NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
81 reports130,000 miles · Nov 4, 2017
Power TrainStructureVehicle Speed ControlCrash
MY 2007 MERCURY MOUNTAINEER NEVER HAD ANY PROBLEMS UNTIL RECENTLY, THOUGHT IT WAS THE TRANSMISSION BECAUSE OF THE WAY IT DROVE. TOOK IT TO THE MECHANIC AND GOT TRANSMISSION FLUID PUT IN BUT THE PROBLEMS REMAINED THE SAME AND WAS TOLD THE TRANSMISSION WAS FINE. MY THERMOSTAT HOUSING UNIT WAS LEAKING (THIS IS VERY COMMON WITH THES…
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MY 2007 MERCURY MOUNTAINEER NEVER HAD ANY PROBLEMS UNTIL RECENTLY, THOUGHT IT WAS THE TRANSMISSION BECAUSE OF THE WAY IT DROVE. TOOK IT TO THE MECHANIC AND GOT TRANSMISSION FLUID PUT IN BUT THE PROBLEMS REMAINED THE SAME AND WAS TOLD THE TRANSMISSION WAS FINE. MY THERMOSTAT HOUSING UNIT WAS LEAKING (THIS IS VERY COMMON WITH THESE CARS AND VERY DANGEROUS, NEEDS IMMEDIATE ATTENTION!) AND HAD CAUSED VERY EXPENSIVE WIRING ISSUES. ALMOST ACTS EXACTLY LIKE THE TRANSMISSION IS GOING OUT - RPM'S ARE WAY TOO HIGH, THE VEHICLE WOULD NOT ACCELERATE IN THE MIDDLE OF CITY TRAFFIC, THE CAR JUMPED AT A STOPLIGHT AND CAUSED ME TO HIT THE CAR IN FRONT OF ME, AND IT DOESN'T SHIFT PROPERLY. PROBLEMS OCCURRED OUT OF NOWHERE AND ARE TOO DANGEROUS TO BE IGNORED BUT VERY EXPENSIVE TO BE FIXED. ITS VERY COMMON AND SHOULD BE RECALLED BEFORE SOMEONE GETS SERIOUSLY INJURED!!!!
NHTSA ODI #11043298
102,000 miles · Oct 24, 2017
Electrical SystemExterior LightingSeats
UPON DRIVING ON THE FREEWAY THE INSIDE DOME LIGHTS CAME ON AND MY SEAT STARTED ADJUSTING ITSELF BACK AND FORTH WHILE DRIVING.
NHTSA ODI #11039428
65,000 miles · Mar 13, 2017
Seats
THE DRIVERS SEAT, WILL, WITHOUT WARNING, WHILE DRIVING ON THE INTERSTATE, AUTOMATICALLY START MOVING BACKWARDS TO IT'S DEFAULT POSITION. SOMETIMES THE INTERIOR LIGHT WILL COME ON SIMULTANEOUSLY. IN A PANIC, SO FAR, I HAVE BEEN ABLE TO STOP THE BACKWARD MOVEMENT BY GRABBING THE SEAT POSITION BUTTON AND FORCING IT TO MOVE BACK U…
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THE DRIVERS SEAT, WILL, WITHOUT WARNING, WHILE DRIVING ON THE INTERSTATE, AUTOMATICALLY START MOVING BACKWARDS TO IT'S DEFAULT POSITION. SOMETIMES THE INTERIOR LIGHT WILL COME ON SIMULTANEOUSLY. IN A PANIC, SO FAR, I HAVE BEEN ABLE TO STOP THE BACKWARD MOVEMENT BY GRABBING THE SEAT POSITION BUTTON AND FORCING IT TO MOVE BACK UP TO THE PRESET POSITION WHERE I HAVE BEEN ABLE TO GET MY FEET BACK ON THE PEDALS. THIS HAS OCCURRED MULTIPLE TIMES WHILE DRIVING FULL SPEED ON INTERSTATES, ON SIDE STREETS AND FRONTAGE ROADS AND EVERYTIME WITHOUT WARNING. ONE TIME, WHILE SITTING AT A STOP SIGN, I COULD NOT CATCH IT QUICKLY ENOUGH AND IT MOVED SO FAR BACK THAT MY FEET COULD NOT REACH ANY OF THE PEDALS! LUCKILY THAT TIME I WAS SITTING STILL. THIS HAS BEEN HAPPENING FOR THREE YEARS.
NHTSA ODI #10965781
87,000 miles · Aug 12, 2016
Electrical SystemSeats
TL* THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. WHILE DRIVING AT AN UNKNOWN SPEED, THE DRIVER'S SEAT ADJUSTED ON ITS OWN. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE IGNITION NEEDED TO BE REPLACED. THE REPAIR WAS NOT MADE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS UNKNOWN. THE FAILURE…
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TL* THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. WHILE DRIVING AT AN UNKNOWN SPEED, THE DRIVER'S SEAT ADJUSTED ON ITS OWN. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE IGNITION NEEDED TO BE REPLACED. THE REPAIR WAS NOT MADE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 87,000. UPDATED 09/29/16*LJ THE CONSUMER STATED THE PISTON TYPE HOOD HOLDING SYSTEM FAILED. THE HOODCAME CRASHING DOWN.UPDATED 08/09/2017*JS
NHTSA ODI #10895426
40,002 miles · Mar 19, 2016
Electrical SystemSeats
WHEN DRIVING THE VEHICLE AT ANY SPEED THE SEAT MOVES ALL THE WAY BACK AND THE INTERIOR LIGHTS COME ON. THIS ALSO HAPPENS WHEN YOU BRAKE OR GO OVER A BUMP. THIS IS VERY DANGEROUS TO SOMEONE OF MY SIZE BECAUSE WHEN THE SEAT GOES ALL THE WAY BACK I CAN NO LONGER TOUCH THE PEDALS. THIS IS HAPPENING VERY OFTEN AND I HAVE GOOGLED I…
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WHEN DRIVING THE VEHICLE AT ANY SPEED THE SEAT MOVES ALL THE WAY BACK AND THE INTERIOR LIGHTS COME ON. THIS ALSO HAPPENS WHEN YOU BRAKE OR GO OVER A BUMP. THIS IS VERY DANGEROUS TO SOMEONE OF MY SIZE BECAUSE WHEN THE SEAT GOES ALL THE WAY BACK I CAN NO LONGER TOUCH THE PEDALS. THIS IS HAPPENING VERY OFTEN AND I HAVE GOOGLED IT AND I CAN SEE THAT A LOT OF OTHER PEOPLE WHO OWN THIS YEAR MAKE AND MODEL ARE HAVING THE SAME PROBLEMS WITH THEIR VEHICLE. I HAVE TAKEN IT TO SEVERAL MECHANICS AND FORD DEALERS AND NOBODY SEEMS TO BE ABLE TO FIGURE OUT WHAT IS WRONG WITH IT.
NHTSA ODI #10850509
Mileage unknown · Jan 31, 2016
Structure
THE REAR HATCH HINGE ON THE GLASS BROKE WHEN OPENING. IT ALMOST HIT ME IN THE HEAD
NHTSA ODI #10823346
6,000 miles · Jan 23, 2016
Electronic Stability Control (esc)StructureWheels
- SEAT ( DRIVER'S SEAT) AUTOMATICALLY MOVES WHILE DRIVING CAUSING A SAFETY ISSUES. - EXCESS WATER LEAKAGE AROUND LEFT DOOR JAM IN WATER RUN DOWN INTO BASE OF FLOOR - WATER SEEPAGE AROUND SUN ROOF - TIRE SENSOR ( LEFT)
NHTSA ODI #10821871
121,000 miles · Sep 9, 2015
Engine
A REPAIR SHOP TOLD ME THAT MY ENGINE WAS LEAKING COOLANT THAT COULD MAKE THE ENGINE RUN HOT AND FAIL. AFTER DOING SOME ONLINE RESEARCH, I FOUND THAT THIS IS A COMMON PROBLEM WITH THESE VEHICLES AS FORD USED A CHEAP PLASTIC PART WHICH EASILY CRACKS AND ALLOWS COOLANT TO LEAK. THE LEAK ALSO AFFECTS OTHER PARTS OF THE ENGINE CAUS…
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A REPAIR SHOP TOLD ME THAT MY ENGINE WAS LEAKING COOLANT THAT COULD MAKE THE ENGINE RUN HOT AND FAIL. AFTER DOING SOME ONLINE RESEARCH, I FOUND THAT THIS IS A COMMON PROBLEM WITH THESE VEHICLES AS FORD USED A CHEAP PLASTIC PART WHICH EASILY CRACKS AND ALLOWS COOLANT TO LEAK. THE LEAK ALSO AFFECTS OTHER PARTS OF THE ENGINE CAUSE THEM TO PERFORM IMPROPERLY. FORD IS AWARE OF THIS PROBLEM BUT HAS FAILED TO ISSUE A RECALL DESPITE THEIR KNOWLEDGE AND THE RISKS TO THE CONSUMER.
NHTSA ODI #10762456
120,000 miles · May 21, 2015
Electrical System
THE SAME AS OTHER COMPLAINTS EXCEPT IT IS AN ONGOING PROBLEM. EASY EXIT FEATURE ACTIVATES ON ITS OWN, DOME LIGHT COMES ON AT SLOW OR MODERATE SPEED, SUDDEN STOPS AND TURNING. SOMETIMES IT CORRECTS ITSELF AND SOMETIMES YOU HAVE TO MANUALLY ADJUST THE SEAT. VERY ANNOYING AND UNSAFE
NHTSA ODI #10717704
91,305 miles · Mar 1, 2015
Electrical SystemPower Train
SEAT MOVED BACK FOR "EASY EXIT" ALL VEHICLE COMPONENTS SHUT OFF AND VEHICLE BRAKES LOCKED UP IN THE ROAD THEN CUT BACK ON BY ITSELF AND TRANSMISSION JERKED INTO GEAR LIKE SOMEONE REAR ENDED US! VERY SCARY AND UNSAFE WITH MY 10 MONTH OLD IN THE VEHICLE! *TR
NHTSA ODI #10691333
NHTSA investigations
1PE08060 · Tire Valve Cracking
Opened Oct 14, 2008 · Closed Apr 9, 2009
Status: closed (inferred from source dates) · Tires:valve
ON OCTOBER 14, 2008, ODI OPENED PE08-060 TO INVESTIGATE ALLEGATIONS OF CRACKED AND LEAKING SNAP-IN TIRE VALVES IN MODEL YEAR (MY) 2007 VEHICLES MANUFACTURED BY FORD MOTOR COMPANY.THE VALVES WERE SUPPLIED TO FORD BY TOPSEAL AUTO-PARTS, A SUBSIDIARY OF THE SHANGHAI BAOLONG AUTOMOTIVE CORPORATION IN CHINA.VALVES MADE BY TOPSEAL FOR AFTERMARKET SALE WERE THE SUBJECT OF TWO RECENT SAFETY RECALLS BY TECH INTERNATIONAL (08T-018) AND DILL AIR CONTROLS (08T-028), THE LATTER OF WHICH WAS INVESTIGATED BY ODI IN PE08-036 AND EA08-022.THE DEFECT CONDITIONS ADDRESSED BY THE AFTERMARKET TIRE VALVE RECALLS BOTH INVOLVED INADEQUATE RESISTANCE TO OZONE CRACKING DUE TO ISSUES WITH THE SUPPLY OF ANTI-OZONANT CHEMICALS TO TOPSEAL FOR A PERIOD FROM JULY TO MID-NOVEMBER 2006.THE AFTERMARKET VALVES WERE COMPOUNDED WITH A BLEND OF EPDM AND NATURAL RUBBER, USING A RELATIVELY LOW PERCENTAGE OF EPDM (EPDM PROVIDES INHERENT RESISTANCE TO OZONE CRACKING).HENCE, THE NEED FOR ANTI-OZONANT CHEMICALS AND THE PROBLEMS WITH CRACKING WHEN THOSE CHEMICALS WERE MISSING OR OUT OF SPECIFICATION IN SOME LOTS OF VALVES.BOTH RECALL CAMPAIGNS INVOLVED INSPECTION PROGRAMS TO IDENTIFY AND REPLACE VALVES WITH VISIBLE SURFACE CRACKING.ALTHOUGH THE TOPSEAL VALVES SUPPLIED TO FORD ALSO APPEAR TO HAVE BEEN AFFECTED BY THE ANTI-OZONANT SUPPLY ISSUES IN MID TO LATE-2006, FORD INDICATED THAT ITS VALVES WERE MADE AT A DIFFERENT TOPSEAL PRODUCTION LINE AND WERE COMPOUNDED WITH A HIGHER PERCENTAGE OF EPDM RUBBER TO MEET MORE STRINGENT SPECIFICATIONS FROM FORD.ODI'S ANALYSIS OF COMPLAINT AND WARRANTY DATA PROVIDED BY FORD SHOWED THAT PROBLEMS WITH CRACKED TIRE VALVES WERE SIGNIFICANTLY HIGHER FOR MY 2007 VEHICLES PRODUCED FROM DECEMBER 2006 THROUGH MARCH 2007.FORD RESPONDED BY IMPLEMENTING CHANGES IN ITS MATERIAL SPECIFICATIONS FOR SNAP-IN RUBBER TIRE VALVES AND ALSO INCREASING THE QUALITY AND ACCEPTANCE STANDARDS FOR VALVES IMPORTED FOR USE IN ITS VEHICLES.WHILE THE COMPLAINT AND WARRANTY CLAIM RATES ARE ELEVATED FOR SUBJECT VEHICLES PRODUCED FROM DECEMBER 2006 THROUGH MARCH 2007, THE RATES OF LEAKING VALVES ARE WELL BELOW ONE PERCENT OF PRODUCTION FOR EACH OF THE PEAK MONTHS FOR ALL OF THE AFFECTED MODELS.A SUBSTANTIAL MAJORITY OF THE SUBJECT VEHICLES ARE EQUIPPED WITH TIRE PRESSURE MONITORING SYSTEMS (TPMS) WHICH WARN THE DRIVER WHEN ANY TIRE PRESSURES DROPS BELOW 25 PERCENT OF RECOMMENDED INFLATION PRESSURE. AS OUTLINED IN A LETTER TO ODI DATED APRIL 6, 2009, FORD HAS AGREED TO SEND LETTERS TO OWNERS OF CERTAIN MY 2007 AND 2008 FORD, LINCOLN AND MERCURY VEHICLES TO PROVIDE INFORMATION ABOUT THE CRACKING CONCERN. LETTERS WILL BE SENT TO OWNERS OF VEHICLES BUILT FROM NOVEMBER 2006 THROUGH MAY 2007.OWNERS CAN OPT FOR A FREE DEALER INSPECTION.VALVES EXHIBITING SURFACE CRACKS OR AIR LEAKAGE RELATED TO OZONE ATTACK WILL BE REPLACED BY FORD UNDER ITS NORMAL WARRANTY TERMS.FORD EXPECTS TO SEND THE LETTER BY APPROXIMATELY MID-MAY 2009. BASED ON THE USE OF TPMS IN THE MAJORITY OF SUBJECT VEHICLES AND THE RELATIVELY LOW RATES OF REPAIRS ASSOCIATED WITH LEAKING VALVES AND RESULTANT TIRE DAMAGE, ODI BELIEVES THAT THE ACTIONS FORD HAS AGREED TO TAKE WILL PROVIDE EFFECTIVE AND EXPEDITIOUS RESOLUTION FOR VEHICLES THAT WERE BUILT DURING THE PERIOD WHEN VALVES WITH INADEQUATE RESISTANCE TO OZONE CRACKING WERE MOST LIKELY TO HAVE BEEN USED IN VEHICLE PRODUCTION.FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO
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