There are 50 owner-reported lighting complaints for the 2004 Mercury Grand Marquisin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2004 Mercury Grand Marquis. The contact stated while driving at an undisclosed speed at night, he became aware that the headlights were not functioning properly. 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 Customer Satisfaction Program: 14N01. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was unknown. The VIN was not available.
The rear running lights are not working. No lights in rear of vehicle at night.
My front headlights stopped working and I was driving in the dark.
The contact owns a 2004 Mercury Grand Marquis. The contact stated while driving at an undisclosed speed, the exterior lighting became inoperable. The contact stated that the failure occurred at night which caused him to be on a dangerous dark road. The contact stated that due to the failure and his vision being impaired, the vehicle was driven into a ditch. The contact stated that he received several violation tickets from the local Police. The contact stated that a year ago the vehicle was serviced by the dealer under recall repair for the lighting control module. The contact stated that the failure had occurred twice after the recall repair was completed. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 212,000.
The contact's husband owns a 2004 Mercury Grand Marquis. The contact's husband had received notification of NHTSA Campaign Number: 15V861000 (Exterior Lighting). The vehicle was taken to a local dealer for the recall repair. The vehicle was repaired; however, the contact was made aware that only the light control module (LCM) module harness was replaced and not the light control module itself. The contact also stated that after the vehicle was returned, the driver's door latch was fractured, and the front passenger’s side headlight failed to illuminate intermittently. The contact made the dealer aware of the failure and was informed that the cost of the repair was her responsibility. The manufacturer was made aware of the failure. The approximate failure mileage was 117,000.
The headlight repair has been made but now the tail and park lights work intermittently. Most of the time not working but occasionally they will come on in colder weather. I think the problem is still in the Lighting control module. First appearance was last summer and has gotten worse. No other symptoms. Hazard ,turn signals, and brake lights all still work properly. Just no tail or park lights.
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.
Light Control Module replaced by Ford dealer but having issue with lights turning off again
TL* THE CONTACT OWNS A 2004 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT THE HEADLIGHTS WOULD INDEPENDENTLY BECOME INOPERABLE, WITHOUT WARNING. THE CONTACT STATED THAT THERE WAS NO WARNING LIGHT ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO THE LOCAL DEALER. THE VEHICLE WAS NOT REPAIRED. UPON INVESTIGATION, THE CONTACT ASSOCIATED THE FAILURE WITH NHTSA CAMPAIGN NUMBER: 15V861000 (EXTERIOR LIGHTING) HOWEVER, THE VIN WAS NOT INCLUDED. THE MANUFACTURER WAS INFORMED OF FAILURE AND CONFIRMED THAT THE VIN WAS NOT INCLUDED. THE FAILURE MILEAGE WAS APPROXIMATELY 150,000.
The lights keep coming off when I drive
HEAD LIGHTS STARTED FLICKERING AND MOST OF TIME I HAD KICK AT THE LIGHTNING CONTROL MODULE TO MAKE IT WORK WHILE IN MOTION ON MAJOR HIGHWAY
TL* THE CONTACT OWNS A 2004 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE THE VEHICLE WAS BEING DRIVEN THE FRONT HEADLAMPS, REAR TAILLAMPS, TURN SIGNALS AND DASHBOARD LIGHTS BECAME INOPERABLE. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE DEALER VERA CHADDY (1240 BLOOMFIELD, FAIRFIELD NJ) AND THE MANUFACTURER WAS NOTIFIED OF THE FAILURE BUT NO ASSISTANCE WAS OFFERED. THE FAILURE MILEAGE WAS 147,000.
AFTER RECEIVING RECALL REMINDER FROM FORD ABOUT SAFETY RECALL FOR HEADLIGHTS INOPERATIVE I MADE APPOINTMENT WITH DEALER PROVIDING VIN# TO DEALER TO GET LCM ORDERED TO REPLACE IT AND IT WAS MORE THAN $500, AND VIN SPECIFIC. ARRIVED AT APPOINTMENT AND SERVICE MANAGER NOTED FORD WOULD NOT REIMBURSE THEM TO REPLACE LCM, COULD DO A REWIRE CAR PER THEIR COMPUTER INSTRUCTIONS AND SOMETHING ABOUT DIAGNOSTIC FEES, AND I NEEDED TO CONTACT FORD CUSTOMER SUPPORT TO GET A NUMBER AUTHORIZING THE DEALER TO REPLACE THE LCM AS NOTED AS REMEDY IN NHTSA 15V861000. CALLED CUSTOMER SUPPORT AND HEARD AUTOMATED MESSAGE THRU AUTOMATED CALL SYSTEM RELATED TO THEIR #15S39 THAT THEY WOULD NOTIFY WHEN PARTS ARE AVAILABLE, THIS DIDN'T SEEM CONTACTED CUSTOMER SUPPORT ONLINE NOTING ISSUE AND THEY DID NOT PROVIDE # NEEDED FOR THAT DEALER AND SUGGESTED GOING TO ANOTHER DEALER.
HEADLIGHTS GO OUT WHEN DRIVING. I CAN PULL BACK TO DO THE PASSING LIGHTS AND THEN COME ON WHILE I AM HOLDING IT. I CAN KICK THE LIGHTING CONTROL MODULE ABOVE THE GAS PEDAL AND SOMETIMES IT WILL COME ON WHILE I AM DRIVING. OTHER TIMES I HAVE TO PULLOVER PUT THE CAR IN PARK AND KICK TILL IT COMES BACK ON. THIS WILL HAPPEN SEVERAL TIMES
HEADLIGHTS STOP WORKING AT NIGHT AND WILL NOT COME BACK ON .ONLY HEADLIGHTS .ALL OTHER LIGHTS WORK FINE.
TL* THE CONTACT OWNS A 2004 MERCURY GRAND MARQUIS. WHILE DRIVING 35 MPH, THE HEADLIGHTS FAILED TO ILLUMINATE WITHOUT WARNING. THE VEHICLE WAS TAKEN TO THE DEALER (CAROLINA FORD, 103 CHURCH ST, HONEA PATH, SC 29654, (888) 420-5939) AND THE CONTACT WAS INFORMED THAT THERE WERE NO RECALLS FOR THE VEHICLE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 208,000.
The contact owns a 2004 Mercury Grand Marquis. The contact received NHTSA 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.
2004 GRAND MARQUIS. CONSUMER WRITES SEEKING REIMBURSEMENTS FOR VEHICLE REPAIRS RELATED TO A SAFETY RECALL. *LD CONSUMER SENT ADDITIONAL CORRESPONDENCE. *LD THE CONSUMER STATED THE MANUFACTURER CLAIMED THE REIMBURSEMENT HAD BEEN PROCESSED, BUT THE CONSUMER DID NOT RECEIVED THE PAYMENT. *JS
MY VEHICLE WAS RECALLED, AND THE RECALL NOTICE STATES GO TO ANY FORD DEALER. I WENT TO PEGUES-HURST MOTOR COMPANY 200 SPUR 63, P. O.BOX 3686 LONGVIEW, TX 75606 (903) 758-6211. THEY DID THE REPAIR, BUT WHEN I PICKED UP MY VEHICLE THE AUTO LAMP NO LONGER WORKS. I REPORTED IT THE NEXT MORNING AND THE SERVICE ADVISOR, LUIS A CAVAZOS SAID THE TECHNICIAN TERRY L. BATES, TOLD HIM IT DID NOT WORK WHEN HE DROVE IT IN TO THE BAY. I TOLD HIM THAT WAS NOT TRUE AND THAT I KNOW THAT IT WORKED WHEN I DROPPED IT OFF BECAUSE I ALWAYS KEPT MY AUTO LAMPS ON AND IT WAS DARK WHEN I LEFT MY HOME TO DRIVE TO THEIR DEALERSHIP. I ARRIVED AT THEIR DEALERSHIP AT APPROXIMATELY 6:50 AM, DECEMBER 05, 2017 AND THEIR SERVICE DEPARTMENT DOES NOT OPEN UNTIL 7:00 AM. THEIR LIGHTS WERE STILL OUT AND I WAS THE SECOND VEHICLE THERE THAT MORNING. I TOLD THE SERVICE ADVISOR THAT THE MODULE KIT THEY PUT IN MUST BE DEFECTIVE OR HE HOOKED SOMETHING UP INCORRECTLY. IN ESSENCE THEY ARE CALLING ME A LIAR, CHEAT AND SCAM ARTIST. I SPOKE TO THE SERVICE MANAGER AND I GOT THE FEELING THEY WERE NOT TAKING RESPONSIBILITY SO I LOST TRUST IN THEM AND ASKED FOR THE GENERAL MANAGER OF THE DEALERSHIP WHO WAS NOT THERE AT 10:00 AM ON THURSDAY, DECEMBER 07, 2017. I ASKED THEM TO HAVE HIM CALL ME AND THEY SAID OKAY. LATER THAT DAY I WAS TOLD HE WAS ON VACATION UNTIL MONDAY, DECEMBER 11, 2017 AND AS OF TODAY, WEDNESDAY, DECEMBER 13, 2017 I HAVE NOT HEARD FROM THEM. I HAD MY PERSONAL MECHANIC CHECK AND HE BELIEVES IT IS THE MODULE THEY PUT IN THAT CAUSES MY AUTO LAMPS TO NO LONGER WORK. THE AMBER LAMPS STILL COME ON AND THE DASH BOARD STILL LIGHTS UP AND THE DOME LIGHTS STILL COME ON WHEN I UNLOCK THE CARE WITH MY REMOTE CONTROL. THIS COMPANY IS CALLING ME A LIAR, CHEAT AND A THIEF. I NEVER HAD A PROBLEM WITH THE CAR OR MY AUTO LAMPS. I AM NOT A THIEF OR CHEAT AS THEY HAVE IMPLIED.
TL* THE CONTACT OWNS A 2004 MERCURY GRAND MARQUIS. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 15V861000 (EXTERIOR LIGHTING); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. A DEALER, INDEPENDENT MECHANIC, AND MANUFACTURER WERE NOT CONTACTED FOR PART AVAILABILITY. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
Showing 1–20 of 50 complaints
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026