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.
The worst 2005 Mercury Grand Marquis problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Lights293
- Electrical75
- Airbags67
- Acceleration39
- Seat belts36
- Steering20
- Brakes18
- Engine14
- Body11
- Visibility11
- Tires8
- Transmission5
- Driver assistance4
- Fuel system2
- Seats2
- Suspension2
- Locks1
- Wheels1
Specific symptoms reported on the 2005 Mercury Grand Marquis
Headlights 254Airbag light 56Sudden acceleration 11Seat belt 8Adaptive cruise 7No deployment 7Stalling 6Wipers 6Tire blowout 5
Recalls 4
Exterior lighting: headlights
- What is wrong
- 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.
Recall number 15V861000 · Recall details
Steering: rack and pinion: pinion shaft
- What is wrong
- Ford Motor Company (Ford) is recalling certain model year 2005-2011 Ford Crown Victoria, 2005-2011 Mercury Grand Marquis vehicles manufactured March 23, 2004, to August 30, 2011, and 2005-2011 Lincoln Town Car vehicles manufactured March 8, 2004, to August 30, 2011, and on which the upper intermediate shaft was serviced during the course of safety recall 13V‑385. The prior repairs may not have been correctly performed.
- Risk
- Improper servicing of the upper intermediate shaft could cause the shaft to separate, which can then result in a loss of steering control, and increasing the risk of a crash.
- Remedy
- Ford will notify the owners of vehicles whose repair records reflect that the upper intermediate steering shaft was repaired during the course of the prior recall 13V‑385. Dealers will inspect and replace the upper immediate shaft if necessary free of charge. The recall began November 17, 2014. Owners may contact Ford customer service at 1‑866‑436‑7332. Ford's number for this recall is 14S25.
Recall number 14V704000 · Recall details
Steering
- What is wrong
- Ford is recalling certain model year 2005-2011 Ford Crown Victoria (including Crown Victoria Police Interceptors), Mercury Grand Marquis, and Lincoln Town Car vehicles. The affected vehicles are currently registered or were originally sold in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin. Severe corrosion can seize the lower intermediate shaft which may cause the upper intermediate shaft to collapse and the steering column lower bearing to separate.
- Risk
- If the lower bearing separates, the vehicle may experience a loss of steering, increasing the risk of a crash.
- Remedy
- Ford will notify owners and dealers will replace the lower intermediate shaft, free of charge. The upper intermediate shaft and steering column lower bearing will be inspected to identify any damage that may have occurred as a result of lower intermediate shaft corrosion, and repaired or replaced as necessary. If the steering column lower bearing has separated, a retainer clip will be installed. The recall began on October 23, 2013. Owners may contact Ford at 1‑866‑436‑7332. Ford's recall number is 13S08.
Recall number 13V385000 · Recall details
Electrical system: 12v/24v/48v battery: cables
- What is wrong
- On certain passenger vehicles, the battery cable includes a fusible link that may contact and subsequently chafe on a #2 cross member attaching bolt.
- Risk
- This condition may result in heat damage and could lead to a fire.
- Remedy
- Dealers will inspect the fusible link and position it away from the cross member bolt. If the fusible link has already chafed and copper wires have been exposed, the fusible link will be replaced. The recall began on november 18, 2005. Owners may contact ford at 1‑800‑392‑3673, or lincoln/mercury at 1‑800‑521‑4140.
Recall number 05V518000 · Recall details
See all 4 recalls for the 2005 Mercury Grand Marquis
Defect investigations
Loss of headlights
The Office of Defects Investigation (ODI) opened an investigation concerning the loss of headlights in model year (MY) 2003-2005 Ford Crown Victoria and Mercury Grand Marquis vehicles. The subject vehicles share the same architecture and major components.ODI has received 636 unique reports (for all submission dates) related to the alleged defect, with owners describing a loss of both low and/or high beam headlights occurring while driving.ODI identified 4 Vehicle Owner Questionnaire ( VOQ) reports alleging minor crash or loss of control incidents due to headlight failures.Drivers alleged running off of the road due to a lack of headlights and one driver reportedly struck a deer.No injuries were indicated in the VOQ crashes.In response to ODI's Information Request (IR) letter, Ford Motor Company (Ford) responded with 4173 unique reports related to the alleged problem.There were a total of 11 crashes reported within that group as well as one injury that occurred when the vehicle struck an unseen object on the side of the road when the headlights failed. Ford also submitted 49,843 warranty claims related to headlight failures.Most reports indicate that the headlights failed without warning leaving the driver with no forward lighting, however some noted the headlights flickered or dimmed prior to turning off.Consumers also noted they were able to hold the flash to pass lever on the steering column mounted stalk to activate the high beams however this is only effective as long as the lever is physically actuated.On December 21st, 2015 Ford notified ODI that it would conduct a safety recall (15V‑861) to remedy headlight failures on (MY) 2003-2005 Ford Crown Victoria and Mercury Grand Marquis vehicles.According to Ford, the headlights of the vehicle are controlled by the Lighting Control Module (LCM) located in the engine compartment of the vehicle.The LCM uses an internal relay, mounted to a circuit board, to control power to the headlights. The headlight relay is soldered to the circuit board at six different terminals. The original equipment LCMs were manufactured in a manner that resulted in the solder joints fatiguing and/or cracking as a result of repeated thermal cycling and/or vibration, a defect condition. The condition could be exacerbated by manufacturing quality issues such as an insufficient amount of solder, effecting the continuity between the circuit board and the relay terminal, and resulting in loss of headlights while driving.Other lighting functions are unaffected by this condition.The LCM manufacturing processes were revised to address the defect condition and Ford has been conducting a warranty extension program to cover defective LCMs since late 2013.Under the recall Ford will replace any remaining defective LCMs in recalled vehicles with remedy LCMs once they become available.See the federal safety agency recall 15V‑861 for further details on the safety recall.The recall action initiated by Ford addresses the safety risks of concern to ODI.Accordingly, the investigation is closed.The ODI reports cited above can be reviewed at under the identification (ODI) numbers found in the attached list.
PE15028
Loss of headlamp/exterior lighting
In a letter dated October 2, 2014 the Office of Defects Investigation (ODI) was initially petitioned by the North Carolina Consumers Council, Inc. requesting a defect investigation of an alleged defect condition resulting in headlight and/or exterior lighting failure on 2003-2005 Ford Crown Victoria and Mercury Grand Marquis vehicles.ODI analyzed Vehicle Owner Questionnaire (VOQ) complaints received from consumers and identified a total of 605 reports (for all submission dates) alleging headlight failure.The complaints indicate failures of both low beam headlights typically while driving, a defect condition that was evaluated under a prior ODI investigation (PE08066).Most consumer VOQs indicate that the headlights failed suddenly and without warning leaving the driver with no forward lighting, however some report the headlights flickered or dimmed prior to turning off.In some cases drivers were able to turn the headlights back on after a period of time while others reported the headlights would not come back on at all.Consumers noted they were able to hold the flash to pass lever on the steering column mounted stalk to activate the high beams however this is only effective as long as the lever is actuated.ODI identified 4 VOQ reports alleging minor crash or loss of control incidents due to headlight failures.Drivers indicated running off of the road due to a lack of headlights and one driver reportedly struck a deer.No injuries were indicated in the VOQ crashes.In response to ODI's April 7, 2015 Information Request letter, Ford provided data indicating it has received 3,092 complaints of failed headlights related to the Lighting Control Module (LCM), a device that controls the headlights and other lighting functions.This number includes the complaints Ford reviewed and classified as headlight failure due specifically to the LCM.Within Ford's complaints, there are 11 reports alleging a crash occurred.These drivers reported hitting objects, including other vehicles after the headlights failed causing damage to the affected vehicles.One driver was injured when their car struck an unseen object in the road, jerking the steering wheel from their hands and injuring their shoulder.In total 15 crash allegations were identified, all of which have occurred since ODI's prior evaluation of this issue.This petition has been granted.Preliminary Evaluation PE15-028 has been opened to assess the scope, frequency, and safety-related consequences of the alleged defect.The ODI reports cited above can be reviewed at www-odi.the federal safety agency.dot.gov/owners/Sarchreference under the identification (ODI) numbers found in the attached list.
DP15002
Steering Column Shaft Obstruction
On July 7, 2014 the Office of Defects Investigation (ODI) opened a preliminary evaluation based on five complaints (VOQs) alleging incidents ofinterference between dislodged exhaust manifold heat shields and the lower steering shaft/knuckle, including one alleging the interference resulted in a crash on a highway entrance ramp. Since opening this investigation, ODI has received four additional owner complaints.One indicated that the shield was removed before binding could occur.The other three occurred at low speed and produced some momentary steering binding that was overcome by the driver when additional steering effort was applied.Once the shield was repaired or removed, the steering returned to normal.The single incident ODI identified as a possible crash (VOQ No. 10578715) related to this condition could not be verified and the description of the crash in the complaint was not supported by the police accident report.No additional crash allegations have been identified related to the alleged defect condition.Information provided by Ford in its September 10, 2014 response to ODI's information request letter identified 10 additional incidents resulting in a low rate of 1.6 incidents per 100,000 vehicles sold in vehicles ranging from 7 to 11 years in service.Six of these incidents were reported by a single source, a state police fleet that corrected the problems in March 2011 and has not reported any additional failures since.Ford also reported 5 warranty claims, but these incidents occurred at very low mileages and appeared to be caused by loose or missing heat shield attachment hardware rather than the corrosion condition that was the cause of the more recent incidents and the focus of this investigation.This investigation is closed. The closing of this investigation does not constitute a finding by the federal safety agency that a safety-related defect does not exist. The Agency will continue to monitor complaints and other information relating to the alleged defect in the subject vehicles and take further action in the future if warranted.The following VOQs are associated with this investigation:10643753, 10615584, 10611362, 10610451, 10578715, 10479681, 10471833, 10317493.
PE14021
Loss of headlight function
The agency has closed this investigation based on its review of complaint reports, field and technical data provided by ford and complainant interviews. Ford found that some lighting control modules (lcm) in the subject vehicles contained defective solder joints on the printed circuit board.this condition can lead to poor headlight performance ranging from intermittent outage and dimming to eventual headlights failure.the failure does not affect other lighting functions (park, emergency flasher, brake and flash to pass lights).the agency is aware of a total of 306 consumers complaints and no report of crash, injury or fatality.ford reports 2,074 warranty claims related to headlight failure linked to the lcm during the first three years of operation.about 12% (247) of these claims are specific to headlight failure while driving.the average warranty rate for headlight failing while driving is low (0.05%).ford reports a slightly higher warranty rate experienced for the crown victoria police interceptor vehicles and this is attributed to the higher duty cycle of these vehicles (headlights on for longer periods).a safety-related defect has not been identified at this time and further use of agency resources does not appear to be warranted.accordingly, this investigation is closed.the closing of this investigation does not constitute a finding by the federal safety agency that a safety-related defect does not exist.the agency will monitor this issue and reserves the right to take further action if warranted by the circumstances.
PE08066
Technical service bulletins for the 2005 Mercury Grand Marquis 32
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust
- The Powertrain Control/Emissions Diagnosis (PC/ED) manual has been revised for diagnosing electronic...
- For 2005-2012 Crown Victoria, 2005-2011 Grand Marquis and Town Car vehicles, Regional Program 13R01...
- Inpected or repaired under 13R01
- Summary to be provided on a future date.
- Ford: the lower intermediate steering shaft, has corrosion of swing link joints, combined with collapsed...
- Ford: the lighting control module has extended warranty coverage, on certain vehicles, due to a possible...
- Ford: information regarding the lighting control module extended warranty coverage, for some vehicles, to...
- Ford/lincoln/mercury: if battery was disconnected or dead, vehicles/trucks may experience hard starts and...
- Ford/mercury/lincoln: vehicles may exhibit one or more of the following symptoms: drive away hesitation,...
2005 Mercury Grand Marquis fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 4.6L 8‑cyl | RWD | 16 | 23 | 19 |
What 2005 Mercury Grand Marquis owners say
Most recent owner complaints, unedited.
The contact owns a 2005 Mercury Grand Marquis. The contact stated while attempting to make a left turn, the steering wheel failed to operate as intended causing the contact to have driven straight instead of turning. No warning light was illuminated. An independent mechanic was contacted. The vehicle was towed to an independent mechanic where it was diagnosed as the steering column needed to be replaced. The vehicle was repaired, as the steering column was replaced twice. The contact mention the failure has a occurred on two different occasions. The manufacturer was notified of the failure, and they offered no assistance. The failure mileage was 145,000.
my brother got me this vehicle five yrs ago, and ever since then the air bag light has been on,i have no idea of why it is on, i don't know if it is the fuse, i don't know if there is even a air bag is in the vehicle my brother got the vehicle up in vermont, i have a pending cl# [XXX] on another issue, thank you so much, deeply appreciated, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
my vehicle was running fine, than all of a sudden the transmission would not shift, i was like omg, what is going on, i had my son with me, my son was driving, he was so scared, i was like take a side street, stay level ground, we coasted down pro tech, [XXX] , that is where the car is now, bill told us,my son and i that the transmission fluid is burnt, when i looked at it the fluid was red,and did not smell burnt, this happened [XXX], i do not understand this at all, i am trying to get help through my insurance company, my claim #[XXX], SAFETY INSURANCE, there was transmission fluid on the dipstick red, INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
My wife has a 2005 Mercury Grand Marquis. This vehicle has what I believe is an extremely unsafe placement of the brake and accelerator pedals. The pedals are extremely close together, closer than I have ever seen on any other vehicle. My wife has depressed the accelerator while pressing the brake pedal on more than one occasion. We went recently for an oil change. The technician pressed the accelerator while pressing the brake pedal while putting the vehicle into reverse. The vehicle lunged into the parking lot. Fortunately, there were no vehicles behind my vehicle. If the technician had been shifting from neutral into drive, he would have driven into the building. The technician said that he has had similar experiences with Ford vehicles and that one of his relatives has a Ford and that this is a frequent experience with that vehicle. I am a disabled Veteran with a below knee amputation of the right leg. I have had no problem driving vehicles before this one. I have stopped driving this vehicle because I believe it is a crash waiting to happen. I have asked numerous people to sit in the vehicle and see if they feel that the pedals are too close together. To date, all have said that they feel that the pedals are too close together and that they would not drive the vehicle in question because they also feel that this vehicle and no doubt other Ford vehicles with this pedal arrangement are crashes waiting to happen. I request that the federal safety agency look into the pedal arrangement of this vehicle and all Ford vehicles as I believe this arrangement is a safety hazard that is on the highways of America and may have contributed or directly caused numerous crashes since at least 2005.
I bought this car from some stranger who doesn’t care about my shoulder pains driving a car with the steering wheel upside down these part stores & insurance companies get theirs can I please get what’s due to me so tired of the brakes making my steering wheel jerk & didn’t have any heat in a car I’ve spent my entire check on I really can’t believe this much over a faulty can I get some type of reimbursements for my pain & suffering from driving this guy’s high school car even if it looked like it did brand new pipes falling apart [XXX] won’t stop over heating caused me to run off the road because windows can’t let right window down it’s so much I can say but I rather not thanks this is devastating to me & my child kid doesn’t wanna feel like his dad I has no say so for him or his own child driving in guy’s [XXX] did one thing some else messes up it has caused me so much grief & mental attacks trying to keep this guy car maintained I’ve tried trade ins but they’ve told me that the car wasn’t worth nothing but $700 what can I do with that basically paid my entire earnings out on a Car I love my step son I just don’t want him to feel like I’m a bad person because I’m dealing with financial stability [XXX] I’ve paid so much & I want my happiness one way or another crooks on social media lined up to [XXX] me you & the next with this false narratives & defected goods [XXX] my great grandpa doesn’t like the way this one car has caused me so much pain going in these rich stores buying parts & being ripped off because the car isn’t stable enough to hold up what I’ve fixed [XXX] it’s going to go on for the rest of my life & I’m scared. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
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.
Seat belt does not fully clip in to buckle and tends to come undone while in operation of motor vehicle furthermore requires occupant to wiggle buckle back and forth to attempt to get a good connection between the two, belt and buckle.
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.
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.
Compare the 2005 Mercury Grand Marquis
Other model years
1990199119921993199419951996199719981999200020012002200320042005200620072008200920102011
Questions about the 2005 Mercury Grand Marquis
Is the 2005 Mercury Grand Marquis reliable?
Owners have filed 488 complaints about the 2005 Mercury Grand Marquis, 5.1 times a typical Grand Marquis model year. It is one of the years we flag to avoid.
What is the 2005 Mercury Grand Marquis year score?
The 2005 Mercury Grand Marquis scores 14 out of 100 (poor). The score compares it with the other model years of the Mercury Grand Marquis: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2005 Mercury Grand Marquis?
Lights, with 293 complaints, typically around 78,252 miles. Next is electrical (75).
How many recalls does the 2005 Mercury Grand Marquis have?
4 recalls, covering exterior lighting, steering and electrical system.
Was there a recall on the 2005 Mercury Grand Marquis lights?
Yes, 1 recall: 15V861000. Check your VIN to see if your car still needs the free repair.
What year does the Mercury Grand Marquis have the most lights problems?
The Mercury Grand Marquis model years with the most lights complaints are 2005 (293 complaints), 2004 (209 complaints) and 2003 (207 complaints).
What gas mileage does the 2005 Mercury Grand Marquis get?
Official estimates for the 2005 Mercury Grand Marquis range from 19 mpg combined. The most efficient version (4.6L 8-cyl, RWD) gets 16 city and 23 highway.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2005 Mercury Grand Marquis?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history