Owners filed 348 complaints about this vehicle with federal regulators, most often about the exterior lighting. It has been recalled 2 times.
When it fails
08200082,000 milesMedian miles at failure
281 complaints record an odometer reading. Failures cluster around 75,000–90,000 miles.
What fails
Component
Reports
Crashes
Fires
Injuries
Exterior Lighting
149
1
0
1
Steering
58
3
0
3
Electrical System
30
0
1
1
Exterior Lighting › Headlights
20
0
0
0
Vehicle Speed Control
16
4
1
2
Engine and Engine Cooling
5
0
0
0
Air Bags
5
3
0
3
Visibility/Wiper
4
0
0
0
Visibility › Windshield Wiper/Washer
3
0
0
0
Vehicle Speed Control › Accelerator Pedal
3
1
0
0
2 safety recalls
Part 573 reports
Exterior Lighting › Headlights15V861000
Filed Dec 22, 2015296,004 vehiclesFord Motor Company
Defect. 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.
Fuel System, Gasoline06E056000
Filed Jun 13, 200658,640 vehiclesUfi Filters Usa
Defect. CERTAIN AFTERMARKET FUEL FILTERS SOLD UNDER THE PUROLATOR BRAND NAME, P/N F65277, SHIPPED FROM JANUARY 16 THROUGH JUNE 2, 2006, FOR USE ON THE ABOVE LISTED PASSENGER VEHICLES. DUE TO INCORRECT DESIGN, THE QUICK CONNECTORS MAY NOT FULLY SEAT WITH THE TUBE INTERFACE, EVEN THOUGH THE PERSON MAKING THE CONNECTION MAY BELIEVE THAT THE QUICK CONNECTOR IS FULLY ATTACHED.
Risk. FAILURE OF THIS CONNECTION COULD LEAD TO FUEL SPILLAGE AND, IN THE PRESENCE OF AN IGNITION SOURCE, A FIRE COULD OCCUR.
Remedy. UFI WILL NOTIFY OWNERS AND REPLACE THE FILTERS FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 4, 2006. OWNERS MAY CONTACT UFI FILTERS USA AT 800-230-5876.
What owners reported
Newest filings
Exterior Lighting › Tail Lights
Filed Aug 24, 2026FL
The contact owns a 2004 Mercury Grand Marquis. The contact stated that while driving at an undisclosed speed, a local Police Officer stopped the vehicle and made the contact aware that both taillights were inoperable. No warning lights were illuminated. The vehicle was taken to a dealer to be diagnosed; however, the diagnostic result was unknown. The vehicle was serviced under an unknown recall; however, the failure persisted. The manufacturer was not notified of the failure. The failure mileage was unknown.
Exterior Lighting
Filed Aug 29, 2025116,000 milesNJ
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.
Electrical System › Ignition › Anti-theft › Immobilizer/Proximity › Key/Sender
Filed Aug 4, 202590,000 milesMS
The contact owns a 2004 Mercury Grand Marquis. The contact stated that while the vehicle was parked, the key fob became inoperable. The contact was not able to start the vehicle with the security warning light illuminated. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,000.
Electrical System
Filed Jul 2, 2025MO
Auto lights stopped working. Tail lights will not come on
Exterior Lighting › Headlights
Filed Jun 26, 2024NC
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.
Exterior Lighting
Filed Jun 22, 2024FL
The rear running lights are not working. No lights in rear of vehicle at night.
Exterior Lighting
Filed Nov 15, 2023TN
My front headlights stopped working and I was driving in the dark.
Exterior Lighting › Lighting Control Module
Filed Nov 1, 2023212,000 milesMO
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.
Exterior Lighting
Filed Sep 1, 2023IA
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.
Steering
Filed Jul 14, 2023116,000 milesOH
The contact owns a 2004 Mercury Grand Marquis. The contact stated that while driving at an undisclosed speed, the steering wheel was loose and made an abnormal sound while turning. The vehicle was taken to an independent mechanic, who diagnosed that the steering shaft was corroded, and the bearing had collapsed. The contact was informed that the steering shaft needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but confirmed that there was no recall associated with the VIN. The failure mileage was approximately 116,000.
Exterior Lighting
Filed Apr 12, 2023117,000 milesFL
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.
Vehicle Speed ControlFire
Filed Sep 1, 2022MI
While driving, I came to a stop light and suddenly, the car idled high and lurched forward while my foot was on the brake, luckily, I was stopped well away from the vehicle in front of me. The car idled high and seemed to have a mind of it's own. I took the back roads home and backed into our garage. The car smelled hot, and I though I had smoked my brakes, trying to keep control of it. Later that night, I told my husband about the car's actions and he did not believe me, though my daughter who was with me at the time confirmed that the car had indeed accelerated on it's own. My husband started the car and it did idle high and get hot once again, although only parked with no one in it. He thought he knew what the problem was and we turned off the car and closed the hood and went inside to order the part. A few minutes later, we heard a couple popping noises and I opened the door that led into the garage from the basement. Smoke was coming into the house and my husband said that a flame shot over my head. The car had caught on fire under the closed hood. We called the fire department, but by the time they arrived, a good portion of the basement was on fire. The house was a total loss. My husband though that the pvc elbow under the hood was sticking closed, so that is the part we were going to order. Unsure, if that was the real cause or not. The car did not have any warning lights or any other indications of a problem before this incident.
Exterior Lighting › Brake Lights
Filed Aug 10, 2022164,000 milesIN
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.
Steering
Filed May 31, 2022IL
Steering of vehicle has become progressively more difficult. The steering wheel is very difficult to turn. Not being able to rapidly turn wheel places driver at risk to avoid any potential collision. Vehicle has been inspected by independent repair shop. Their assessment is corrosion on steering shaft joints is cause of issue.
Exterior Lighting
Filed Feb 10, 2022AZ
Light Control Module replaced by Ford dealer but having issue with lights turning off again
Exterior Lighting › Headlights
Filed Dec 18, 2021NC
The lights keep coming off when I drive
Engine and Engine Cooling
Filed Nov 29, 2021150,000 milesNC
The contact owns a 2004 Mercury Grand Marquis. The contact stated that she noticed a leak underneath her vehicle with the check engine and coolant warning lights illuminated. The contact had taken the vehicle to an independent mechanic where it was discovered that coolant had been leaking from a crack in the intake manifold. The dealer nor the manufacturer had been notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 150,000.
Electrical System
Filed Aug 7, 2021PA
Catalytic converter FAIL, engine idles rough while in park. HIGH Loss of engine power while driving Differentials in back tires are imbalanced…timing FAIL. Steering not calibrated, drivetrain out of sync altogether. Back wheels, left and right; randomly spin & torque hard while car is already in motion on any private road, hidden road, domestic road and high capacity, high speed highway, causing vehicle to fishtail uncontrollably and dangerously, and wildly side to side potentially veering off the road which could result in death unless the driver regains proper control of vehicle. Out of sync car computer and the mechanical devices built into car do not have proper timing performed on those particular moving parts altogether. The car was not manufactured properly mechanically nor electrically altogether. Headlights & electric system etc have an incomplete recall on my vehicle. [XXX] PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
Exterior Lighting › Headlights
Filed Mar 24, 2021150,000 milesSC
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.
Electrical System
Filed Nov 23, 2020130,000 milesMA
SOMETIMES THE HEADLIGHTS FLICK ON AND OFF WHILE DRIVING. THEN WHEN THE CAR IS TURNED OFF, THERE IS A CLICKING NOISE IN THE DRIVER SIDE DASHBOARD THAT CONTINUES UNTIL IT DRAINS THE BATTERY. ALSO, SOMETIMES THE DOOR LOCKS CYCLE OPEN OR CLOSED WHETHER THE CAR IS DRIVING OR OFF. THIS HAS HAPPENED MULTIPLE TIMES AND CAUSED ME TO REPLACE THE BATTERY, AND STILL I HAVE TO JUMP THE CAR FROM TIME TO TIME. THIS HAS HAPPENED SEVERAL TIMES OVER THE PAST FEW YEARS, BUT ONLY NOW HAVE I FOUND THIS SITE TO REPORT IT TO.
Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.
Recall repairs are free for as long as the recall stands. Check whether a specific car still has open work at NHTSA's VIN lookup.
Most recent recall on file: Dec 22, 2015. Source: NHTSA Office of Defects Investigation.