Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
140–25K
1825–50K
3150–75K
1475–100K
13100–150K
4150K+
94 reports with mileage · 23 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Engine And Engine Cooling. Review the 43 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Power Train. Review the 39 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Engine. Review the 14 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
6 crash reports2 fire reports6 injury reports
What owners actually said
117 reports
5,000 miles · Aug 15, 2007
Power Train
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 WO…
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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
NHTSA ODI #10199649
10,750 miles · Jun 8, 2007
Power Train
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.
NHTSA ODI #10192811
14,000 miles · Jun 6, 2007
Electrical System
VEHICLE STALLS AT RANDOM WHILE MY FOOT IS ON THE GAS, BEEN IN THE SHOP NOW 4 TIMES AND NO ONE CAN FIND ANYTHING WRONG
NHTSA ODI #10192564
Mileage unknown · May 22, 2007
Power TrainFire
VEHICLE WOULD NOT SHIFT GEARS. 4 RPMS AT 25 MPH. VEHICLE SLOWED. PULLED OVER AND FRONT BRAKES WERE ON FIRE. *AK
NHTSA ODI #10191507
33,001 miles · Apr 17, 2007
Visibility
TL*THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. ON A SNOWY DAY AFTER DRIVING THE VEHICLE THE DRIVER NOTICED THAT THE BACK REAR DOOR WINDOW WAS BROKEN. THE CONTACT STATED THAT THERE WAS NO PREVIOUS CRACKS OR EVIDENCE OF CRAKS IN THE WINDOW. THE LOCAL DEALER INFORMED HER THAT SHE WAS RESPONSIBLE FOR THE REPAIRS. ON 4/12/07 T…
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TL*THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. ON A SNOWY DAY AFTER DRIVING THE VEHICLE THE DRIVER NOTICED THAT THE BACK REAR DOOR WINDOW WAS BROKEN. THE CONTACT STATED THAT THERE WAS NO PREVIOUS CRACKS OR EVIDENCE OF CRAKS IN THE WINDOW. THE LOCAL DEALER INFORMED HER THAT SHE WAS RESPONSIBLE FOR THE REPAIRS. ON 4/12/07 THE DEALER INFORMED HER THAT THE HYDRAULIC VALVE THAT KEPT THE WINDOW OPEN AND THE HEAD OF IT WAS CRACKED. THE DEALER STATED THAT THE FAILURE COULD HAVE CAUSED THE WINDOW TO BREAK. THE CURRENT MILEAGE WAS 33,100, AND THE FAILURE MILEAGE WAS 33,001. *AK
NHTSA ODI #10188134
Mileage unknown · Jan 20, 2007
Power Train
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 …
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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
NHTSA ODI #10179251
2,757 miles · Oct 15, 2006
Electrical System
THE VEHICLE STALLS IN DRIVE WITHOUT WARNING. THE DEALERSHIP HAS BEEN UNABLE TO DETERMINE AND FIX THE PROBLEM.
ON CERTAIN TRUCKS, PASSENGER CARS AND SPORT UTILITY VEHICLES, THE WINDSHIELD WIPER MOTOR MAY HAVE BEEN PRODUCED WITHOUT GREASE BEING APPLIED TO THE OUTPUT SHAFT GEAR.
Consequence & remedy
Consequence: AFTER A PERIOD OF CONTINUOUS USE ON THE HIGH SPEED SETTING, LACK OF GREASE ON THE OUTPUT SHAFT GEAR MAY CAUSE THE GEAR TO DISTORT OR FRACTURE DURING OPERATION RESULTING IN A LOSS OF WIPER FUNCTION. INOPERATIVE WIPERS UNDER INCLEMENT WEATHER CONDITIONS COULD CAUSE A CRASH DUE TO IMPAIRED VISIBILITY.
Remedy: DEALERS WILL INSPECT THE WIPER MOTOR FOR THE PRESENCE OF GREASE AND GREASE THE WIPER MOTOR GEARS IF NECESSARY. THE RECALL BEGAN ON NOVEMBER 22, 2005. OWNERS MAY CONTACT FORD AT 1-800-392-3673 OR LINCOLN/MERCURY AT 1-800-521-4140.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2006 Mercury Mountaineer Problems, Complaints & Recalls | Skip That Year
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