https://plaincars.com/make/mercury-mountaineer New NHTSA complaints and recalls filed for the Mercury Mountaineer. en-us Wed, 23 Sep 2026 06:53:39 GMT https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-2126626 Wed, 03 Sep 2025 00:00:00 GMT 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 https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-2126627 Wed, 03 Sep 2025 00:00:00 GMT 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 https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-2101849 Wed, 18 Jun 2025 00:00:00 GMT 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. Th https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-2092169 Wed, 14 May 2025 00:00:00 GMT 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 https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-2077947 Thu, 27 Mar 2025 00:00:00 GMT 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 h https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1988761 Fri, 03 May 2024 00:00:00 GMT 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 https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1953182 Wed, 27 Dec 2023 00:00:00 GMT 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 standa https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1942691 Mon, 13 Nov 2023 00:00:00 GMT 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. https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1919817 Thu, 17 Aug 2023 00:00:00 GMT Back rear windshield keeps exploding on its own I’m not the only person to complain about this https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1915707 Thu, 03 Aug 2023 00:00:00 GMT 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 https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1915708 Thu, 03 Aug 2023 00:00:00 GMT 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 https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1915709 Thu, 03 Aug 2023 00:00:00 GMT 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 https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1892494 Thu, 04 May 2023 00:00:00 GMT If you set cruise control while driving under 45 mph the engine shuts off. https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1870550 Thu, 02 Feb 2023 00:00:00 GMT The Transmission won't shift into 3rd and 4th gear, hitting hard into gears at starting, slipping begins after 35 mph..replaced torque converter. https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1866676 Thu, 19 Jan 2023 00:00:00 GMT 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 https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1866677 Thu, 19 Jan 2023 00:00:00 GMT 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 https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1861551 Tue, 27 Dec 2022 00:00:00 GMT 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 https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1854270 Thu, 17 Nov 2022 00:00:00 GMT 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. https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1854271 Thu, 17 Nov 2022 00:00:00 GMT 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. https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1834323 Thu, 18 Aug 2022 00:00:00 GMT 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 https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1832457 Wed, 10 Aug 2022 00:00:00 GMT 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 w https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1832458 Wed, 10 Aug 2022 00:00:00 GMT 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 w https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1832459 Wed, 10 Aug 2022 00:00:00 GMT 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 w https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1820117 Sat, 18 Jun 2022 00:00:00 GMT 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 mecha https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1820118 Sat, 18 Jun 2022 00:00:00 GMT 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 mecha https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1820119 Sat, 18 Jun 2022 00:00:00 GMT 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 mecha https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1817519 Tue, 07 Jun 2022 00:00:00 GMT 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 an https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1811811 Tue, 10 May 2022 00:00:00 GMT Heard a pop noise under hood. Engine shut off battery light came on. Went to open hood and there was a fire. https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1805405 Sun, 03 Apr 2022 00:00:00 GMT 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. https://plaincars.com/make/mercury-mountaineer https://plaincars.com/make/mercury-mountaineer#complaint-1774704 Thu, 21 Oct 2021 00:00:00 GMT The contact owns a 2008 Mercury Mountaineer. The contact stated that after parking the vehicle, he was unable to remove the key from the ignition. The contact stated no warning light was illuminated. The contact stated he was able to remove the key after disconnecting the battery. The contact took the vehicle to an independent mechanic and was informed that the steering column lock module needed t