FaultScore

Mercury Mountaineer electrical problems

190 of the 2,646 complaints filed about the Mercury Mountaineer are about the electrical system — 7% of everything owners reported. The worst model year for it is 2008.

190

Complaints

7%

Share of all complaints

7

Crashes

26

Fires

Electrical System complaints by model year

Median failure at 62,501 miles

1998 Mountaineer 24 12.6%

Median failure at 94,280 miles

Median failure at 58,000 miles

2000 Mountaineer 19 10.0%

Median failure at 118,000 miles

2002 Mountaineer 19 10.0%

Median failure at 60,000 miles

Median failure at 87,000 miles

Median failure at 82,700 miles

Median failure at 98,581 miles

Median failure at 75,000 miles

Median failure at 91,305 miles

2008 Mountaineer 40 21.1%

Median failure at 65,000 miles

Median failure at 71,000 miles

Median failure at 109,000 miles

What owners said

2007 Mercury Mountaineer Morris, MN

ELECTRICAL SYSTEM

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

NHTSA complaint #11502548 — an unverified report by a vehicle owner.

2002 Mercury Mountaineer Hempstead, NY

ELECTRICAL SYSTEM

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 mechanical devices like (windows, sunroofs, seats, etc.) Generate some kind of electrical problem that may present a safety hazard. Power train :transmissions, transfer cases fluid hard to check ,electronic control units and shift lever inacurated, drive axles, hubs, shafts, differentials, CV joints star vibration that may present a safety hazard.

NHTSA complaint #11469915 — an unverified report by a vehicle owner.

2010 Mercury Mountaineer at 109,000 miles Elmont, NY

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 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 complaint #11468066 — an unverified report by a vehicle owner.

2008 Mercury Mountaineer at 120,000 miles Manitowoc, WI

ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

TL* THE CONTACT OWNS A 2008 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THE INSTRUMENT PANEL LIGHTING SYSTEM WAS INOPERABLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THE VEHICLE HOWEVER, WAS UNABLE TO DETERMINE THE CAUSE OF THE FAILURE. THE INSTRUMENT PANEL LIGHTS WERE REPLACED HOWEVER, THE FAILURE RECURRED. THE VEHICLE THEN WAS TAKEN TO MARITIME FORD (1305 FRANKLIN ST, MANITOWOC, WI 54220) WHERE THE VEHICLE WAS DIAGNOSED AND IT WAS DETERMINED THAT THE DIMMER SWITCH NEEDED TO BE PLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 120,000. *DT

NHTSA complaint #11326133 — an unverified report by a vehicle owner.

2008 Mercury Mountaineer at 140,074 miles Elizabeth, NJ

ELECTRICAL SYSTEM

CAR WHEN IDLE SHUTS OFF IN MIDDLE OF TRAFFIC LOCKING BREAK AN STEERING WHEEL CAN CAUSE ACCIDENT HAPPENED TO ME IN MIDDLE OF TRAFFIC THANK GOD I WAS CLOSE TO EMERGENCY EXIT CAR SHUTOFF NOT ALLOWING TO BRAKE HAD TO PRESS EMERGENCY BRAKE.

NHTSA complaint #11323974 — an unverified report by a vehicle owner.

2008 Mercury Mountaineer at 29,000 miles Perry, FL

ELECTRICAL SYSTEM

AT 28000 MILES THE TRANSMISSION STARTED SHIFTING ERRATIC, THE DEALER REPROGRAMMED THE ECM AND COVERED UP THE PROBLEM UNTIL THE WARRANT ENDED AND THE BATTERY FAILED AT WHICH TIME THE CAR REVERTED BACK TO DEFAULT AND CONTINUED TO BUCK AND JERK UNTIL THE CAR REACHED HIGHWAY SPEED. THIS CONTINUED UNTIL THE TRANSMISSION FINALLY FAILED DURING OPERATION ON THE HIGHWAY ON 3/5/20. THE ABS MODULE JUST FAILED DURING LOW SPEED OPERATION FOR NO APPARENT REASON. ALSO THE CAR INDICATED THAT THERE IS AN ELECTRICAL PROBLEM EVEN THOUGH ALL ELECTRICAL COMPONENTS ARE IN GOOD OPERATIONAL CONDITION. THIS ERROR COMES AND GOES CONSTANTLY AT ANY GIVEN TIME.

NHTSA complaint #11316784 — an unverified report by a vehicle owner.

2008 Mercury Mountaineer at 198,000 miles Chesapeake, VA

ELECTRICAL SYSTEM

DRIVER SEAT ELECTRICAL ADJUSTMENT WILL MOVE ITSELF BACKWARDS WHILE CAR IS MOVING. THERE IS NO PATTERN TO THIS PROBLEM, IT IS RANDOM.

NHTSA complaint #11282163 — an unverified report by a vehicle owner.

2007 Mercury Mountaineer at 5 miles Chicago, IL

ELECTRICAL SYSTEM

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

NHTSA complaint #11253752 — an unverified report by a vehicle owner.

2007 Mercury Mountaineer at 140,859 miles Kearns, UT

ELECTRICAL SYSTEM

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.

NHTSA complaint #11219659 — an unverified report by a vehicle owner.

2008 Mercury Mountaineer at 135,000 miles PSL, FL

ELECTRICAL SYSTEM

WHILE DRIVING DRIVER SEAT GOES BACKWARD AND INTERIOR LIGHTS GOES ON WITH OUT USING OR PUSHING NO INSTRUMENTS

NHTSA complaint #11210214 — an unverified report by a vehicle owner.

2004 Mercury Mountaineer Benton, AR

ELECTRICAL SYSTEM

MY WINDOWS WERE ROLLING DOWN WHEN I FIRST THEN ALL OF A SUDDEN STOPPED ROLLING DOWN

NHTSA complaint #11205264 — an unverified report by a vehicle owner.

2008 Mercury Mountaineer at 13,000 miles Hermantown, MN

ELECTRICAL SYSTEM

WHILE DRIVING THE VEHICLE THE INTERIOR LIGHT TURNS ON AND THE SEAT MOVES BACK INTO THE PARK POSITION. THIS IS A SAFETY ISSUE AS IT IS DIFFICULT TO REACH THE PEDAL/BRAKE AND IT HAPPENS WITHOUT NOTICE. THERE IS NO RHYME OR REASON TO THIS PROBLEM. I HAVE SEEN MULTIPLE POSTS REGARDING THIS ISSUE AND DON'T SEE HOW IT CANNOT BE A RECALL FOR SAFETY REASONS

NHTSA complaint #11141363 — an unverified report by a vehicle owner.

2006 Mercury Mountaineer at 100,000 miles Amite, LA Crash

ELECTRICAL SYSTEM

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 complaint #11098075 — an unverified report by a vehicle owner.

2007 Mercury Mountaineer at 171,237 miles Chauncey, OH

ELECTRICAL SYSTEM

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

NHTSA complaint #11090988 — an unverified report by a vehicle owner.

2007 Mercury Mountaineer at 150,000 miles East Bridgewater, MA

ELECTRICAL SYSTEM

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.

NHTSA complaint #11083828 — an unverified report by a vehicle owner.

2004 Mercury Mountaineer at 135,000 miles Harlan, IA

ELECTRICAL SYSTEM

1. PAINT COMING OFF OF ROOF AND DRIVER'S DOOR. 2. REAR PASSENGER SIDE AND DRIVER SIDE POWER WINDOWS NOT WORKING. 3. CRACKS IN PLASTIC AREA OF REAR LIFT GATE AROUND WIPER ARM. 4. ALMOST LOST CONTROL AND POTENTIAL ACCIDENT ON INTERSTATE WHEN RIGHT REAR WHEEL CAME LOOSE.

NHTSA complaint #11053938 — an unverified report by a vehicle owner.

2008 Mercury Mountaineer at 90,000 miles Appleton, WI

ELECTRICAL SYSTEM

AFTER APPROXIMATELY 90,000 MILES THE DOME LIGHTS TURNED ON AND AUTOMATIC SEATS MOVE BACK WHILE DRIVING. THIS ISSUE PERSISTS AND OFTEN OCCURS SEVERAL TIMES. THERE ARE SEVERAL COMPLAINTS OF THIS ISSUE FOUND ONLINE. IT IS NOT DUE TO A HEAVY KEY CHAIN AS I ONLY HAVE THE FOB AND KEY ATTACKED. THIS IS A SAFETY ISSUE AS THE SEATS PULL THE DRIVER AWAY FROM THE PEDALS AND STEERING WHEEL. INVESTIGATE! RECALL!

NHTSA complaint #11052947 — an unverified report by a vehicle owner.

2007 Mercury Mountaineer at 102,000 miles West Allis, WI

ELECTRICAL SYSTEM

UPON DRIVING ON THE FREEWAY THE INSIDE DOME LIGHTS CAME ON AND MY SEAT STARTED ADJUSTING ITSELF BACK AND FORTH WHILE DRIVING.

NHTSA complaint #11039428 — an unverified report by a vehicle owner.

2008 Mercury Mountaineer at 112,580 miles Stafford, NY

ELECTRICAL SYSTEM

WHILE DRIVING DOWN THE ROAD, THE SEAT WILL SUDDENLY MOVE BACKWARDS TO THE "OPEN DOOR" POSITION, AS THOUGH THE KEY HAD BEEN PULLED OUT OF THE IGNITION. THIS CREATES A VERY DANGEROUS SITUATION, ESPECIALLY FOR PEOPLE WITH SHORT LEGS, AS ONE CAN NO LONGER REACH THE GAS PEDAL OR BRAKE. SLIGHTLY "WIGGLING" THE KEY OR IGNITION SWITCH WILL USUALLY GET THE SEAT TO MOVE BACK TO THE PRESET DRIVING POSITION. WHEN THIS HAPPENS, THE INTERIOR LIGHTS ALSO GO ON, AND TURN OFF WHEN THE SEAT MOVES BACK INTO POSITION. THIS SEEMS TO HAPPEN AT ALL DIFFERENT SPEEDS, AND IT SEEMS MOST EVENTS HAPPEN AFTER THE CAR HITS A BUMP, BUT NOT ALWAYS. THERE HAVE BEEN TIMES WHEN IT JUST SEEMS TO HAPPEN WITHOUT ANYTHING TO SET IT OFF. IT ALSO CAN HAPPEN WHEN THE VEHICLE IS FIRST STARTED UP, OR JUST AS YOU START TO SHUT THE VEHICLE OFF. IT IS ABSOLUTELY RIDICULOUS THAT REPAIR OF THIS CONDITION IS NOT A RECALL ITEM. THE DATE SHOWN FOR WHEN IT HAPPENED IS THE LATEST DATE - I HAVE NOT DRIVEN THE VEHICLE SINCE THEN - BUT IT HAS BEEN OCCURRING FOR AT LEAST THE LAST 10 MONTHS.

NHTSA complaint #11035952 — an unverified report by a vehicle owner.

2002 Mercury Mountaineer at 25,000 miles Saint Paul, MN

ELECTRICAL SYSTEM

MY POWER WILL STAY ON FOR LONG PERIODS OF TIME ALSO I'M HAVING AN ACCELERATION PROBLEM WHEN I DRIVE I HAVE TO WAIT FOR IT TO GO TO ABOUT 25 MI TILL 26 FOR IT TO PICK UP ANY SPEED IT TAKES A VERY LONG TIME FOR IT TO PICK UP ANY SPEED IN THE 1ST PLACE.

NHTSA complaint #11002611 — an unverified report by a vehicle owner.

Other Mercury Mountaineer problems