2005 Mercury Grand Marquis lighting problems

Related recalls

• Recall 15V861000Dec 22, 2015296,004 vehicles
  EXTERIOR LIGHTING:HEADLIGHTS

  Ford Motor Company (Ford) is recalling certain model year 2003-2005 Ford Crown Victoria and Mercury Grand Marquis vehicles manufactured October 3, 2001, to August 2, 2005. The affected vehicles have a lighting control module (LCM) that may fail, resulting in a loss of headlights.

  Risk: A loss of headlights can reduce driver visibility and increase the risk of a crash.

  Remedy: Ford will notify owners, and dealers will replace the LCM, free of charge. The recall began April 14, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15S39.

What owners say

1. Filed Sep 16, 2026144,500 miMNLighting

   The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving 60 MPH, the front headlights flickered on and off before turning off. The failure had occurred while the contact was driving at night. Upon inspecting the vehicle, the contact became aware of scorch marks on the LCM, and the relay switch had burn marks. The contact stated that while attempting to turn off the front headlights manually, the front headlights remained illuminated. The dealer…

   NHTSA complaint #11764784 · source
2. Filed Jul 1, 202580,082 miFLLighting

   The contact owns a 2005 Mercury Grand Marquis. The vehicle was taken to the local dealer, where it was repaired under NHTSA Campaign Number: 15V861000 (Exterior Lighting). The contact stated that the headlights activated without driver input. The contact removed the circuit wires. The vehicle was not diagnosed or repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 80,082.

   NHTSA complaint #11670450 · source
3. Filed May 13, 2025160,000 miVALighting

   The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving at various speeds and at night, the headlights independently turned off. The contact had taken the vehicle 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 mechanic advised the contact of NHTSA Campaign Number: 15V861000 (Exterior Lighting); however, the VIN was not included. The…

   NHTSA complaint #11660606 · source
4. Filed May 12, 2025211,000 miMILighting

   The contact owns a 2005 Mercury Grand Marquis. The contact stated while driving at an undisclosed speed at night, the contact became aware that the front headlamps had intermittently failed to provide proper illumination, greatly reducing nighttime visibility. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign…

   NHTSA complaint #11660374 · source
5. Filed Oct 18, 202485,000 miAZLighting

   The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving at undisclosed speeds, the headlights flickered after approximately a minute. The headlights continued to turn on and off independently. The headlights eventually became inoperable. There were no warning lights illuminated. The contact received notification of NHTSA Campaign Number: 15V861000 (Exterior Lighting); however, the part to do the recall repair was not yet available. The local…

   NHTSA complaint #11620630 · source
6. Filed Jul 30, 2024120,000 miWILighting

   The contact owns a 2005 Mercury Grand Marquis. The contact stated while driving 48 MPH, a Police Officer pulled the contact over and informed her that the taillights were inoperable. No warning light was illuminated. The vehicle was drivable and was taken to an independent mechanic and the bulbs were replaced. The vehicle was repaired; however, the failure reoccurred. The manufacturer was notified of the failure and informed the contact that the VIN was not under recall for…

   NHTSA complaint #11605505 · source
7. Filed Jun 22, 2024MOLighting

   Light control module was replaced per recall via Ford and new LCM became faulty after 4 years. Ford will not replace recalled part due to warranty on recalls. Apparently from Ford and other mechanics, this is a common problem with the LCM not working for long even after replacement.

   NHTSA complaint #11595894 · source
8. Filed Oct 23, 202335,000 miNYLighting

   The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving at approximately 40 MPH at night, there was a flash, and the headlights became inoperable. There were no warning lights illuminated. The contact's brother informed him to use the high beam headlights. The vehicle was taken to an independent mechanic, who stated that the failure was due to the lighting control module. The contact called the local dealer, who stated that the vehicle was not…

   NHTSA complaint #11551434 · source
9. Filed Jul 19, 2023SCLighting

   The contact owns a 2005 Mercury Grand Marquis. The contact stated that while his sister was driving 55 MPH at night, the headlights became inoperable. There was no warning light illuminated. The contact who is an independent mechanic, stated that he diagnosed that the Light Control Module (LCM) had failed and needed to be replaced. The dealer and the manufacturer were notified of the failure and advised the contact that the VIN was not included in a recall. The vehicle was…

   NHTSA complaint #11533228 · source
10. Filed Apr 14, 2023156,000 miILLighting

    The contact owns a 2005 Mercury Grand Marquis. The contact stated while driving 30 MPH, the headlights became inoperable, without warning. The contact pulled over on the side of the road, after turning off and turning on the headlight switch, the headlights illuminated. The vehicle was taken to the dealer and the dealer stated that the lighting control module needed to be replaced. The vehicle was not repaired. The manufacturer was contacted, and the manufacturer stated that…

    NHTSA complaint #11517045 · source
11. Filed Feb 19, 2023FLLightingVisibility & Wipers

    My windshield wipers started coming on and off by themselves in my 2005 grand Marquis. They also started spraying all of the windshield wipers fluid out. The lights also flicker on and off by themselves. The wipers then stopped working all together. I took it to a Ford dealership where they could not locate the problem.

    NHTSA complaint #11508105 · source
12. Filed Jan 26, 202381,000 miVALighting

    The contact owns a 2005 Mercury Grand Marquis. The contact stated while driving 45 MPH, the headlights fluctuated off and on without warning. The vehicle was taken to an independent mechanic who stated that the vehicle had experienced the failure listed in NHTSA Campaign Number: 15V861000 (Exterior Lighting) and referred the contact to the dealer. The dealer was contacted and stated that the vehicle was not included in the recall. The vehicle was not repaired. The…

    NHTSA complaint #11503810 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology