Three problems related to brake light have been reported for the 2004 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Mercury Grand Marquis based on all problems reported for the 2004 Grand Marquis.
The contact owns a 2004 Mercury Grand Marquis. The contact stated that while driving at an undisclosed speed, the headlights and brake lights were inoperable. The vehicle was taken to an independent mechanic who diagnosed that the headlight control module switch needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 164,000.
Jan. 2016-I received a letter from Ford motor company saying there is a recall 15s39 and when parts are available Ford will let me know and the part will be replaced. April 2017 _ I receive a letter from Ford saying parts are available, schedule an appointment. Called flood Ford and Lincoln in narragansett ri was told I had to first have them determine if a part was needed, then I would have to return to have the part replaced if needed. When the car was taken in to have it reviewed the vehicle did not enter the service area at all. I was asked to go outside into the parking lot of the dealership with the clerk from the counter from service department. I was told to get into my car --start it -- and apply the brake. We were in the parking lot of the dealership and the vehicle in park although ignition was on. I applied the brake as asked, then I was told, the brake lights are fine I don't need the part for the recall. I was all set and ok to leave. The recall 15s39 has nothing to do with the brakes so clearly this dealership does not service their customers correctly. I had both letters from Jan 2016 and April 2017 that showed it was for the headlights. I'm filing a complaint that this dealership did not perform the work they should have. How can I get the lighting control module (lcm) replaced on my vehicle? the lcm is the part for the 15s39 recall. When there is a recall for a part, is the manufacturer required to replace the part or can they say it is not needed? thank you for your time.
The headlights do not stay on. The lights may or may not go on initially but can go out at any time making driving hazardous. The only way to make them light is to hold the handle in the "bright light" position. " I have contacted Ford with the problem and several dealers to no avail. This has been happening for approximately a year. A related problem seems to be that the air conditioner blower stopped working and the brake light stays on all the time. Judging from the complaints I have read on the internet, many people have all three problems at once.