09/19/11

- Jacksonville, FL, USA

The contact owns a 2003 Mercury Grand Marquis. The contact stated the headlights would shut off without warning. The contact stated he was advised by a certified mechanic that the light control module was defective and causing the failure. The vehicle was not repaired. The failure mileage was 58,000 and the current mileage was 58,500.

- Providence, RI, USA

The contact owns a 2003 Mercury Grand Marquis. The contact stated that while driving, the headlights suddenly turned off. The lights on the instrument panel stayed lit but the headlights and high beams turned off completely. The vehicle was taken to a repair shop where a module located inside a black box near the accelerator pedal was replaced. The current and failure mileages were approximately 45,000.

- Clarksborrough, NJ, USA

The contact owns a 2003 Mercury Grand Marquis. While driving at approximately 45 mph, the headlights suddenly turned off. He pulled over and after a minute, the headlights turned back on. They continued to flicker while driving; however, the lights would not come back on after he reached his destination. He took the vehicle to the dealer who stated that the lighting control module was the cause of the failure. The vehicle had not been repaired to-date. He had not spoken with the manufacturer to-date. The current mileage was 85,652. The failure mileage was approximately 85,550.

- Twin Falls, ID, USA

The contact owns a 2003 Mercury Grand Marquis. While driving 60 mph at night without a warning the headlights shut off. All of the lights other than the headlights were operating normally. The failure has occurred approximately 10 times. A local service garage stated that the lighting control module caused the failure. The headlights have not been repaired. The failure mileage was 73429 and the current mileage was 75276. Updated 03/12/10. Updated 09/21/10

- Mansfield, OH, USA

The contact owns a 2003 Mercury Grand Marquis. The contact stated that the headlights shut off while driving approximately 35 mph. The length of time that the lights remain off varies. The parking lights stay on and the signal lights work; however, the headlights remain off. The current mileage was 124,909. Updated 03/01/10. Updated 05/13/10.

- Garland, TX, USA

The contact owns a 2003 Mercury Grand Marquis. The contact stated that the headlights module failed. While driving approximately 45 mph at night the headlights shut off and caused the driver to hit a deer. The front end was damaged. The dealer advised the contact to report the failure to the manufacturer. There were no related recalls on the headlights. The failure mileage was 110,000.

- Los Fresnos , TX, USA

The contact owns a 2003 Mercury Grand Marquis. The head-lights intermittently fail. The vehicle was taken to the dealer and they installed a lighting control modular at an expense of $900. She attempted to contact the manufacturer, but was not able to speak with a representative. The failure mileage was 69,000.

- Fredericksburg, VA, USA

The contact owns a 2003 Mercury Grand Marquis. The headlights fail intermittently, and he was unable to turn them on manually. The only way to turn the headlights on was to activate the high beams, or restart the vehicle. The manufacturer was aware of the problem, but has not issued a recall.the current mileage was 79,000. The failure mileage was 75,000.

- Liberty, MO, USA

2003 Mercury Grand Marquis. Headlamp failure. Apparent cause is failure of lighting module "black box" with defective soldering. Box is apparently not protected by fuses. Cost of box is $499. Plus installation costs and taxes.

- Canoga Park, CA, USA

Headlights stop working when car warms up. Cannot drive car after dark due to this. I can pull over, turn ignition off, let car cool a bit and then restart and lights will work for a short time. I have checked all fuses and relays associated with headlights and all are good.

- Centerville, GA, USA

Electrical issue with headlights, instrument lights, flashers/ repaired with Goodyear vendor/ ran separate ground for headlights./headlights don't function with wet weather...

- Homer Glen, IL, USA