NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
13 reports109,000 miles · Jun 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 conf…
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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.
NHTSA ODI #11468066
Mileage unknown · Dec 31, 2019
Interior LightingSeatsService Brakes
TL* THE CONTACT OWNS A 2010 MERCURY MOUNTAINEER. WHILE THE CONTACT'S WIFE WAS DRIVING 70 MPH, SHE DEPRESSED THE BRAKE PEDAL AND THE FRONT DRIVER'S SEAT STARTED TO SLIDE BACKWARDS AND THE INTERIOR LIGHTING ILLUMINATED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE DRIVER LOST CONTROL OF THE VEHICLE AS IT MADE A 360 DEGREE SPI…
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TL* THE CONTACT OWNS A 2010 MERCURY MOUNTAINEER. WHILE THE CONTACT'S WIFE WAS DRIVING 70 MPH, SHE DEPRESSED THE BRAKE PEDAL AND THE FRONT DRIVER'S SEAT STARTED TO SLIDE BACKWARDS AND THE INTERIOR LIGHTING ILLUMINATED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE DRIVER LOST CONTROL OF THE VEHICLE AS IT MADE A 360 DEGREE SPIN. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.
NHTSA ODI #11292295
90,500 miles · Dec 8, 2019
Unknown Or Other
DOORS LOCKING MECHANISM MALFUNCTIONING AND CODING NUMBERS NOT FUNCTIONING. BEING LOCKED OUT WHEN USING CODE #S. CHAIN CRANKIN HARSHLY BUT NOT UNLOCKING DOORS. WHEN USING KEY INSTEAD OF CODE KEY DOES NOT UNLOCK NOR LOCK ANY DOORS EXCEPT DRIVERS DOOR LOCK.
NHTSA ODI #11287792
Mileage unknown · Dec 10, 2018
Power Train
REAR DIFFERENTIAL IS FILLING WITH WATER PASS THE FILL PLUG. THIS IS A GARAGE KEPT CAR AND NEVER OFF ROAD NOR DIRVEN IN DEEP WATER. FIRST TIME DISCOVERED AT 22000 MILES AND THE DEALER REPLACE THE PINION SEAL AND OIL, BUT COULD NOT FIND THE CAUSE. DIFFERENTIAL NOW MAKING NOISE AND AGAIN FULL OF WATER PAST THE FILL PLUG. SEARCH…
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REAR DIFFERENTIAL IS FILLING WITH WATER PASS THE FILL PLUG. THIS IS A GARAGE KEPT CAR AND NEVER OFF ROAD NOR DIRVEN IN DEEP WATER. FIRST TIME DISCOVERED AT 22000 MILES AND THE DEALER REPLACE THE PINION SEAL AND OIL, BUT COULD NOT FIND THE CAUSE. DIFFERENTIAL NOW MAKING NOISE AND AGAIN FULL OF WATER PAST THE FILL PLUG. SEARCHED ONLINE AND FOUND SEVERAL PEOPLE WITH THE SAME PROBLEM WITH FORD PRODUCTS. DEALER CANNOT FIND OR NOT WILLING TO FIND THE CAUSE. CALLED FORD AND THEY OFFER LITTLE TO NO SUPPORT. GUESS THEY ARE WAITING FOR THE DIFFERENTIALS TO LOCK UP AT HIGHWAY SPEED AND KILL A DOZEN OF SO PEOPLE.
NHTSA ODI #11157272
65,000 miles · Jun 26, 2016
EngineFuel/propulsion System
AT HIGH SPEEDS, THE CAR STALLS. IT ALSO STALLS AT STOP LIGHTS. THIS HAPPENS REPEATEDLY, AND FORD CANNOT FIGURE OUT WHAT IS WRONG WITH IT.
NHTSA ODI #10876658
60,000 miles · Sep 29, 2015
Seat Belts
TL* THE CONTACT OWNS A 2010 MERCURY MOUNTAINEER. THE CONTACT STATED THAT WHILE ATTEMPTING TO LATCH BOTH OF THE SECOND ROW SEAT BELTS, THE BELTS FRACTURED AND DETACHED FROM THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN WAS UNABLE TO DETERMINE THE CAUSE OF THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAIL…
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TL* THE CONTACT OWNS A 2010 MERCURY MOUNTAINEER. THE CONTACT STATED THAT WHILE ATTEMPTING TO LATCH BOTH OF THE SECOND ROW SEAT BELTS, THE BELTS FRACTURED AND DETACHED FROM THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN WAS UNABLE TO DETERMINE THE CAUSE OF THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 60,000.
NHTSA ODI #10778536
38,000 miles · Mar 28, 2015
Service Brakes
FRONT BRAKES STARTED AUTOMATICALLY SEIZING UP RANDOM TIMES AND SPEEDS DUE TO A DEFECTIVE WHEEL BEARING THAT DISRUPTED THE ANTILOCK BRAKE SENSORS. THIS CREATED AN EXTREMELY DANGEROUS DRIVING ISSUE. FORD REFUSED TO TAKE RESPONSIBILITY OR PAY FOR ANY REPAIRS BECAUSE IT WAS OUTSIDE THE WARRANTY PERIOD. *TR
NHTSA ODI #10702320
38,000 miles · Oct 5, 2014
Service BrakesSteeringVehicle Speed Control
SEE BELOW FROM: TIER 1 EMAIL - CRCFMC [MAILTO:CRCFMC@FORD.COM] SENT: THURSDAY, MARCH 20, 2014 8:57 AM TO: [XXX] CT: RE: VEHICLE SERVICE ISSUES CRM:01660000000018 HELLO[XXX] MY NAME IS [XXX], I AM FROM FORD`S CUSTOMER RELATIONSHIP CENTER (CRC). I HAVE REVIEWED YOUR EMAIL REGARDING THE CONCERNS ON YOUR 2010 MOUNTAIN…
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SEE BELOW FROM: TIER 1 EMAIL - CRCFMC [MAILTO:CRCFMC@FORD.COM] SENT: THURSDAY, MARCH 20, 2014 8:57 AM TO: [XXX] CT: RE: VEHICLE SERVICE ISSUES CRM:01660000000018 HELLO[XXX] MY NAME IS [XXX], I AM FROM FORD`S CUSTOMER RELATIONSHIP CENTER (CRC). I HAVE REVIEWED YOUR EMAIL REGARDING THE CONCERNS ON YOUR 2010 MOUNTAINEER. I APOLOGIZE FOR ANY INCONVENIENCE THIS HAS CAUSED. FORD MOTOR COMPANY CONSIDERS THE SATISFACTION OF ITS OWNERS TO BE ONE OF ITS MOST IMPORTANT OBJECTIVES. WE COMMIT VERY SUBSTANTIAL RESOURCES AND EFFORT IN A SINCERE ATTEMPT TO RESOLVE THE CONCERNS OF OUR OWNERS. HOWEVER, LIMITS MUST BE PLACED ON THOSE EFFORTS. AFTER CAREFUL CONSIDERATION WE ARE SUPPORTING THE PREVIOUS DECISION AND WILL NOT BE ABLE TO REIMBURSE YOU FOR THE COST OF REPAIRS. THANK YOU FOR CONTACTING FORD MOTOR COMPANY. WE ARE SORRY THAT WE WERE NOT ABLE TO MEET YOUR EXPECTATIONS. SINCERELY, [XXX] CUSTTOMER RELATIONSHIP CENTER FORD MOTOR COMPANY FROM: GENERIC - CRC CONTACT RECEIVED: 3/18/2014 5:45 PM TO: TIER 1 EMAIL - CRCFMC SUBJECT: VEHICLE SERVICE ISSUES WHAT IS YOUR VEHICLE SALES OR SERVICE ISSUE?:THE VEHICLES BRAKES STARTED LOCKING UP WHILE DRIVING. THE CAUSE WAS DUE TO A DEFECTIVE WHEEL BEARING THAT CAUSED THE ANTILOCK BRAKE SENSOR TO MALFUNCTION CREATING AN EXTREMELY DANGEROUS DRIVING SCENARIO WHAT ACTION HAS YOUR DEALER TAKEN TO ADDRESS THE ISSUE?:N/A WHAT ASSISTANCE ARE YOU SEEKING FROM FORD MOTOR COMPANY?:REIMBURSEMENT FOR DEFECTIVE REPAIRS ARE YOU THE OWNER OF THE VEHICLE :YES MILEAGE : 38000 WHERE IS YOUR VEHICLE NOW : INPOSSESSION HAVE YOU CONTACTED THE DEALER :NO INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10641517
38,660 miles · Mar 25, 2014
Service Brakes
FROM: TIER 1 EMAIL - [XXX] SENT: THURSDAY, MARCH 20, 2014 8:57 AM TO: [XXX]SUBJECT: RE: VEHICLE SERVICE ISSUES CRM:01660000000018 [XXX], MY NAME IS [XXX], I AM FROM FORD`S CUSTOMER RELATIONSHIP CENTER (CRC). I HAVE REVIEWED YOUR EMAIL REGARDING THE CONCERNS ON YOUR 2010 MOUNTAINEER. FORD MOTOR COMPANY CONSIDERS …
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FROM: TIER 1 EMAIL - [XXX] SENT: THURSDAY, MARCH 20, 2014 8:57 AM TO: [XXX]SUBJECT: RE: VEHICLE SERVICE ISSUES CRM:01660000000018 [XXX], MY NAME IS [XXX], I AM FROM FORD`S CUSTOMER RELATIONSHIP CENTER (CRC). I HAVE REVIEWED YOUR EMAIL REGARDING THE CONCERNS ON YOUR 2010 MOUNTAINEER. FORD MOTOR COMPANY CONSIDERS THE SATISFACTION OF ITS OWNERS TO BE ONE OF ITS MOST IMPORTANT OBJECTIVES. WE COMMIT VERY SUBSTANTIAL RESOURCES AND EFFORT IN A SINCERE ATTEMPT TO RESOLVE THE CONCERNS OF OUR OWNERS. HOWEVER, LIMITS MUST BE PLACED ON THOSE EFFORTS. AFTER CAREFUL CONSIDERATION WE ARE SUPPORTING THE PREVIOUS DECISION AND WILL NOT BE ABLE TO REIMBURSE YOU FOR THE COST OF REPAIRS. THANK YOU FOR CONTACTING FORD MOTOR COMPANY. WE ARE SORRY THAT WE WERE NOT ABLE TO MEET YOUR EXPECTATIONS. [XXX]FORD MOTOR COMPANY ------------------- ORIGINAL MESSAGE ------------------- FROM: GENERIC - CRC CONTACT RECEIVED: 3/18/2014 5:45 PM TO: TIER 1 EMAIL - CRCFMC WHAT IS YOUR VEHICLE SALES OR SERVICE ISSUE?:THE VEHICLES BRAKES STARTED LOCKING UP WHILE DRIVING. THE CAUSE WAS DUE TO A DEFECTIVE WHEEL BEARING THAT CAUSED THE ANTILOCK BRAKE SENSOR TO MALFUNCTION CREATING AN EXTREMELY DANGEROUS DRIVING SCENARIO WHAT ACTION HAS YOUR DEALER TAKEN TO ADDRESS THE ISSUE?:N/A WHAT ASSISTANCE ARE YOU SEEKING FROM FORD MOTOR COMPANY?:REIMBURSEMENT FOR DEFECTIVE REPAIRS ARE YOU THE OWNER OF THE VEHICLE :YES VIN : [XXX] MILEAGE : 38000 WHERE IS YOUR VEHICLE NOW : INPOSSESSION HAVE YOU CONTACTED THE DEALER :NO DEALER NAME : N/A INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10574800
31,000 miles · Oct 14, 2013
Service BrakesStructureVehicle Speed Control
THERE IS A MANUFACTURING FAULT WITH THE POSITION OF THE BRAKE AND THE GAS PEDAL. IT IS VERY EASY TO MOVE THE RIGHT FOOT FROM THE GAS TO THE BRAKE AND LEAVE ENOUGH OF THE FOOT ON THE GAS AT THE SAME TIME. IT ALLOWS THE BRAKE TO BE PRESSED BUT ALSO APPLIES GAS TO GIVE A VEHICLE A SURGE WHILE BRAKING. HAD THE SAME SITUATION WITH…
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THERE IS A MANUFACTURING FAULT WITH THE POSITION OF THE BRAKE AND THE GAS PEDAL. IT IS VERY EASY TO MOVE THE RIGHT FOOT FROM THE GAS TO THE BRAKE AND LEAVE ENOUGH OF THE FOOT ON THE GAS AT THE SAME TIME. IT ALLOWS THE BRAKE TO BE PRESSED BUT ALSO APPLIES GAS TO GIVE A VEHICLE A SURGE WHILE BRAKING. HAD THE SAME SITUATION WITH A 2001 FORD TAURUS AND FORD ISSUED A RECALL NOTICE TO HAVE THE PLACEMENT OF PEDALS CHANGED. *TR
NHTSA ODI #10547840
NHTSA investigations
1AQ10001 · Fleet Vehicle Recall Completion Audit
Opened Nov 18, 2010 · Closed Dec 28, 2015
Status: closed (inferred from source dates) · Unknown Or Other
On November 18, 2010, NHTSA's Recall Management Division (RMD) opened an audit query (AQ10-001) to investigate recall remedy completion by rental car companies on safety recall campaigns.It was expected to provide the agency an indication of how completely and how quickly rental car fleets perform necessary recall-related remedies on the vehicles owned and then rented/leased for use on the roadways.RMD queried three (3) major motor vehicle manufacturers (Ford, Chrysler, and General Motors) and requested data regarding completion figures for fifteen (15) discreet safety recalls.Analysis of this data demonstrated that rental car recalls completion was neither complete nor consistent.The rental car companies representing the largest market share in the industry were then queried as to their respective policies for the rental, lease, and sale of vehicles with open recalls.The data and responses from the manufacturers and the rental car companies can be found in the document repository by accessing the ?Associated Documents link above.In December 2015, Congress enacted the Fixing America's Surface Transportation (FAST) Act.One section of the Act prohibits rental car companies from renting, leasing, or selling motor vehicles subject to open safety recalls.With the passage of the FAST Act and its prohibition, there is no continuing need for the agency to investigate rental car recall completions.Accordingly, this investigation is closed.The agency reserves the right to open any future investigations, including audits of individual recalls, or groups of recalls, or rental car companies, to examine more closely safety recalls performance and completion issues in this area.