Mercury Mountaineer Complaints

1,992 consumer complaints on file.

#11684759September 3, 2025
ENGINE AND ENGINE COOLING, FUEL SYSTEM, GASOLINE
The contact owns a 2008 Mercury Mountaineer. The contact stated that the check engine warning light was illuminated. The contact stated the vehicle stalled while driving at an undisclosed speed. The contact stated that several attempts were needed to restart the vehicle to continue driving. The contact stated that the gear shifter intermittently failed to move to the intended position. The contact stated that there was an abnormal fuel odor inside the cabin of the vehicle, and the fuel level was lowered sooner than normal. The vehicle was taken to the dealer to be diagnosed; however, the result was not provided. The contact stated that there was a code for an EVAP failure. The vehicle was not repaired. The vehicle was taken to another dealer, Peoria Ford (9130 W Bell Rd, Peoria, AZ 85382) however, the contact was not provided the cause for the failure. The vehicle was taken to an independent mechanic; however, the vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 200,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11667812June 18, 2025
POWER TRAIN
The contact owns a 2007 Mercury Mountaineer. The contact stated that after shifting the transmission from park(P) to reverse(R), the vehicle failed to respond. The contact removed and reinserted the fob key in the ignition to correct the failure. The vehicle was taken to an independent mechanic, who diagnosed that an unknown transmission part needed to be replaced. The vehicle was not repaired. The mechanic instructed the contact to pull the park release lever each time to shift the vehicle out of park (P). The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was approximately 78,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661073May 14, 2025
SEAT BELTS
I buckle the seat belt and it just comes unbuckled spontaneously when I’m driving. I check to see if the seat belt is secure by pulling on it. It seems secure but still unbuckles. I usually have to redo my seatbelt every 5 minutes. I do not feel like it will keep me safe in a collision
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651158March 27, 2025
STRUCTURE:BODY:HOOD:HINGE AND ATTACHMENTS:SUPPORT DEVICE/STRUT
The contact's daughter owns a 2000 Mercury Mountaineer. The contact stated that while her husband and her daughter were inspecting the engine compartment of the vehicle, the hinges of the hood failed, causing the hood to drop inadvertently. The contact's husband sustained a laceration on the arm but did not seek medical assistance. The vehicle was taken to an independent mechanic, where the hood hinges were replaced. Additionally, the contact purchased a stick to hold the hood open. The vehicle was repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was unknown. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11586750May 3, 2024
TIRES:SIDEWALL
My husband had purchased 4 brand new COOPER TIRES EVOLUTION H/T M+S size P235 / 65 R 18 a number of years ago. My husband has since passed away. I cannot find my sales receipt due to the fact my husband had paid for the tires in question. I do not know what he did with the sales receipt. I have a few good-faith efforts and attempts to bring this matter to COOPER TIRES but each and every time I got the same reply from them "NO we cannot help you. We will not be able to warranty your tires for you......we need a sales receipt......" I had my good friend take my vehicle to a local tire dealer and installer recommended by COOPER TIRES and this tire dealer found that: (1) all 4 COOPER TIRES on my vehicle look and are brand new (2) tire tread depth on all 4 COOPER TIRES on my vehicle are 8/32 " (3) three COOPER TIRES on my vehicle show a DOT date code of 2017 and one COOPER TIRE on my car shows a DOT date code of 3817 (4) all four COOPER TIRES on my vehicle have numerous cracks on the sidewall of the tires which is a manufacture defective and COOPER TIRES should replace all 4 tires on my car (5) the right-rear COOPER tire on my vehicle is leaking air from the sidewall due to the cracks. (6) COOPER TIRES should under the law include my tires under their national recall list because the COOPER TIRES on my vehicle have the same (1) make and model tire (2) the exact same size tire (3) all 4 COOPER TIRES on vehicle were made in the same factory as the rest of the recall tires (4) three of the COOPER TIRES on my vehicle have an issue with the date code (see recall NHTSA Campaign Number: 21T014000 for more info). I could go on and on but I think you get the idea. Also, I will hold COOPER TIRES legally liable if I get into a car accident due to its manufacture defective COOPER tires. The exact dates my good friend has contacted COOPER TIRES are: (1) May 01, 2024 (four times); (2) May 02, 2024 (three times). I asked for a call back but nobody returned my call.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11562105December 27, 2023
STEERING
Aftermarket rack and pinion system re-manufactured by Detroit Axel began leaking fluid and caused a loss of power steering within 3 months of purchase. A second unit was installed and after about a year had the exact same failure as the first unit. Also resulting in the loss of power steering. It is my contention that Detroit Axel is not capable of re-manufacturing to a satisfactory safety standard. I believe they should be investigated and perhaps subject to a product recall. I pray nobody has yet been killed by their ineptitude!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11554860November 13, 2023
UNKNOWN OR OTHER
I unlocked my vehicle, put the key in the ignition and it made a noise, then immediately after that failure to start, everything stopped working. No lights, will not lock doors, no clicking sound as if it were a dead battery.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11539086August 17, 2023
UNKNOWN OR OTHER
Back rear windshield keeps exploding on its own I’m not the only person to complain about this
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536245August 3, 2023
POWER TRAIN, FUEL/PROPULSION SYSTEM, WHEELS
The truck bearing keep going out the spark plugs overloaded and I can’t accelerate at times when I’m driving it slows down then starts back up
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11520365May 4, 2023
ENGINE
If you set cruise control while driving under 45 mph the engine shuts off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11505292February 2, 2023
POWER TRAIN
The Transmission won't shift into 3rd and 4th gear, hitting hard into gears at starting, slipping begins after 35 mph..replaced torque converter.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11502548January 19, 2023
ELECTRICAL SYSTEM, SEATS
It happens every time I drive this vehicle. The ignition is lose, so the key jiggles and if their is too much bumping or shaking the key slightly moves and the seat and interior lights come on now I’ve tried Combat the issue with keeping the lights off on the interior and thought maybe I could turn off the seat function still haven’t figured that out yet
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11498964December 27, 2022
ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
The contact owns a 2006 Mercury Mountaineer. The contact stated that her husband informed her that the vehicle had experienced an unknown radiator failure. The vehicle was taken to an independent mechanic, where the radiator was replaced; however, the failure reoccurred. The vehicle was repaired for a second time by an independent mechanic; however, the failure persisted. The local dealer was made aware of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 143,869.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11493929November 17, 2022
SERVICE BRAKES, STEERING
The contact owns a 2009 Mercury Mountaineer. The contact stated while making a left or right turn, she heard an abnormal noise, and the steering wheel became difficult to turn. The contact stated that the Roll Stability Control (RSC) warning light was illuminated. The contact took the vehicle to the local dealer, where it was diagnosed with needing the Roll Stability Control (RSC) to be replaced. The vehicle was repaired but continued to experience the failure. The manufacturer had not been informed of the failure. The failure mileage was approximately 118,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11479984August 18, 2022
UNKNOWN OR OTHER
I was driving on the expressway and my truck just shut off. The car panel Illuminati to a check engine light and a wrench. I had to put on my caution light and make it to the shoulder. That was scary. I sat for 10 minutes before it started back up. I've taken it to the dealership and all they did was guess what the problem could be. They said it might be the fuel pump or something electric or the computer. That's not doing me any good, because I'm still having this problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11478634August 10, 2022
ENGINE, POWER TRAIN, VEHICLE SPEED CONTROL
started losing power ,did not want to go pas 30 miles per hr ,then it ramed up and came to a stop with no acceleration ,i shut it off then start it again and was able to get home at a low rate of speed while continuing to have these problems, another day while far away from home the engine rammed up again minimizing my speed as the transmission was slipping and not go fast then my O/D over drive went on flashing a light ,while the engine kept steady at 20-30 miles per hour while accelerating increasing no speed ,now my SUV will not run wright, it will kick into gear at times constantly and cause problems driving safely ,this is a common problem I'm hearing and reading in the internet with the ford/ mercury mountaineer the manufactory does not want to accept responsibility with this problem ..... this is clear a RECALL ISSUE that needs to be addressed before someone gets killed on the highway by getting rammed by a semi-truck which it almost happened to me !!!! a multi-million dollar law suit is in order if they do not acknowledge and fix this problem
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469915June 18, 2022
ELECTRICAL SYSTEM, STRUCTURE:BODY, POWER TRAIN
Body : to much rust, corrosion, on rear of truck other failure or detachment of exterior body like rear gate frame components, and other structural components that may present a safety hazard. Electrical : electrical systems and items such asa wiring and cable on or inside the door, ignition switch cover detach ,instrument panel and gauges blinking that causes motors and actuators that power mechanical devices like (windows, sunroofs, seats, etc.) Generate some kind of electrical problem that may present a safety hazard. Power train :transmissions, transfer cases fluid hard to check ,electronic control units and shift lever inacurated, drive axles, hubs, shafts, differentials, CV joints star vibration that may present a safety hazard.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11468066June 7, 2022
ELECTRICAL SYSTEM
The contact owns a 2010 Mercury Mountaineer. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the computer had provided an incorrect error code. The vehicle was also diagnosed by an authorized Ford tech who confirmed the failure with the computer. The manufacturer was contacted and informed of the failure. The manufacturer referred the contact to the NHTSA to file a complaint. The vehicle was not repaired. The approximate failure mileage was 109,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11463995May 10, 2022
UNKNOWN OR OTHER
Heard a pop noise under hood. Engine shut off battery light came on. Went to open hood and there was a fire.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11459433April 3, 2022
UNKNOWN OR OTHER
After disconnecting the battery for battery replacement original equipment 6 cd in dash player only shows CD Error. no error number. When investigating on the internet I found over 100 complaints with the same issue. I tried all the corrections suggested but nothing works. I own the car since new has very low mileage. I have 6 diskettes in the unit I cannot eject under any circumstance.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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