There are 8 owner-reported lighting complaints for the 2001 Mercury Grand Marquisin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
I WAS DRIVING AT NIGHT AND THE LIGHTS WENT OFF DASH, TAIL, INSTRUMENT AND SIGNAL LIGHTS AND THEN KILLED MY BATTERY
WAS DRIVING DOWN HWY 12 AT NIGHT SEPTEMBER 26 2019 AND ALL I REMEMBERED WAS MY LIGHTS SHUTTING OFF DUE TO LIGHTING CONTROL MODULE WHICH I LEARNED AFTER THE FACT DIDNT HAVE MAJOR ACCIDENT BUT DID HIT SMALL DITCH AND BENT UP MY BUMPER
TL* THE CONTACT'S FATHER OWNS A 2001 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE HER SON WAS DRIVING THE VEHICLE AT AN UNKNOWN SPEED, THE LIGHTING CONTROL MODULE (LCM) BECAME INOPERABLE WITHOUT WARNING. THE CONTACT'S SON WAS ABLE REACTIVATE THE LCM; HOWEVER, THE FAILURE RECURRED INTERMITTENTLY. THE CONTACT WAS INFORMED BY AN INDEPENDENT MECHANIC THAT CERTAIN 2003 MERCURY GRAND MARQUIS WERE INCLUDED IN NHTSA CAMPAIGN NUMBER: 15V861000 (EXTERIOR LIGHTING), HOWEVER, THE 2001 MODEL YEAR VEHICLE WAS NOT INCLUDED IN THE RECALL. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN. THE VIN WAS NOT AVAILABLE.
PUT ON DIM AND LIGHTS WONT COME ON AT ALL, SO I CAN NOT DRIVE AT NIGHT. BREAKS LIGHTS, SIGNALS, EMERGENCY LIGHT, DASH BOARD WORKS ONLY WHEN I TURN ON WINDSHIELD WIPERS , . HAD BULBS AND MODULAR REPLACED STILL NO LIGHTS. THIS STARTED DRIVING AT NIGHT ON STREET SO HAPPENED TO BE CLOSE TO HOME.
TL* THE CONTACT OWNS A 2001 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE DIGITAL SPEEDOMETER WOULD READ DISPLAY A HIGH NUMBER THEN WITHOUT WARNING DISPLAY "0", THE FAILURE WOULD OCCUR INTERMITTENTLY. THE CONTACT ALSO STATED THAT THE HEADLIGHTS WERE TURNING OFF AND ON INTERMITTENTLY WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A DEALER FOR THE SPEEDOMETER FAILURE, WHERE A DIAGNOSIS WAS NOT DETERMINED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 209,000.
TL* THE CONTACT OWNS A 2001 MERCURY GRAND MARQUIS. WHILE DRIVING 60 MPH, THE FRONT AND REAR WARNING AND SIGNAL LAMPS FAILED TO ILLUMINATE. IN ADDITION, BOTH HIGH AND LOW BEAM HEAD LAMPS FAILED TO ILLUMINATE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE LIGHT CONTROL MODULE FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 96,321.
TL* THE CONTACT OWNS A 2001 MERCURY GRAND MARQUIS. THE CONTACT STATED THE HEADLIGHTS WERE DIM WHILE DRIVING AT NIGHT WHICH MADE IT DIFFICULT TO SEE. THE LIGHTS WOULD ALSO REFLECT OFF OF THE PAVEMENT. WHEN APPROACHING ONCOMING TRAFFIC THE PASSING VEHICLES LIGHTS CAUSED A BLINDING EFFECT. THE DEALER STATED THAT WAS HOW THE VEHICLE WAS DESIGNED AND WOULD NOT OFFER ANY ASSISTANCE. THE FAILURE MILEAGE WAS 41,712 AND THE CURRENT MILEAGE WAS 49,505. UPDATED 07/26/10. *LJ UPDATED 08/03/10*JB
TURNING SIGNAL STARTED TO FLASHING REALLY FAST, TOOK VEHICLE TO DEALER AND COULD NOT FIND CAUSE. ENGINEER REPAIRED LIGHTS. CONSUMER STATED THAT SEAT BELT WARNING LIGHT STOPPED WORKING RIGHT AFTER THEY FIXED TURN SIGNAL LIGHT.*AK
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 26, 2026