Mercury Grand Marquis warning lights comes on

Filed Mar 4, 2021 · 110,439 miles · TX

Will not start...many times over last 6months..security issue..was told no sound when turn on key--all lights on dash on as engine-air bag-check gas cap lights...but no sound...ignition coil repalced .battery frplaced spark plugs replaced tired reprogram keys....still does this..it may or may not start after turning steering hard ...I need my car handi cap senior 70yr

Filed Oct 24, 2014 · Lights · 57,000 miles · FL

Traveling southbound on I-95 in early morning all lights went out for a few seconds, leaving us in total darkness. Lights came back on and everything resumed as normal for remainder of our trip home. A couple of month later same thing happened during a short evening drive near home. No lights. Researched this frightening occurrence and found that our year make model has this problem due to bad lighting module solder job. Contacted for ford, no help. Eventually got a letter from ford stating they would extend warranty on this part, but would only replace module if it was failing at time dealer looked at it, after charging $49 dollars to test for codes. It has not failed at a dealer location. I avoid driving at night as much as possible.

Filed Sep 27, 2013 · Lights · 126,454 miles · VA

Since august 2013, every time I turned on my signal light, the intermittent sound for the signal would click faster than usual indicating that a light might be bad. I would check all the lights around the vehicle and they were all good. Then going about 55 on a highway at night, I noticed that it was really dark in front of my vehicle. Pulled over and found that I was driving without light. The head lamps had turned off even though they were on the on position. I had to drive home holding my high beam lights at all times. I heard a click, the lights came on. I let go of the high beam. The head lamps stayed on for 15 min and click, they went off again. This happened to me 4 times. Finally, I took the car to have it diagnosed and was told that the lighting control module had gone bad. I would think that there would have been a recall on this item since so many people have had the same problem as listed on the federal safety agency website. It could be really dangerous.

Filed Sep 26, 2013 · Lights · 52,000 miles · MD

Tl* the contact owns a 2007 mercury grand marquis ls. The contact stated that while driving at various speeds, the headlights turned off intermittently during the night and on during the day. The contact also mentioned that when the high beams were turned on, all of the lights would turn off. The vehicle was taken to an independent mechanic, who stated that the lighting control module would need to be replaced. The manufacturer was notified. The approximate failure mileage was 60,000. The current mileage was 52,000. ...updated 11-18-13

Filed Jun 25, 2013 · Acceleration · 17,869 miles · KY · crash

Tl* the contact owns a 2008 mercury grand marquis. The contact stated that while depressing the brake pedal and driving approximately 5 MPH, the RPM reading increased as the vehicle jerked forward. The contact stated all the warning lights on the instrument panel illuminated. The failure recurred various times causing a crash. The contact was driving approximately 60 MPH when the vehicle accelerated, causing the contact to crash into a guard rail and a concrete wall. The police reported to the scene and a report was filed. The vehicle was towed to the dealer for diagnosis where the technician was unable to diagnose the failure. The manufacturer was made aware of the failure. The vehicle was not repaired. The approximate failure mileage was 17,869.

Filed Nov 26, 2012 · Lights · 58,000 miles · SC

This is the second time the lcm has, without warning, failed. The first time, while driving along us1 after dark, all lights - headlights, tail lights, and dashboard light - went off!! There were no street lights and cars could not see us from behind and we could not see where we were going! We were terrified. Our lives were at stake as we anxiously and extremely slowly made our way home. The repair was outrageously costly. And, of course, we were restricted to driving only in sunny daylight hours as lights are required when raining. Now, this has happened again. The car has been taken to the local ford dealer. However, although the part has been ordered for over 10 days, there is no word as to when it will be available and we are about to take a four-day trip! We have contacted the ford motor co. About this problem, both by phone and by email, and all they can say is that it needs to be fixed. Excuse me! This is a life and death issue!!! We could have been killed on the highway due to a faulty lcm! In all our years we have never had this happen with any other car. We have read in several blogs that there are defective modules being used - yes, from ford motor co.! Does there need to be a highway death due to this defect before ford will acknowledge this problem and replace this part at their expense?? *tr updated ivoq 12/19/12

Filed Oct 23, 2012 · Lights · 32,000 miles · FL

Tl* the contact owns a 2005 mercury grand marquis. The contact stated that while driving 60 MPH, all of the lights on the vehicle failed. The vehicle was taken to the dealer who advised that the light control module was defective and needed to be replaced. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure and the current mileage was 32,000.

Filed Jun 17, 2012 · Lights · 125,000 miles · MI

In october 2011, I was driving at night when my headlights went off. I pulled into a parking lot to investigate the problem. I got out and took a walk around the car and all the lights were working except the headlights. I turned the lights switch off for a few minutes and the lights came back on. The problem worsened and I found that I could hold the "momentary" high beam switch on and the headlights would work -- as long as I held the switch in the high beam position. The situation worsened, and now the headlights will not come on for any length of time. The problem has escalated from october 2011 until late may 2012. If I need to drive the car at night, I must hold the "momentary" high beam switch while I drive. Once in a while you can see the headlights come on because the lights get extremely bright. Then I can release the "momentary" high beam switch. The lights will only stay on for about 10 seconds and then go back off. My mechanic told me that many mercury grand marquis and ford crown victoria's around the model year of my car have this problem. He has traced the problem to something called the lighting control module. It seems to me that this is an engineering problem. Ford wants $600.00 just for the part. If you search the internet for similar problems, you will find an abundance of very similar situations as I have described to you. Not everyone is reporting this problem. Please help! Updated 08/20/12

Filed Jun 1, 2011 · Engine, Transmission · MO

2007 mercury grand marquis. Consumer states defect with computer/power train control module *tgw the consumer stated when his wife attempted to apply the brake on two separate occasions, the vehicle failed to reduce its speed. Consequently, his wife went through the red light. The consumer took the vehicle to the dealer for an inspection. The dealer asked the consumer did the vehicle have adjustable pedals and when the consumer stated it did, the dealer suggested that maybe his wife put her foot on both pedals simultaneously. The consumer also stated there was message on the instrument panel in french. When he looked at the owners manual, it meant change oil. The consumer believed the message in french, instead of english effected the computer system.*jb the consumer stated the incident has since happened for a third time. When the consumers wife pulled into a parking spot, she put the gear in park and turned off the ignition. However, the vehicle continued to move even though the vehicle was in park and when she stepped on the brake the vehicle did not stop. She immediately engaged the emergency brake and the vehicle stopped. She tried to restart the vehicle, but it would not start. The consumer stated when he arrived to his wife's destination, the vehicle would not start when it was in park. However, all of the lights and the dashboard lights worked. When the key was in the on position, he could freely move the gear shift indicator between gears, but there was no feel that the gear indicator was in any gear. Updated 06/14/11

Filed Dec 17, 2010 · Lights · 59,000 miles · NC

Tl*the contact owns a 2005 mercury grand marquis. While driving at any speed, the contact noticed that all the lights on the vehicle would suddenly shut off without warning and the contact was forced to use the hazard lights. The dealer was notified but was unable to diagnose the failure. The manufacturer was informed and the contact was awaiting a response. The vehicle was not repaired. The current and failure mileages were approximately 59,000.