NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
117 reports143,869 miles · Dec 27, 2022
Engine And Engine Cooling
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 independe…
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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.
NHTSA ODI #11498964
Mileage unknown · Sep 5, 2021
Unknown Or Other
My shifter continuously won’t come out of park. Multiple other people with the same kind of vehicle have posted on forums with the same issue. It’s happened weekly for a year or more. I keep getting told there’s a recall on it but can’t find it.
NHTSA ODI #11431823
Mileage unknown · Jul 18, 2021
Unknown Or Other
There is a known issue with the cluster panel’s relay that has caused my headlights to flash off and on randomly as it malfunctions.
NHTSA ODI #11425317
Mileage unknown · Apr 22, 2021
Power TrainVehicle Speed ControlWheels
MY CAR WILL JERK AS I'M DRIVING RPMS GOING HIGH WHILE NO SPEED IS PICKING UP. WITH JUMP OUT OF GEAR WHEN AT STOP LIGHT. LOUD GRINDING NOISE FROM TIRES COULD HAVE FOOT ALL THE WAY DOWN ON GAS PETAL AND GO NO FASTER.
NHTSA ODI #11413469
123,000 miles · Oct 20, 2019
Structure
2006 MERCURY MOUNTAINEER, 123,000 MILES. NOTICE (BOTTOM) OF BOX SUBFRAME, LOCATED REAR DRIVER SIDE ONLY. FOWARD OF REAR AXLE, HAS EXCESSIVE CORROSION IN A LENGTH OF 8 TO 10 INCHES. CORROSION HAS ROTTED THROUGH THIS AREA. VEHICLE HAS 123000 MILES ON IT. ALSO VEHICLE HAS SURFACE CORROSION ALL OVER BOTTOM OF SUBFRAME. FORD DID N…
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2006 MERCURY MOUNTAINEER, 123,000 MILES. NOTICE (BOTTOM) OF BOX SUBFRAME, LOCATED REAR DRIVER SIDE ONLY. FOWARD OF REAR AXLE, HAS EXCESSIVE CORROSION IN A LENGTH OF 8 TO 10 INCHES. CORROSION HAS ROTTED THROUGH THIS AREA. VEHICLE HAS 123000 MILES ON IT. ALSO VEHICLE HAS SURFACE CORROSION ALL OVER BOTTOM OF SUBFRAME. FORD DID NOT APPLY CORROSION COATINGS ON THIS SUB FRAME PROPERLY. THIS COULD BE A HAZARD FOR OTHER VEHICLES AS WELL AS TIME GOES ON. NOTICE OTHER FORD VEHICLES HAVE NUMEROUS PROBLEMS AND RECALLS WITH SUB FRAME CORROSION, RANGING FROM 2001 THROUGH 2014. FORD'S VENDORS THAT FABRICATE THESE PARTS SHOULD BE UPDATED WITH MODERN PROCEDURES TO APPLY CORROSION PREVENTED COATINGS ON THESE PARTS PROPERLY. SHOULD BE A RECALL ON THESE SECTIONS FOR REPAIR... NO ACCIDENTS, NO ISSUES, AS TIME GOES ON THERE MAYBE PROBLEMS IN THE FUTURE WITH FORD PRODUCTS SUB FRAME CORROSION RESULTING IN ACCIDENTS ON ROADS.
NHTSA ODI #11269593
166,000 miles · Apr 8, 2019
Power Train
THE GEAR SHAFT WILL STOP MY CAR FROM STARTING WHEN I TURN IT OFF. IT WILL ALSO MAKE MY CAR VUT OFF WHILE DRIVING..THE BUTTON ON THE GEAR STICK WILL GET STUCK AND I AM ABLE TO SHIFT GEARS...WHEN THE CAR IS NOT STARTED AND MY FOOT IS NOT ON THE BREAKS. EVEN WHEN THE BUTTON IS NOT STUCK, IT STILL WILL GET STUCK IN PARK AND WONT LE…
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THE GEAR SHAFT WILL STOP MY CAR FROM STARTING WHEN I TURN IT OFF. IT WILL ALSO MAKE MY CAR VUT OFF WHILE DRIVING..THE BUTTON ON THE GEAR STICK WILL GET STUCK AND I AM ABLE TO SHIFT GEARS...WHEN THE CAR IS NOT STARTED AND MY FOOT IS NOT ON THE BREAKS. EVEN WHEN THE BUTTON IS NOT STUCK, IT STILL WILL GET STUCK IN PARK AND WONT LET ME START MY CAR..A RECALL SHOULD BE STARTED..BECAUSE I HAVE SEEN OTHERS ON HERE WITH SIMILAR COMPLAINTS..SO ITS A MANUFACTURING ACCIDENT NOT THE CONSUMER.
NHTSA ODI #11194823
100,000 miles · May 26, 2018
Electrical SystemSeatsUnknown Or OtherCrash
THE DRIVER SEAT MOTOR MESSED UP CAUSING THE TO BE STATIONARY. THE SEAT WONT MOVE FORWARD AND BACKWARD.THE AIR CONDITIONING ON THE DRIVER SIDE DOESN'T BLOW COLD , THE DASH AND RADIO LIGHTS BRIGHTEN AND DIM SPORADICALLY AND THE THIRD ROW SEATS DON'T WORK, THE GEAR STRIPPED OUT. ALSO, THE BUSHINGS ON THE FEONT AND REAR HAVE HAD TO …
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THE DRIVER SEAT MOTOR MESSED UP CAUSING THE TO BE STATIONARY. THE SEAT WONT MOVE FORWARD AND BACKWARD.THE AIR CONDITIONING ON THE DRIVER SIDE DOESN'T BLOW COLD , THE DASH AND RADIO LIGHTS BRIGHTEN AND DIM SPORADICALLY AND THE THIRD ROW SEATS DON'T WORK, THE GEAR STRIPPED OUT. ALSO, THE BUSHINGS ON THE FEONT AND REAR HAVE HAD TO BE REPLACED.
NHTSA ODI #11098075
Mileage unknown · Jan 9, 2018
Unknown Or Other
I LIVE IN QUINCY, MA. WHEN IT SNOWS OR GETS COLD THE CAR INTERMITTENTLY, MAJORITY OF TIME IN REVERSE, LOCKS IN REVERSE, SELF ACCELERATING, AND EVEN WHEN I BRAKE IT OVERRIDES THE BRAKING SYSTEM. LAST NIGHT IT ACTUALLY SELF DISPLAYED THE 4X4 LIGHT ON DASHBOARD. WHEN I MEAN ACCELERATES, I MEAN UNCONTROLLABLE ACCELERATION.
NHTSA ODI #11061367
42,000 miles · Sep 7, 2017
EngineFuel/propulsion SystemUnknown Or Other
I PURCHASED THIS VEHICLE RECENTLY WITH ONLY 40,000 MILES. THE CAR KEEPS STALLING OR DYING AS YOU MAY SAY AS I DRIVE. IT WILL BE OKAY FOR A SHORT PERIOD OF TIME AND THEN JUST DIE RIGHT ON THE HIGHWAY! ONCE IT DIES ONCE, THE CAR WILL CONTINUE TO DO SO OVER AND OVER AGAIN UNTIL THE ENGINE HAS COOLED DOWN. I HAVE THE ENGINE CODE…
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I PURCHASED THIS VEHICLE RECENTLY WITH ONLY 40,000 MILES. THE CAR KEEPS STALLING OR DYING AS YOU MAY SAY AS I DRIVE. IT WILL BE OKAY FOR A SHORT PERIOD OF TIME AND THEN JUST DIE RIGHT ON THE HIGHWAY! ONCE IT DIES ONCE, THE CAR WILL CONTINUE TO DO SO OVER AND OVER AGAIN UNTIL THE ENGINE HAS COOLED DOWN. I HAVE THE ENGINE CODES OF P2104, P2111 AND P2135 WITH A REFERE TO P2101. I HAVE BROUGHT IT TO SEVERAL MECHANICS AND PAID WELL OVER $1,000 TO FIX THIS PROBLEM AND IT JUST CONTINUES. I AM AFRAID MY FAMILY MAY ALL DIE! WERE ON 93 RECENTLY HEADING TOWARD BOSTON AND MY CAR DIED RIGHT AT THE INTERSECTION OF 495. I HAD ALL MY CHILDREN IN THE CAR AND IT WOULD NOT RESTART. I HAVE FIXED THE FUEL SYSTEM (ERROR CODE LAST TIME), HAD A COMPLETE TUNE UP, AND THROTTLE SENSOR ETC.
NHTSA ODI #11022125
154,758 miles · Jan 17, 2017
Power Train
TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. WHILE THE VEHICLE WAS STATIONARY, IT WOULD NOT REVERSE WHEN PROMPTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 154,758.
NHTSA ODI #10945763