Mercury Grand Marquis headlights problems

Filed Sep 16, 2026 · Lights · 144,500 miles · MN

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 was made aware of the failure by phone. The contact was informed that the VIN was not associated with the federal safety agency Campaign Number: 15V861000 (Exterior Lighting). The failure mileage was approximately 144,500.

Filed May 14, 2026 · Lights · FL

While driving my vehicle headlights turn off and back on, sometimes off for minutes sometimes flickering.

Filed Aug 29, 2025 · Lights · 116,000 miles · NJ

The contact owns a 2004 Mercury Grand Marquis. The contact received the federal safety agency Campaign Number: 15V861000 (Exterior Lighting). The contact stated that while driving at night, the headlights were flickering and became inoperable. Occasionally, the headlights operated as designed. There were no warning lights illuminated. The contact called the local dealer and was informed that the parts were not yet available. The vehicle was not diagnosed or repaired. The contact was an independent mechanic and used a module assembly repair kit to repair the vehicle, but the failure reoccurred. The manufacturer was contacted, but no additional assistance was provided. The failure mileage was approximately 116,000.

Filed Jul 1, 2025 · Lights · 80,082 miles · FL

The contact owns a 2005 Mercury Grand Marquis. The vehicle was taken to the local dealer, where it was repaired under the federal safety agency 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.

Filed May 13, 2025 · Electrical, Lights · 160,000 miles · NY

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 the federal safety agency Campaign Number: 15V861000 (Exterior Lighting); however, the VIN was not included. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was approximately 160,000.

Filed May 13, 2025 · Lights · 160,000 miles · VA

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 the federal safety agency Campaign Number: 15V861000 (Exterior Lighting); however, the VIN was not included. The manufacturer was not informed of the failure. The failure mileage was approximately 160,000.

Filed May 12, 2025 · Lights · 211,000 miles · MI

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 the federal safety agency Campaign Number: 15V861000 (Exterior Lighting); the VIN was included, but the vehicle was already repaired under the recall. The manufacturer was not notified of the failure. The failure mileage was 211,000.

Filed Jan 27, 2025 · Lights · 127,000 miles · AL

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.

Filed Dec 22, 2024 · Electrical, Lights · RI

The headlights shut off without warning

Filed Dec 10, 2024 · Lights · 285,000 miles · RI

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 the federal safety agency 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.