Owner-reported complaints naming the electrical system, filed with NHTSA
Data refreshed
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories. Every record below is an owner-reported complaint about the 2007 Mercury Mountaineer submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 16 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
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
1ST WHILE DRIVING THE DRIVER'S SEAT CONTINUES TO MOVE BACK N FORTH FROM WAY BACK TO UP CLOSE DRIVING THIS VEHICLE WHILE THIS SEAT MOVES IS VERY DANGEROUS EVERYTIME I LOCK THE DOORS THEY UNLOCK N ONLY LOCK WHEN OFF
I WAS DRIVING HOME ON A BUSY CITY STREET WHEN I STOP AT A STOP LIGHT TO TURN RIGHT. WHEN I WENT TO ACCELERATE MY MERCURY MOUNTAINEER WHEN IN TO LIMP MODE. AS I INSPECTED THE SUV FOR PROBLEMS I NOTICED THE MY ENGINE/TRANSMISSION WIRE HARNESS WAS BRITTLE AND EXPOSING BARE WIRE AND THAT THE WIRES WERE TOUCHING EACH OTHERS CAUSE THEM TO SHORT OFF THE VEHICLE COMPUTER SYSTEM AND FRYING ELECTRICAL COMPONENTS. IT ALSO CAUSED THE TRANSMISSION TO MALFUNCTION AND SHIFT WRONG WHICH IN TURN CAUSING THE TORQUE CONVERTER TO FAIL AND DESTROY THE TRANSMISSION.
PASSENGER SEATBELT LOCKS WILL NOT UNLOCK UNLESS YOU UNBUCKEL THE BELT IT JUST KEEPS GETTING TIGHTER HAVE A PROBLEM WHERE THE YOU PUSH DOWN ON GAS IT WON'T DO ANYTHING FOR A MOMENT THEN JOLT FORWARD AN THE MAIN PROBLEM IT WITH THE ELECTRIC IF YOU BARLEY TOUCH THE IGNITION SWITCH OR CONTROLS FOR THE SEAT THE SEAT MOVES THE IGNITION ALSO NOT ONLY MOVES THE SEAT BUT A COUPLE TIMES IT HAS SHUT THE CAR OFF AND ONCE LOCKED US IN THE CAR HAD TO PUT THE KEYS IN AND START TO GET IT TO UNLOCK AND ONCE LOCKED US OUT WITH KEYS STILL IN IGNITION SWITCH
WHILE DRIVING MY SEAT WILL RANDOMLY MOVE BACK AND FORTH AS IF I TOOK THE KEYS OUT. THOUGHT SOMETHING WAS WRONG WITH MY TRANSMISSION BUT AFTER HAVING THE GARAGE PUT TRANSMISSION FLUID IN IT STILL FEELS LIKE THE TRANSMISSION IS MESSED UP EVEN THOUGH THE GARAGE SAYS THE TRANSMISSION IS FINE.
UPON DRIVING ON THE FREEWAY THE INSIDE DOME LIGHTS CAME ON AND MY SEAT STARTED ADJUSTING ITSELF BACK AND FORTH WHILE DRIVING.
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
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.
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
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
EXACT SAME AS NHTSA ID # 10654146. THE "EASY EXIT" FEATURE ACTIVATED AT 65 MPH IN FREEWAY TRAFFIC. I AM 6' TALL AND WAS ABLE TO SLIDE SEAT FORWARD, BUT MY WIFE IS 5' TALL AND MAY HAVE HAD ISSUES REACHING THE PEDALS... THIS HAS SINCE HAPPENED ON 3 OTHER OCCASIONS ( 2 AT FREEWAY SPEED, AND ONCE PULLING INTO OUR DRIVEWAY). I WILL CONTACT DEALER, BUT WANTED SEARCH RECALLS FIRST. *TR
DRIVER'S SEAT MOVED BACK, DOME LIGHTS ILLUMINATED (VEHICLES "EASY EXIT" FEATURE) WHILE DRIVING AT HIGHWAY SPEEDS. LUCKILY I AM TALL ENOUGH TO REACH THE PEDALS AND WHEEL WHILE THE SEAT WAS MOVED BACK, BUT MY WIFE IS ONLY 5' 4" AND WOULD HAVE A HARD TIME REACHING. THIS IS A SERIOUS ISSUE THAT HAS BEEN HAPPENING TO MANY OTHER MOUNTAINEERS AS EVIDENCED BY THE MANY REPORTS ON THE INTERNET. THE CAUSE IS ANY SLIGHT BUMPING OF THE IGNITION SWITCH OR THE STEERING COLUMN/WHEEL. *TR
TL* THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. THE CONTACT STATED WHILE DRIVING VARIOUS SPEEDS THE AUTOMATIC DRIVER'S SEAT WOULD MOVE INDEPENDENTLY AND THE INTERIOR LIGHTS ILLUMINATED INDEPENDENTLY. THIS FAILURE CONTINUED TO OCCUR FOR A MONTH. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 112,000.
APPARENTLY THERE HAVE BEEN A LOT OF ISSUES WITH THE THERMOSTAT HOUSING LEAKING FLUID INTO THE ELECTRICAL SYSTEM CAUSING IT TO SHORT OUT. I WAS DRIVING, WENT TO TAKE OFF IN RUSH HOUR TRAFFIC AND THEY VEHICLE WOULDN'T GO BECAUSE THE LEAK AND RUINED A PART OF THE ELECTRICAL SYSTEM AND THE GEARS WOULD SHIFT. IT WAS ALMOST LIKE THE TRANSMISSION HAD GONE OUT. I HAVE READ SEVERAL ACCOUNTS WHERE THIS HAS HAPPENED TO TONS OF <09 MOUNTAINEERS AND EXPLORERS. TSB 09-22-15 CAME OUT ABOUT THIS ISSUE. I WAS DRIVING WITH MY INFANT DAUGHTER AND WE COULD HAVE BEEN INJURED VERY BADLY. SOMETHING NEEDS TO BE DONE ABOUT THIS. IT HAS BEEN IDENTIFIED AND APPARENLTY AFFECTS PEOPLE'S CARS AND THEIR ABILITY TO ACCELERATE. VERY DANGEROUS. *TR
TL* THE CONTACT OWNS A 2007 MERCURY MOUNTAINEER. WHILE DRIVING APPROXIMATELY 40 MPH, THE FRONT DRIVER'S SIDE SEAT MOVED BACKWARD AND FORWARD INDEPENDENTLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE TECHNICIAN WAS ABLE TO DUPLICATE THE FAILURE AND RECOMMENDED REPLACING THE IGNITION. THE TECHNICIAN ADVISED THAT IF THE FAILURE CONTINUED, THEN THE SEATING HARNESS WOULD HAVE TO BE REPLACED. THE CONTACT HAD THE TECHNICIAN DISCONNECT THE SEAT. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 52,000.
WHILE DRIVING AT ANY SPEED THE SEAT WILL GO BACK TO ITS PARKED POSITION AND THE INTERIOR LIGHT COMES ON AS IF THE CAR WAS SHUT OFF. YOU TOUCH THE KEY IGNITION AND THE SEAT GOES BACK TO DRIVING POSITION AND THE LIGHT GOES OUT. *KB
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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