Owner-reported complaints naming the transmission system, filed with NHTSA
Data refreshed
Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules. Every record below is an owner-reported complaint about the 2006 Mercury Mountaineer submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 25 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
TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THE VEHICLE WOULD LUNGE BACKWARDS WHEN DRIVING IN REVERSE. THE VEHICLE WAS TAKEN TO THE DEALER BUT THE DEALER WAS UNABLE TO DIAGNOSE THE CAUSE OF FAILURE. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 52,000 AND THE CURRENT MILEAGE WAS 55,000.
TL*THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT WHEN THE GEAR WAS SHIFTED FROM DRIVE TO PARK THE VEHICLE DID NOT MOVE. SHE TOOK THE VEHICLE TO THE DEALER WHO STATED THAT THE SHIFT SOLENOID NEEDED TO BE REPLACED AND THE TRANSMISSION FLUSHED. THE DEALER PERFORMED THE REPAIRS AND THE FOLLOWING DAY THE VEHICLE BEGAN TO EXPERIENCE THE SAME FAILURE. THE VEHICLE ALSO MADE A LOUD THUMPING NOISE WHILE SHIFTING INTO REVERSE. THE CONTACT TOOK THE VEHICLE BACK TO THE DEALER AND WAS WAITING FOR THEM TO COMPLETE THE DIAGNOSTIC TEST. THE WAS CONCERNED SINCE THE FAILURE WAS A MAJOR SAFETY ISSUE THAT NEEDED TO BE ADDRESSED. THE FAILURE MILEAGE WAS 62,000.
MY CAR IS 2006 MERCURY MOUNTAINEER IN 2007 ALREADY THE SHIFT HAD TO BE REPLACED AS IT CONTINUALLY GOT STUCK. ONE DEALER TOLD ME THE SHIFT NEEDED TO CHANGED YET AGAIN AND NOW WHEN THE CAR IS TAKEN OUT OF PARK INTO ANY GEAR IT WONT MOVE IT TAKES ABOUT 25 MINS TO ACTUALLY PUT INTO GEAR. THE DEALER SAID IT WAS A SHIFT SOLENOID I HAD IT REPLACED A TRANSMISSION FLUSH AND REPROGRAM AND STILL THE SAME PROBLEM THE CAR ONLY HAS 62,000 MILES. *TR
2006 MERCURY MOUNTAINEER V8 AWD--WHEN SHIFTING FROM PARK TO DRIVE OR REVERSE IT "CLUNKS" HARD INTO GEAR. THE WRENCH SYMBOL AND THE ENGINE SYMBOL LIGHT UP. THE VEHICLE ALSO DRIVES HARD AS IF IT ISN'T CHANGING GEARS. THE DEALERSHIP WILL ONLY SAY THAT THE FORD TSB RECOMMENDS REPLACING THE TRANSMISSION FLUID AND FILTER, THEN RESEALING WITH FOAM SEAL FIRST BUT REFUSES TO GIVE ME AN ACTUAL DIAGNOSIS OF WHAT IS GOING ON WITH THE CAR. THEY CAN NOT TELL ME THE REAL PROBLEM AND INSIST THAT WE WILL HAVE TO WORK THROUGH THE VARIOUS STEPS ON THE FORD TSBS WHICH MAY OR MAY NOT WORK (BY THEIR OWN ADMISSION) AND THE COST OF FINAL REPAIRS IS COMPLETELY OPEN ENDED. WHEN I QUESTIONED WHAT WE WOULD TRY NEXT AFTER THE TRANSMISSION FLUID/FILTER REPLACEMENT (BECAUSE I WAS SKEPTICAL ABOUT THIS CAUSING THE ISSUE ON A VEHICLE WITH ONLY 43,000 MILES) THEY HAD NO ANSWERS AT ALL. WE HAVE OWNED THIS VEHICLE LESS THAN A YEAR. AN INTERNET SEARCH REVEALS THAT THIS IS A MAJOR ONGOING PROBLEM WITH THIS MODEL BUT FORD REFUSES TO OWN UP TO IT. THERE NEEDS TO BE A RECALL. *TR
2006 MERCURY MOUNTAINEER SHIFTS HARD WHEN GOING INTO REVERSE, AND IS ALSO STARTING TO SHIFT HARD FROM 2ND TO 3RD GEAR. HAVE HEARD FROM MANY THERE PEOPLE WITH 2006 FORD EXPLORERS THAT THERE IS A MANUFACTURER DEFECT IN THE TRANSMISSION. HAVE HAD CHIP REPROGRAMMED AT DEALERSHIP (WAS CHARGED) AND ALSO HAD TRANSMISSION FLUSHED AND IT IS ACTUALLY WORSE NOW. MY MOUNTAINEER HAS 58,000 MILES ON THIS AND HAS BEEN DOING THIS FOR THE PAST 2,000 MILES. FORD SHOULD FIX THIS ISSUE. *TR
MY TRUCK HAS 115,000 MILES ON IT, TRANSMISSION IS NOW GONE. WHEN I PUT IT IN REVERSE IT WOULD JERK BACK LIKE THE IT WAS BEING HIT, ALL OF SUDDEN IT STARTED DRAGGING WHILE DRIVING, AND HAVING PROBLEMS SHIFTING INTO GEAR, AND NOW ITS TOTALLY GONE...ONLY HAD THE VEHICLE TWO YEARS. *TR
V8 MOUNTAINEER JOLTS WHEN YOU COME TO STOP, FEELS LIKE IT HAS BEEN REAR ENDED, NO ACCIDENTS AT THIS POINT, BUT THERE HAS BEEN A FEW CLOSE CALLS. *TR
2006 MERCURY MOUNTAINEER TRANSMISSION PROBLEMS. HESITATION, FUNNY SHIFTING. COULD GET SOMEONE IN TROUBLE BY THE RANDOM SHIFTING PROBLEM. FORD DEALER I WENT TO SAID THEY HAD NEVER HEARD OF THE PROBLEM. WHEN YOU GOOGLE THIS IT IS A PROBLEM THANKS *TR
MY CAR HAS HAD A CONTINUING PROBLEM WITH THE TRANSMISSION. IT SHIFTS ROUGHLY AND LURCHES WHEN BEGINNING TO MOVE. FOR EXAMPLE, WHEN STOPPED AT A STOPLIGHT, AND THEN BEGINNING TO DRIVE, IT WILL LURCH, JOLTING THE PASSENGERS. OUR DRIVEWAY IS SLOPED TOWARD THE STREET. WHEN I PARK THE CAR, I ALWAYS SET THE EMERGENCY BRAKE AS WELL. THE CAR ALWAYS ROLLS A FEW INCHES BEFORE THE BRAKES LOCK, EVEN THOUGH IT IS STOPPED AND IN PARK. ON SEP. 4, 2009, MY MOTHER BORROWED MY CAR TO GO TO LUNCH. SHE COULDN'T FIND THE EMERGENCY BRAKE RELEASE. SHE PUT THE CAR IN PARK AND GOT OUT TO LOCATE THE EMERGENCY BRAKE. SHE FOUND IT AND RELEASED IT. THE CAR POPPED INTO REVERSE AND ROLLED BACKWARDS TO THE STREET. THE DOOR KNOCKED MY MOTHER DOWN AND SHE HIT HER HEAD HARD ENOUGH TO SUSTAIN A CLOSED HEAD INJURY WITH MINOR BLEEDING IN HER BRAIN. THE CAR ROLLED ACROSS THE STREET, OVER THE CURB AND HIT A NEIGHBOR'S POPLAR TREE. THE ENTIRE TAILGATE WAS DESTROYED, THERE WAS SOME INTERIOR DAMAGE AND THE FRAME WAS WARPED. THE TAILGATE HAD TO BE REPLACED, THE BUMPER AND TRAILER HITCH HAD TO BE REPAIRED AND THE FRAME STRAIGHTENED. MY MOTHER WAS IN HOSPITAL OVERNIGHT AND HAD TO HAVE TWO CT-SCANS. SHE STILL HAS HEADACHES AND TRANSIENT DIZZINESS. WE ARE JUST FORTUNATE THE CAR DIDN'T RUN HER OVER, HIT A PEDESTRIAN (THERE ARE A LOT OF WALKERS IN OUR NEIGHBORHOOD), HIT A CAR OR A NEIGHBOR'S HOUSE. *TR
2006 MERCURY MOUNTAINEER SLIPPED OUT OF PARKED IN DRIVEWAY AND HIT MOTHER INLAWS 2005 GMC ENVOY. THIS IS ONE OF A HAND FULL OF TIMES IT HAS SLIPPED OFF PARK. TOOK IT TO THE DEALERSHIP 3 TIMES AND NOTHING, NOW I AM FIGHTING WITH GRAND LEDGE FORD, GRAND LEDGE, MI TO GET IT FIX OR REPLACE THE TRANSMISSION BEFORE SOMEONE GET SERIOUSLY HURT OR EVEN DIES. THIS IS A VERY SCARY SITUATION AND NEEDS TO BE RECALLED AS SOON AS POSSIBLE. *TR
HAD TO REPLACE TWO RADIATORS WITHIN 30,000 MILES OF REPLACEMENT. EXACTLY HOW MANY COMPLAINTS, OR SHOULD I SAY DEATHS (?) ARE NEEDED TO TRIGGER AN INVESTIGATION OF A COMPANY GLADLY RECEIVING ASSISTANCE WHILE OUTPUTTING INFERIOR VEHICLES. NO VEHICLE MANUFACTURED IN 2006 SHOULD NEED THREE NEW RADIATORS WITHIN 3 YEAR AND 70K MILES. STOP LETTING FORD OFF THE HOOK AND GET SERIOUS ABOUT GETTING TO THE BOTTOM OF THEIR ISSUES. JUST DO A SEARCH ON 2006 MERCURY MOUNTAINEER AND YOU WILL CLEARLY SEE THERE ARE ISSUES WITH THE COOLING AS WELL AS THE AUTOMATIC TRANSMISSION. IN FACT, OUR MODEL HAS THE SAME ISSUE THAT OTHERS HAVE REPORTED WITH THE AUTOMATIC TRANSMISSION AND IT WILL SOMETIMES NO MOVES GEARS, SLIP A GEAR, AND TUG LIKE IT IS PULLING OUT OF MUD AT A STOP LIGHT. OPEN A FULL BLOWN INVESTIGATION INTO THEIR LACK OF QUALITY CONTROL AND THE LACK OF PROFESSIONALISM ON THE PART OF THE DEALERSHIPS FOR NOT REPORTING THIS TO CORPORATE. *TR
I HAVE JUST PURCHASED A USED 2006 MERCURY MOUNTAINEER AWD V8. WHEN THE VEHICLE IS COMING TO A STOP, THE TRANSMISSION LUNGES FORWARD AS IT IS DOWNSHIFTING. IT FEELS JUST LIKE ANOTHER VEHICLE HAS HIT MY VEHICLE FROM BEHIND. THIS IS A DANGEROUS SITUATION SINCE AS THE VEHICLE LUNGES FORWARD, IT COULD HIT A PEDESTRIAN IN A CROSS WALK OR HIT ANOTHER VEHICLE IN FRONT OF ME. *TR
WHEN I STOP MY TRANNY KICKS AND IT FEELS LIKE I GOT HIT IN THE REAR. I TOOK IT TOO FM DEALER AND THEY ADJUSTED THE COMP, BUT DIDN'T FIX THE PROB. IT GOT WORSE. *TR
MY 2006 MOUNTAINEER HAS TRANSMISSION PROBLEMS. WHILE COMING TO A STOP AT A LIGHT THERE IS A LOUD "POP" OR THUD LIKE NOISE AS IF THE TRANSMISSION IS POPPING INTO PLACE. ALSO TRANSMISSION SLIPS WHEN GOING FORWARD. IT JERKS ESPECIALLY AT LOW SPEEDS SUCH AS PULLING OUT OF A PARKING SPACE. THERE IS DEFINITELY SOMETHING WRONG WITH THE TRANSMISSION. POOR DESIGN OR MANUFACTURING BUT DEFINITELY SOMETHING IS WRONG. YOU FEEL LIKE YOU HAVE BEEN STRUCK FROM BEHIND WHEN THE POPPING/THUD NOISE OCCURS AT A LIGHT. VERY UNSETTLING. ALSO CAR LURCHES FORWARD WHEN PULLING OFF FROM A STANDING POSITION SUCH AS AT A LIGHT AND YOU FEEL LIKE YOUR GOING TO HIT THE CAR IN FRONT OF YOU. *TR
I OWN A 2006 MERCURY MOUNTAINEER (V8 AWD). EVERYTIME I STOP THE TRANSMISSION JOLTS FORWARD AS IF WE HAVE BEEN INVOLVED IN A REAR-END COLLISION. I HAVE CALLED FORD MOTOR COMPANY TO COMPLAIN AND THEY HAVE AGREED THAT THERE IS A PROBLEM BUT NOT TO THE DEGREE THAT THEY WOULD INITIATE A RECALL. THIS IS VERY DANGEROUS AND SOMEONE IS EVENTUALLY GOING TO GET HURT IF NOT KILLED. *TR
2006 MERCURY MOUNTAINEER HAS TRANSMISSION PROBLEMS. CONSUMER STATES THAT HIS VEHICLE HAS BEEN SERVICE SEVERAL TIMES BUT THE PROBLEM IS NOT FIXED. *NJ THE CONSUMER STATED THE TRANSMISSION WOULD SLIP, MOST NOTICEABLY IN FRIGID TEMPERATURES. *JB
2006 MERCURY MOUNTAINEER. THE TRANSMISSION HAS PROBLEMS. IT PUNCHES IN AND OUT OF GEARS, MAKES A LOUD GRINDING NOISE AND PULLS THE CAR TO THE LEFT. IT HAS PROBLEMS GOING INTO REVERSE. IT DOES NOT HAPPEN ALL THE TIME BUT I WOULD SAY ABOUT 3 TO 4 TIMES A WEEK. IT IS NOT SAFE TO DRIVE WHEN THE CAR DOES THIS. I AM DRIVING MY 1 YEAR OLD IN THIS CAR AND I HAVE TO CONCENTRATE SO HARD TO MAKE THE CAR GO STRAIGHT AND TO PUT MINIMAL PRESSURE ON THE GAS PEDAL SO IT DOESN'T JERK US TOO HARD. IT IS AT THE DEALERSHIP NOW AND FROM WHAT I HAVE READ ONLINE THEY WILL TRY TO PUT A BANDAID ON THE PROBLEM UNTIL THE WARRANTY RUNS OUT! THIS CAR ONLY HAS 26,000 MILES ON IT! I JUST BOUGHT IT USED ABOUT 8 MONTHS AGO. *TR
BOUGHT THIS MERCURY MOUNTAINEER MARCH 2007. WORSE VEHICLE EVER OWNED. MOST OF THE TIME WHEN STOPPING I GET THAT THUD NOISE. I FEEL LIKE I GOT HIT FROM THE BEHIND. WHEN IN TRAFFIC I WORRY ALOT ALSO. I BOUGHT THIS TRUCK IN 7 TIMES AND PROBLEM STILL OCCURS. DEALERSHIP WILL NOT FIX IT UNTIL I SHOW THEM THE PROBLEM. I TOLD THEM IT DOES NOT HAPPEN EVERYDAY. WITH MY LUCK IT DID NOT HAPPEN WHEN I WAS THERE. *TR
TRANSMISSION KICKS FROM 2ND GEAR TO 1ST GEAR WHEN COMING TO A STOP. IT IS INTERMITTENT AND JARRING TO THE VEHICLE AND PASSENGERS. THE VEHICLE WAS TAKEN IN FOR REPAIR TO AN AUTHORIZED DEALERSHIP. THE TRANSMISSION FLUID WAS CHANGED AND THE COMPUTER WAS REFLASHED, HOWEVER THE PROBLEM WITH THE SHIFT SHOCK CONTINUES.*CN
TL*THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STARTED THE VEHICLE AND IT IMMEDIATELY STALLED. THE VEHICLE WAS TOWED TO A LOCAL DEALER AND THEY STATED THAT THE ENTIRE COMPUTER SYSTEM FAILED AND WAS REPLACED. TWO MONTHS LATER, THE ENGINE LIGHT ILLUMINATED. SHE TOOK THE VEHICLE TO THE DEALER AND THEY STATED THAT THERE WAS EMISSION FAILURE. THE CONTACT ALSO BEGAN EXPERIENCING FAILURES WITH THE FRONT PASSENGER WINDOW AND THE FRAME WAS REPLACED. THE ENGINE LIGHT STILL CONTINUED TO ILLUMINATE AND THE DEALER STATED THAT IT WAS DUE TO THE CATALYTIC CONVERTER, IN ADDITION TO THE TRANSMISSION. THE DEALER DID NOT KNOW HOW TO REPAIR THE FAILURES. THE CURRENT MILEAGE WAS 1,500 AND FAILURE MILEAGE WAS 411.
I BOUGHT MY 2006 MERCURY MOUNTAINEER APRIL 26, 2006. I STARTED HAVING THE TRANSMISSION PROBLEMS DECEMBER 2006. WHEN YOU PUT ON BREAKS TO STOP YOU HEAR A THUD AND THE VEHICLE WILL ACTUAL THROW YOU FORWARD IN THE SEAT. IT FEELS LIKE YOU MIGHT NOT ACTUALLY STOP WHEN IT FIRST HAPPENS. THIS HAPPENS DAILY. THE FIST TIME I TOOK THE VEHICLE IN AND LEFT IT WITH THEM, THEY DROVE IT AND SAID THEY DID NOT FIND ANYTHING. JANUARY 2007 I TOOK THE CAR BACK TO THEM AND THEY DID DIVE IT AND HAVE THE SAME PROBLEM. THE CALLED FORD AND FORD TOLD THEM THERE WAS A RECALL ON IT AND THEY NEEDED TO PUT IT ON THE COMPUTER AND DO A RECALIBRATING. THEY DID THIS AND THE PROBLEM WAS GONE FOR A WEEK AND IT RETURNED. I TOOK IT BACK TO THEM AND THEY REPLACED A PART IN THE TRANSMISSION, THIS LASTED A WEEK AND IT STARTED THE SAME THING AGAIN. I AM NOW STILL FUSSING WITH THEM ABOUT GETTING IF FIXED. THEY KEPT IT 5 DAYS LAST WEEK AND DID NOTHING TO IT. I HAD AN APPOINTMENT WITH A FORD REP. LAST WEEK AND THIS PAST WEEK AND HE DID NOT SHOW FOR EITHER APPOINTMENT. *TR
I RECEIVED MY VEHICLE 1/18/2006 A MERCURY MOUNTAINEER. ON MY SURVEY THAT I RETURNED TO FORD IN MARCH OF 2006, I TOLD THEM THAT I HATED THEIR " SLIP-O-MATIC " TRANSMISSION. I DO NOT HAVE ALL THE VISITS DOCUMENTED BUT THE SECOND PROBLEM WE HAD WAS THE VEHICLE WOULD COME TO A STOP AT A STOP LIGHT AND THEN A FEW SECONDS LATER YOU WOULD FEEL A "THUD" LIKE YOU WERE HIT FROM BEHIND BY ANOTHER VEHICLE. WE HAD THE TRANSMISSION REPROGRAMMED AND THE VALVE REPLACED AND THAT PROBLEM SEEMED TO BE RESOLVED. BUT THE SLIPPING THROUGH THE GEARS CONTINUED TO BE A PERSISTENT PROBLEM. IT IS ALMOST AS IF WHEN YOU PULL OUT INTO THE HIGHWAY THAT YOU ARE IN SUSPENDED ANIMATION FOR 1 TO 1.5 SECONDS. THIS IS PARTICULARLY UNSETTLING WHEN CROSSING SEVERAL LANES OF TRAFFIC FROM A STOPPED POSITION... LIKE PULLING OUT OF A GAS STATION (WITH THE TRAFFIC) WHILE A SEMI IS COMING UP BEHIND YOU REAL FAST OR TURNING ACROSS TRAFFIC WITH OUT THE GREEN ARROW AND YOU REALLY HAVE TO GET ACROSS QUICKLY SOMETIMES IT WORKS SOMETIMES IT DOESN'T. THIS OCCURS RANDOMLY BUT YET APPROXIMATELY 10 TO 20 TIMES A WEEK. RIGHT NOW THE SUV IS IN THE SERVICE CENTER. I HAVE REQUESTED THE NEXT REPAIR TO BE PERFORMED VIA TSB 07-13-8 BUT THE DEALER IS INSISTING THAT I MUST DEMONSTRATE THE PROBLEM BEFORE THEY WILL REPAIR IT PER ABOVE MENTIONED TSB....... THEY TOOK MY WORD BEFORE FOR THE REPROGRAMMING AND THE VALVE REPLACEMENT BUT NOW THEY DO NOT SEEM TO BELIEVE ME ANYMORE. *JB
TRANSMISSION PROBLEMS THAT RESULTED AFTER RECALIBRATION IN RESPONSE TO RECAL NOTICE. VEHICLE NOW LURCHES FORWARD BY ITSELF WHEN STOPPED AT A TRAFFIC LIGHT. ONE NEEDS TO STAND ON THE BRAKES TO PREVENT VEHICLE FROM STRIKING OTHER VEHICLES.
VEHICLE WOULD NOT SHIFT GEARS. 4 RPMS AT 25 MPH. VEHICLE SLOWED. PULLED OVER AND FRONT BRAKES WERE ON FIRE. *AK
THE TRANSMISSION IN MY 2006 MERCURY MOUNTAINEER HAS "POPPED" INTO REVERSE TWICE ONCE IT WAS PLACED INTO PARK, CAUSING IT TO ROLL BACKWARDS. IT ALSO ROLLS FORWARD AND BACKWARDS WHEN PLACED IN PARK UNTIL IT "CATCHES" AND FINALLY LOCKS IN PLACE. WHEN CLIMBING HILLS OR STEEP GRADES, THE TRANSMISSION WILL SURGE, AND WHEN COMING TO A STOP, THE TRANSMISSION WILL SHIFT HARD AND JERK. *NM
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
Data on this page last refreshed .