general problems of the 2003 Mercury Grand Marquis - part 1

78 problems related to exterior lighting have been reported for the 2003 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Mercury Grand Marquis based on all problems reported for the 2003 Grand Marquis.

1 Exterior Lighting problem

Failure Date: 05/06/2025

The lighting control module has failed and my brake lights and dash board lights turn off after couple minutes while driving with the lights on. I took my vehicle in to dealer already once for problem to be fixed a year ago. They did repair but now same problem is occurring again. I went back to dealer sunrise Ford in fontana and they said recall work is only warranty for 1 year or 12k miles. The work was done in December 2023. They want to charge me $230. 00 for diagnostic. But issue is same problem as before. Recall number is 15s39. Driving without brake lights is dangerous and has limited my driving. I cannot go out at night. I do not have another vehicle. This affects my life. I've called other dealers and they refuse to do the work.

2 Exterior Lighting problem

Failure Date: 04/22/2025

The contact owns a 2003 Mercury Grand Marquis. The contact that the headlights were intermittently inoperable. Additionally, the contact stated that the instrument panel lights, the brake lights, and the turn signal lights were inoperable. The contact who is a mechanic, had inspected the fuses, the fuse box, and other unknown parts, but found no failures. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The contact related the failure to NHTSA campaign number: 15v861000 (exterior lighting); however, the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 160,000.

3 Exterior Lighting problem

Failure Date: 12/27/2024

The contact owns a 2003 Mercury Grand Marquis the contact stated that both the headlamps and the taillights intermittently failed to operate as needed. There were no warning lights illuminated. The vehicle was taken to the dealer and was diagnosed. The dealer placed a processor on the vehicle and rewired the lights however, the failure persisted. The manufacturer was not made aware of the failure. The manufacturer was not made aware of the failure. The failure mileage was 127,000.

4 Exterior Lighting problem

Failure Date: 11/30/2024

The headlights shut off without warning.

5 Exterior Lighting problem

Failure Date: 11/15/2024

The contact owns a 2003 Mercury Grand Marquis. The contact stated that while driving at an undisclosed speed, the front headlights shutoff independently while turned on. No warning light was illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The contact who is an independent mechanic determined that the lighting control module (lcm) needed to be replaced. Upon further investigation, the contact related the failure to NHTSA campaign number: 15v861000 (exterior lighting); however, the VIN was not included. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 285,000.

6 Exterior Lighting problem

Failure Date: 09/16/2024

The contact owns a 2003 Mercury Grand Marquis. The contact stated while attempting to pull out of the parking lot, the headlights and the taillights became inoperable. The vehicle was not diagnosed or repaired. The VIN was not included in NHTSA campaign number: 15v861000 (exterior lighting). The manufacturer was notified of the failure. The failure mileage was 100,000.

7 Exterior Lighting problem

Failure Date: 09/02/2024

Head lights suddenly went out while driving at night causing near accident, happening frequently. Also, the gas tank leaks when I put gas in car, making it smell badly and making it dangerous if someone drops a cigarette near it.

8 Exterior Lighting problem

Failure Date: 07/15/2024

The contact owns a 2003 Mercury Grand Marquis. The contact stated while driving at an undisclosed speed, the headlights failed to operate as needed. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the lighting control module needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle had previously been repaired under NHTSA campaign number: 15v861000 (exterior lighting). The manufacturer was made aware of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 181,000.

9 Exterior Lighting problem

Failure Date: 01/14/2024

Its the lcm l(ight control module). . . Head lights went out on me one night coming down highland street in bastrop louisiana causing me to wreck in a ditch and hitting a light poll.

10 Exterior Lighting problem

Failure Date: 01/01/2024

The contact owns a 2003 Mercury Grand Marquis. The contact stated that the headlights and taillights were inoperable, and the trunk failed to open. Additionally, all the doors failed to manually lock, and while utilizing the key fob, the door locks were inoperable. The door-ajar message was displayed. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline. The contact stated that the failure was related to NHTSA campaign number: 15v861000 (exterior lighting). The approximate failure mileage was 179,000. The VIN was not available.

11 Exterior Lighting problem

Failure Date: 05/30/2023

The contact owns a 2003 Mercury Grand Marquis. The contact stated while driving 75 mph at night, the brake lights, headlights, and taillights failed to illuminate as needed. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The contact stated that the lighting control module was the cause of the failure. The manufacturer was made aware of the failure and referred the contact to file a complaint with the NHTSA hotline. The failure mileage was approximately 101,000.

12 Exterior Lighting problem

Failure Date: 05/15/2023

The contact owns a 2003 Mercury Grand Marquis. The contact stated that the vehicle was previously repaired under technical service bulletin: 14n01 (lighting control module); however, the contact stated that while driving at an undisclosed speed, the headlamps flashed and then completely failed to remain illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 121,236.

13 Exterior Lighting problem

Failure Date: 05/10/2023

O. I. N. 11523223 05/22/2023 1. Lighting control module: failure 2nd time. 2. Couldn't see where I was traveling. 3. No. 4. Yes. Inspected by myself, a mechanic and trouble shooter. 5. Yes. Prior to the failure, the headlamps began flashing on and off. Previously the taillights failed. No warning. Lighting control module defective. Replaced module per recall 14n01c. Ford dealership, pearson Ford, inc. 10650 n. Michigan rd. , zionsville, in. , 317. 873. 3333, service advisor: william haygood.

14 Exterior Lighting problem

Failure Date: 12/27/2022

I received a recall on my car in 2019 to change the lighting control module as my headlights could go out without warning. Although I had not experienced this, I brought my vehicle to the local Ford dealer who changed the part. Over the pandemic and now since my wife and I are in declining health we have driven very little after dark. However, I recently had to go to the pharmacy at walmart and returned home after dark but my headlights went out completely. Now I am having this problem and the local Ford dealer said there was no second recall so he wants to charge me between $500 and $600 to correct the problem. I think this is Ford's responsibility to correct. Please assist in making the manufacturer aware of this.

15 Exterior Lighting problem

Failure Date: 12/21/2022

Hard to steer car, power assist not working, doors do not lock.

16 Exterior Lighting problem

Failure Date: 11/23/2022

Almost had accidents because lights failed, headlights and taillights failed at night, including dash lights today, creating safety hazard. Seat tilt failed, and body mount frame bushing failed. Mirror tilt switch failed. Fuel filler neck leaks when filled. Very scary especially at night. Please recall and fix before we get hurt.

17 Exterior Lighting problem

Failure Date: 10/10/2022

The lcm has failed during nightly driving causing a complete loss of headlights.

18 Exterior Lighting problem

Failure Date: 09/01/2022

The lighting control module failed. Even after recall 2 years later and only 9 thousand miles oem part replacement under recall and recall part has failed no tail lamps work no turn signal lights. Only brake lights it’s a common problem even after recall replacement it’s worked fine for 8 thousand miles now lights don’t work all the time.

19 Exterior Lighting problem

Failure Date: 01/23/2022

The contact owns a 2003 Mercury Grand Marquis. The contact stated that upon purchase of the vehicle, he received notification of NHTSA campaign number: 15v861000 (exterior lighting). Over time, the contact stated that the headlights and taillights would intermittently fail to operate without warning. The vehicle was taken to the dealer and the recall repair was performed. Despite the recall repair, the contact stated that the taillights failed to operate. The dealer was informed of the failure and the contact was informed that he had to pay out of pocket for the repair. The manufacturer was notified of the failure. The vehicle was not repaired. The failure mileage was approximately 190,000.

20 Exterior Lighting problem

Failure Date: 06/01/2021

Headlights began not working intermittently, and now do not go on, but high beams still work without issue. Seems very similar to recall 15s39, which was repaired on my vehicle in 2015, but became an issue again about a month ago. The car has only accrued about 10,000 since it was last repaired.

21 Exterior Lighting problem

Failure Date: 02/01/2021

The contact owns a 2003 Mercury Grand Marquis. The contact stated that upon turning on the headlights, the taillights intermittently failed to illuminate. There was no warning light illuminated. The contact called two local dealers and was informed that there were no open recalls associated with the VIN. The manufacturer was also notified of the failure and a complaint was filed. The manufacturer informed the contact that the vehicle was previously repaired under NHTSA campaign number: 15v861000 (exterior lighting). The vehicle was not repaired. The failure mileage was approximately 148,000.

22 Exterior Lighting problem

Failure Date: 06/15/2020

The headlights are still not working properly, as before the recall. It is hit or miss if they decide to come on, or stay on. Also, the rear running lights may or may not come on when I turn the headlights on.

23 Exterior Lighting problem

Failure Date: 01/01/2019

Tl- the contact owns a 2003 Mercury Grand Marquis. The contact stated that the front head light assembly had malfunctioned and the front passenger side and driver side head lights were inoperable. The vehicle was taken to an independent mechanic who diagnosed that the head light assembly needed to the be replaced. The vehicle was not yet repaired. The manufacturer and local dealer pundmann Ford(2727 w. Clay st. St. Charles, mo. ) were notified but no assistance was offered. The failure mileage was 173,000. Jft.

24 Exterior Lighting problem

Failure Date: 06/30/2018

Tl- the contact owns a 2003 Mercury Grand Marquis. The contact stated that the headlamp and taillamps intermittently would not function. The failure occurred without warning. Doug henry Ford of ayden located 4057 lee st, ayden, nc was contacted and diagnosed the failure as the lcm being defective and recommended it be replaced. The vehicle was repaired however the failure recurred. The manufacturer was notified of the failure however no further assistance was offered. The failure mileage was 136,000. Kh.

25 Exterior Lighting problem

Failure Date: 09/26/2017

The contact owns a 2003 Mercury Grand Marquis. The contact stated the vehicle's exterior headlamps failed. The dealer was not contacted. The manufacturer was notified of failure however due to them stating the vehicle was already remedied under NHTSA campaign number 15v861000(exterior lighting) no further assistance was offered. The failure mileage was approximately 115,481.

26 Exterior Lighting problem

Failure Date: 07/12/2017

The contact owns a 2003 Mercury Grand Marquis. The contact received notification of NHTSA campaign number: 15v861000 (exterior lighting); however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. A dealer was not contacted about the recall. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

27 Exterior Lighting problem

Failure Date: 06/14/2017

Recall 15s39: my lights were working just fine but I received a recall notice. When I called to make an appoinment I said I had no problems with my ligh but the letter said it might occur at anytime. I drive approx. 35,000 miles per year. May 17,2017 I made appoinment. For june12,2017. What I thought was a new module was installed. June 14, 2017 my lights suddenly went out when I was driving. They suddenly came back on. Later that evening they would not come on at all. (it stays on automatic). I got the manual lights to come on . No bright light only intermittant brights. The next day I took it to gem city Ford. After an hour they said they were o. K. 10 p. M. The lights went out again. I used manual. Called they said they would call back. They didnot with more than oncalls never to be called back. Then I left a note I would get it checked while out of sate. Then I got a call requesting that I bring it in. I was leavine the state f or a week. Came back to town the next week told that the patch that was put in was working and I could purchase the module. This is a dangerous thing . The fix caused a proble that the fix was supposed to do. I want my car back to the way it was. When driving it makes a pop then goes out or comes on. When starting they may not come on at all. I don't want this to happen when I'm going throught the mountains of georgia or tennesse at night. This should have not been patched. It's lazy . A persons life that bought this vehical should be worth more than that. No way to up load. I can fax.

28 Exterior Lighting problem

Failure Date: 06/10/2017

My lights do not come on when my wipers are activated in the rain. This happen when I am driving or stationary.

29 Exterior Lighting problem

Failure Date: 02/28/2017

Safety recall notice 15s39/NHTSA recall 15v-861 not completed on my car. Was notified by Ford Jan 2016 that repair would be accomplished but it has not.

30 Exterior Lighting problem

Failure Date: 01/24/2017

The recall is over a year old and the lights are now failing to come on. If I wack the console I can get the lights on but it's getting worse. What can be done to remedy this?.

31 Exterior Lighting problem

Failure Date: 01/19/2017

I live in a remote part of hawaii and am a physician who gets called in the middle of the night for emergencies. I was driving on the upper road with several drop offs and my lights went out in the middle of driving. The high beams did not work either, but I had to hold down the lever for the lights to work. I almost wrecked my vehicle and I could have driven off the road and killed myself. In addition, my patient needing emergency surgery could have died because I was not there to administer anesthesia. There is no excuse for this. Absolutely none! I have changed fuses, lights and the light switch. This was on an isolated highway with no lights in the mountains on the big island. There was nothing to light the highway but the stars. I was driving between 55-60 miles an hour.

32 Exterior Lighting problem

Failure Date: 12/15/2016

Tl the contact owns a 2003 Mercury Grand Marquis. The contact stated that the manufacturer failed to provide the part within a reasonable time frame concerning NHTSA campaign number: 15v861000 (exterior lighting). Wilmes Chevrolet Buick GMC (2215 e broadway st, altus, ok 73521, 580-301-7169) and the manufacturer were contacted and confirmed that the part was not available. The contact had not experienced a failure. VIN tool confirms parts not available.

33 Exterior Lighting problem

Failure Date: 06/27/2016

The contact owns a 2003 Mercury Grand Marquis. The contact received notification of NHTSA campaign number: 15v861000 (exterior lighting). The part was not available within a reasonable time frame to schedule the recall repair. The dealer did not give a specific date for when the part would become available. The contact was unable to determine when the vehicle would be repaired. The manufacturer could not provide an estimated date for when the vehicle would receive the recall repair. The contact was experiencing a failure in which the exterior lighting randomly shorted while waiting months for the parts. The failure mileage was not available. VIN tool confirms parts not available.

34 Exterior Lighting problem

Failure Date: 05/01/2016

The contact owns a 2003 Mercury Grand Marquis. While driving 55 mph, the headlamps failed to operate. The failure occurred without warning. The vehicle was not diagnosed nor repaired. The manufacturer was not notified of the failure. The failure mileage was 134,000.

35 Exterior Lighting problem

Failure Date: 03/20/2016

Front head lights will not comes on at night or they will go off while drving at night.


Other Exterior Lighting related problems of the 2003 Mercury Grand Marquis


Fuel Economy of Grand Marquis Vehicles
Grand Marquis Service Bulletins
Grand Marquis Safety Recalls
Grand Marquis Defect Investigations