NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
82 reports80,000 miles · May 19, 2010
Steering
TL*THE CONTACT OWNS A 2005 MERCURY MOUNTAINEER. WHILE DRIVING 40 MPH, THE CONTACT NOTICED THAT THE VEHICLE BEGAN TO SWAY BACK AND FORTH IN THE REAR. THE VEHICLE WAS TAKEN TO A REPAIR SHOP BUT THE MECHANIC COULD NOT DUPLICATE OR DIAGNOSE THE FAILURE. THE CONTACT REPLACED ALL OF THE TIRES AND BRAKES; HOWEVER, THE FAILURE CONTINUED…
Read full complaint
TL*THE CONTACT OWNS A 2005 MERCURY MOUNTAINEER. WHILE DRIVING 40 MPH, THE CONTACT NOTICED THAT THE VEHICLE BEGAN TO SWAY BACK AND FORTH IN THE REAR. THE VEHICLE WAS TAKEN TO A REPAIR SHOP BUT THE MECHANIC COULD NOT DUPLICATE OR DIAGNOSE THE FAILURE. THE CONTACT REPLACED ALL OF THE TIRES AND BRAKES; HOWEVER, THE FAILURE CONTINUED TO OCCUR. THE FAILURE MILEAGE WAS APPROXIMATELY 80,000. THE CURRENT MILEAGE WAS APPROXIMATELY 102,000.
NHTSA ODI #10331186
36,000 miles · Mar 10, 2010
Air BagsService Brakes, HydraulicCrash
ON DECEMBER OF 2007, I DROVE INTO MY GARAGE AT A SLOW SPEED. I APPLIED THE BRAKES TO BE ABLE TO PARK THE SUV. THE CAR WOULD NOT STOP UNTIL IT HIT THE INNER WALL OF THE HOUSE. THE AIR BAG DID NOT GO OFF AFTER THE IMPACT.. TOOK THE CAR IN AFTER REPAIR TO FRONT OF CAR WAS DONE. THE DEALER'S SERVICE DEPARTMENT COULD NOT FIND ANYT…
Read full complaint
ON DECEMBER OF 2007, I DROVE INTO MY GARAGE AT A SLOW SPEED. I APPLIED THE BRAKES TO BE ABLE TO PARK THE SUV. THE CAR WOULD NOT STOP UNTIL IT HIT THE INNER WALL OF THE HOUSE. THE AIR BAG DID NOT GO OFF AFTER THE IMPACT.. TOOK THE CAR IN AFTER REPAIR TO FRONT OF CAR WAS DONE. THE DEALER'S SERVICE DEPARTMENT COULD NOT FIND ANYTHING WRONG. 01/10/08 ON JUNE 17, 2008, MY HUSBAND WAS PARKING THE CAR TO LET ME OUT TO GO TO THE DOCTOR'S OFFICE, THE SUV WOULD NOT STOP UNTIL MY HUSBAND PUT THE SUV IN PARK AND SHUT THE ENGINE OFF. *TR
NHTSA ODI #10318779
33,000 miles · Feb 12, 2010
Structure
UPPER SECTION OF REAR HATCH BODY CRACKS. MADE OF PLASTIC. CHANGED ON NEXT YEAR MODELS TO ALL METAL. THIS THE SECOND OCCURRENCE OF THE DEFECT. FORD REFUSES TO REPAIR FREE OF CHARGE.*TR
NHTSA ODI #10308942
43,000 miles · Jan 6, 2010
Power Train
EXTREMELY HARD SHIFTING INTO REVERSE. SLIPPING IN 3RD GEAR WHEN TRANSMISSION IS RUNNING FOR 15 MINUTES. OVER DRIVE LIGHT FLASHES AND TRANSMISSION FAILS TO WORK WHILE ON HIGHWAY. I HAVE TO SHIFT INTO NEUTRAL TURN THE CAR OFF THEN BACK ON (WHILE AT 65MPH) THEN IT WORKS FINE THE REST OF THE DAY. *TR
NHTSA ODI #10298444
31,000 miles · Jul 20, 2009
StructureVisibility
TL*THE CONTACT OWNS A 2005 MERCURY MOUNTAINEER. WHILE EXAMINING THE VEHICLE, THE CONTACT NOTICED A CRACK EXTENDING FROM THE BOTTOM OF THE REAR GLASS TO THE BOTTOM OF THE VEHICLE. THE VEHICLE HAS NOT BEEN DIAGNOSED BY THE DEALER. THE CURRENT AND FAILURE MILEAGES WERE 31,000.
NHTSA ODI #10277452
35,000 miles · Jun 21, 2009
Engine And Engine CoolingFuel System, Gasoline
WITHOUT WARNING OF ANY KIND THE ENGINE QUITS UNDER 35 MPH, SOMETIMES WITH CRUISE CONTROL ON. AFTER CAR ROLLS TO A STOP, IT CAN RESTART RIGHT AWAY. LOSS OF POWER STEERING AND BRAKES. DEALER SAYS NO CODES TO BACK UP COMPLAINT. THIS HAS AS HAPPENED AT LEAST 3X SPREAD OVER 35,000 ODOMETER MILES. *TR
NHTSA ODI #10274542
50,001 miles · May 28, 2009
Power Train
TRANSMISSION SLIPPING ON A HILL CAUSING THE VEHICLE TO DRIFT BACKWARDS ALMOST CAUSING AN ACCIDENT WITH THE CAR BEHIND ME. *TR
NHTSA ODI #10270253
40,000 miles · May 21, 2009
Structure
MY 2005 MERCURY MOUNTAINEER DEVELOPED A CRACK IN THE REAR LIFT GATE RIGHT AROUND THE MERCURY EMBLEM. I HAVE SEEN MANY MORE WITH THE SAME PROBLEM, BOTH FORD EXPLORERS AND THE MERCURY MOUNTAINEER. WHEN I TOOK IT TO THE DEALER THEY WERE LIKE TOO BAD SO SAD IT IS OUT OF WARRANTY EVEN THOUGH I BOUGHT A EXTENDED WARRANTY FROM FORD. I…
Read full complaint
MY 2005 MERCURY MOUNTAINEER DEVELOPED A CRACK IN THE REAR LIFT GATE RIGHT AROUND THE MERCURY EMBLEM. I HAVE SEEN MANY MORE WITH THE SAME PROBLEM, BOTH FORD EXPLORERS AND THE MERCURY MOUNTAINEER. WHEN I TOOK IT TO THE DEALER THEY WERE LIKE TOO BAD SO SAD IT IS OUT OF WARRANTY EVEN THOUGH I BOUGHT A EXTENDED WARRANTY FROM FORD. I HAVE BEEN LOOKING AROUND NOW AND I SEE LOTS OF THEM WITH THE SAME PROBLEM. I HAVE HEARD THAT FORD IS FIXING THE EXPLORERS IF IT IS UNDER 5 YEARS AND UNDER 75,000 MILES BUT THAT JUST SEEMS TO BE A DEALER THING, I HAVE NOT SEEN ANY OFFICIAL ACCOUNT OF THIS. *TR
NHTSA ODI #10269589
20,000 miles · Apr 23, 2009
Power Train
MERCURY MOUNTAINEER 05 WITH LESS THEN 60,000 MILES, I WAS TOLD THAT THERE WAS WEARING IN THE VALVE CASE FROM AUTOMATIC TRANSMISSION WHICH CAUSES TRANSMISSION TO SKIP AND SHIFT HARD AND POP FORWARD, I NEED TO HAVE IT REPAIRED , TRANSMISSION PLACE STATES THIS IS A KNOWN PROBLEM WHICH HAS A TECHNICAL ADVISORY ABOUT IT....WHAT'S MY …
Read full complaint
MERCURY MOUNTAINEER 05 WITH LESS THEN 60,000 MILES, I WAS TOLD THAT THERE WAS WEARING IN THE VALVE CASE FROM AUTOMATIC TRANSMISSION WHICH CAUSES TRANSMISSION TO SKIP AND SHIFT HARD AND POP FORWARD, I NEED TO HAVE IT REPAIRED , TRANSMISSION PLACE STATES THIS IS A KNOWN PROBLEM WHICH HAS A TECHNICAL ADVISORY ABOUT IT....WHAT'S MY RECOURSE. *TR
NHTSA ODI #10266473
48,301 miles · Apr 6, 2009
Power Train
I WAS IN THE PARK POSITION. I TURNED MY ENGINE ON AND PLACED MY FOOT ON THE BRAKE AND TAKE MY CAR OUT OF PARK, WHEN THEN GEAR SHAFT/STICK BROKE IN HALF. I CONTACTED THE DEALER AND I HAD THEM COME GET THE CAR, THEY CONTACTED ME, AND STATED "THAT THEY HAVE NEVER SEEN SOMETHING LIKE THIS BEFORE", THAT CAME FROM THE SERVICE MANAGE…
Read full complaint
I WAS IN THE PARK POSITION. I TURNED MY ENGINE ON AND PLACED MY FOOT ON THE BRAKE AND TAKE MY CAR OUT OF PARK, WHEN THEN GEAR SHAFT/STICK BROKE IN HALF. I CONTACTED THE DEALER AND I HAD THEM COME GET THE CAR, THEY CONTACTED ME, AND STATED "THAT THEY HAVE NEVER SEEN SOMETHING LIKE THIS BEFORE", THAT CAME FROM THE SERVICE MANAGER BILL AMADEI, AND ANOTHER PERSON BILL IN THE SERVICE DEPARTMENT. I HAVE TAKEN A PICTURE OF WHAT IT LOOKS LIKE. IF I WAS NOT ALREADY IN THE PARK POSITION AND I WENT TO PLACE MY CAR FROM THE DRIVE TO PARK AND THIS HAPPENED, MY CAR COULD HAVE WENT RIGHT INTO MY HOUSE. WHEN I STATED THIS TO THE DEALER, HIS COMMENT WAS "YES, I GUESS THAT COULD HAVE HAPPENED." *TR
NHTSA ODI #10264281
NHTSA investigations
1EA09013 · Vehicle Rollaway Allegations
Opened Aug 18, 2009 · Closed Feb 12, 2013
Status: closed (inferred from source dates) · Power Train:automatic Transmission:gear Position Indication (prndl); Power Train:automatic Transmission:lever And Linkage:column Shift; Steering; Steering:column; Steering:column LOCKING:ANTI-THEFT Device
This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.
Additional source detail variants (5)
Power Train:automatic Transmission:gear Position Indication (prndl)
This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.
Power Train:automatic Transmission:lever And Linkage:column Shift
This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.
Steering:column
This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.
Steering:column LOCKING:ANTI-THEFT Device
This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.
Steering
This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.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.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.
Illustration