Total Complaints
153 filings
MERCURY MOUNTAINEER · model year
153 NHTSA complaints, 9 crash reports, and 2 recall campaigns listed for this cohort. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2006MERCURYMOUNTAINEER carries 153 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 9 crashes, 5 fires, 8 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
The most frequently selected component label in reports for the 2006 MOUNTAINEER is power train:automatic transmission with 23 filings, followed by engine and engine cooling:cooling system (19) and engine and engine cooling (17). Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause. This cohort has 2 NHTSA recall campaigns listed below. Enter a VIN in NHTSA's official recall lookup to determine whether a specific vehicle has an unrepaired recall.
NHTSA currently has 3 investigation files overlapping the 2006 MOUNTAINEER. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
Total Complaints
153 filings
Crashes Reported
9 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| POWER TRAIN:AUTOMATIC TRANSMISSION | 23 |
| ENGINE AND ENGINE COOLING:COOLING SYSTEM | 19 |
| ENGINE AND ENGINE COOLING | 17 |
| POWER TRAIN | 14 |
| ENGINE | 14 |
| UNKNOWN OR OTHER | 9 |
| ELECTRICAL SYSTEM | 7 |
| SEATS | 6 |
| ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY | 5 |
| STRUCTURE:BODY | 5 |
| FUEL SYSTEM, GASOLINE | 3 |
| ELECTRICAL SYSTEM:WIRING | 2 |
| EQUIPMENT | 2 |
| TIRES | 2 |
| STRUCTURE | 2 |
VISIBILITY:GLASS, SIDE/REAR
CERTAIN CURVED TEMPERED REPLACEMENT GLASS MANUFACTURED BY HANGZHOU SAFETY GLASS LTD AND SUPPLIED TO SAFELITE BY AUTO TEMP INC., IDENTIFIED AS DOT-430, AND SOLD FOR USE ON CERTAIN DOMESTIC AND FOREIGN VEHICLES MAY NOT BREAK INTO SMALL PIECES AS EXPECTED OF TEMPERED GLASS AND FAILS TO CONFORM TO FEDER
VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR
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.
The contact owns a 2006 Mercury Mountaineer. The contact stated that her husband informed her that the vehicle had experienced an unknown radiator failure. The vehicle was taken to an independent mechanic, where the radiator was replaced; however, the failure reoccurred. The vehicle was repaired for a second time by an independent mechanic; however, the failure persisted. The local dealer was made aware of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 143,869.
Mileage: 143,869
My shifter continuously won’t come out of park. Multiple other people with the same kind of vehicle have posted on forums with the same issue. It’s happened weekly for a year or more. I keep getting told there’s a recall on it but can’t find it.
There is a known issue with the cluster panel’s relay that has caused my headlights to flash off and on randomly as it malfunctions.
MY CAR WILL JERK AS I'M DRIVING RPMS GOING HIGH WHILE NO SPEED IS PICKING UP. WITH JUMP OUT OF GEAR WHEN AT STOP LIGHT. LOUD GRINDING NOISE FROM TIRES COULD HAVE FOOT ALL THE WAY DOWN ON GAS PETAL AND GO NO FASTER.
MY CAR WILL JERK AS I'M DRIVING RPMS GOING HIGH WHILE NO SPEED IS PICKING UP. WITH JUMP OUT OF GEAR WHEN AT STOP LIGHT. LOUD GRINDING NOISE FROM TIRES COULD HAVE FOOT ALL THE WAY DOWN ON GAS PETAL AND GO NO FASTER.
MY CAR WILL JERK AS I'M DRIVING RPMS GOING HIGH WHILE NO SPEED IS PICKING UP. WITH JUMP OUT OF GEAR WHEN AT STOP LIGHT. LOUD GRINDING NOISE FROM TIRES COULD HAVE FOOT ALL THE WAY DOWN ON GAS PETAL AND GO NO FASTER.
2006 MERCURY MOUNTAINEER, 123,000 MILES. NOTICE (BOTTOM) OF BOX SUBFRAME, LOCATED REAR DRIVER SIDE ONLY. FOWARD OF REAR AXLE, HAS EXCESSIVE CORROSION IN A LENGTH OF 8 TO 10 INCHES. CORROSION HAS ROTTED THROUGH THIS AREA. VEHICLE HAS 123000 MILES ON IT. ALSO VEHICLE HAS SURFACE CORROSION ALL OVER BOTTOM OF SUBFRAME. FORD DID NOT APPLY CORROSION COATINGS ON THIS SUB FRAME PROPERLY. THIS COULD BE A HAZARD FOR OTHER VEHICLES AS WELL AS TIME GOES ON. NOTICE OTHER FORD VEHICLES HAVE NUMEROUS PROBLEMS AND RECALLS WITH SUB FRAME CORROSION, RANGING FROM 2001 THROUGH 2014. FORD'S VENDORS THAT FABRICATE THESE PARTS SHOULD BE UPDATED WITH MODERN PROCEDURES TO APPLY CORROSION PREVENTED COATINGS ON THESE PARTS PROPERLY. SHOULD BE A RECALL ON THESE SECTIONS FOR REPAIR... NO ACCIDENTS, NO ISSUES, AS TIME GOES ON THERE MAYBE PROBLEMS IN THE FUTURE WITH FORD PRODUCTS SUB FRAME CORROSION RESULTING IN ACCIDENTS ON ROADS.
Mileage: 123,000
THE GEAR SHAFT WILL STOP MY CAR FROM STARTING WHEN I TURN IT OFF. IT WILL ALSO MAKE MY CAR VUT OFF WHILE DRIVING..THE BUTTON ON THE GEAR STICK WILL GET STUCK AND I AM ABLE TO SHIFT GEARS...WHEN THE CAR IS NOT STARTED AND MY FOOT IS NOT ON THE BREAKS. EVEN WHEN THE BUTTON IS NOT STUCK, IT STILL WILL GET STUCK IN PARK AND WONT LET ME START MY CAR..A RECALL SHOULD BE STARTED..BECAUSE I HAVE SEEN OTHERS ON HERE WITH SIMILAR COMPLAINTS..SO ITS A MANUFACTURING ACCIDENT NOT THE CONSUMER.
Mileage: 166,000
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.
Mileage: 100,000
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.
Mileage: 100,000
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.
Mileage: 100,000
I LIVE IN QUINCY, MA. WHEN IT SNOWS OR GETS COLD THE CAR INTERMITTENTLY, MAJORITY OF TIME IN REVERSE, LOCKS IN REVERSE, SELF ACCELERATING, AND EVEN WHEN I BRAKE IT OVERRIDES THE BRAKING SYSTEM. LAST NIGHT IT ACTUALLY SELF DISPLAYED THE 4X4 LIGHT ON DASHBOARD. WHEN I MEAN ACCELERATES, I MEAN UNCONTROLLABLE ACCELERATION.
I PURCHASED THIS VEHICLE RECENTLY WITH ONLY 40,000 MILES. THE CAR KEEPS STALLING OR DYING AS YOU MAY SAY AS I DRIVE. IT WILL BE OKAY FOR A SHORT PERIOD OF TIME AND THEN JUST DIE RIGHT ON THE HIGHWAY! ONCE IT DIES ONCE, THE CAR WILL CONTINUE TO DO SO OVER AND OVER AGAIN UNTIL THE ENGINE HAS COOLED DOWN. I HAVE THE ENGINE CODES OF P2104, P2111 AND P2135 WITH A REFERE TO P2101. I HAVE BROUGHT IT TO SEVERAL MECHANICS AND PAID WELL OVER $1,000 TO FIX THIS PROBLEM AND IT JUST CONTINUES. I AM AFRAID MY FAMILY MAY ALL DIE! WERE ON 93 RECENTLY HEADING TOWARD BOSTON AND MY CAR DIED RIGHT AT THE INTERSECTION OF 495. I HAD ALL MY CHILDREN IN THE CAR AND IT WOULD NOT RESTART. I HAVE FIXED THE FUEL SYSTEM (ERROR CODE LAST TIME), HAD A COMPLETE TUNE UP, AND THROTTLE SENSOR ETC.
Mileage: 42,000
I PURCHASED THIS VEHICLE RECENTLY WITH ONLY 40,000 MILES. THE CAR KEEPS STALLING OR DYING AS YOU MAY SAY AS I DRIVE. IT WILL BE OKAY FOR A SHORT PERIOD OF TIME AND THEN JUST DIE RIGHT ON THE HIGHWAY! ONCE IT DIES ONCE, THE CAR WILL CONTINUE TO DO SO OVER AND OVER AGAIN UNTIL THE ENGINE HAS COOLED DOWN. I HAVE THE ENGINE CODES OF P2104, P2111 AND P2135 WITH A REFERE TO P2101. I HAVE BROUGHT IT TO SEVERAL MECHANICS AND PAID WELL OVER $1,000 TO FIX THIS PROBLEM AND IT JUST CONTINUES. I AM AFRAID MY FAMILY MAY ALL DIE! WERE ON 93 RECENTLY HEADING TOWARD BOSTON AND MY CAR DIED RIGHT AT THE INTERSECTION OF 495. I HAD ALL MY CHILDREN IN THE CAR AND IT WOULD NOT RESTART. I HAVE FIXED THE FUEL SYSTEM (ERROR CODE LAST TIME), HAD A COMPLETE TUNE UP, AND THROTTLE SENSOR ETC.
Mileage: 42,000
I PURCHASED THIS VEHICLE RECENTLY WITH ONLY 40,000 MILES. THE CAR KEEPS STALLING OR DYING AS YOU MAY SAY AS I DRIVE. IT WILL BE OKAY FOR A SHORT PERIOD OF TIME AND THEN JUST DIE RIGHT ON THE HIGHWAY! ONCE IT DIES ONCE, THE CAR WILL CONTINUE TO DO SO OVER AND OVER AGAIN UNTIL THE ENGINE HAS COOLED DOWN. I HAVE THE ENGINE CODES OF P2104, P2111 AND P2135 WITH A REFERE TO P2101. I HAVE BROUGHT IT TO SEVERAL MECHANICS AND PAID WELL OVER $1,000 TO FIX THIS PROBLEM AND IT JUST CONTINUES. I AM AFRAID MY FAMILY MAY ALL DIE! WERE ON 93 RECENTLY HEADING TOWARD BOSTON AND MY CAR DIED RIGHT AT THE INTERSECTION OF 495. I HAD ALL MY CHILDREN IN THE CAR AND IT WOULD NOT RESTART. I HAVE FIXED THE FUEL SYSTEM (ERROR CODE LAST TIME), HAD A COMPLETE TUNE UP, AND THROTTLE SENSOR ETC.
Mileage: 42,000
TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. WHILE THE VEHICLE WAS STATIONARY, IT WOULD NOT REVERSE WHEN PROMPTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 154,758.
Mileage: 154,758
"TAKATA RECALL" PAINTING, SEATS ELECTRIC, LIGHT OF THE ENGINE.
"TAKATA RECALL" PAINTING, SEATS ELECTRIC, LIGHT OF THE ENGINE.
"TAKATA RECALL" PAINTING, SEATS ELECTRIC, LIGHT OF THE ENGINE.
"TAKATA RECALL" ENGINE ALWAYS TURNS OFF WHILE DRIVING. I FIXED IT AT 3 DIFFERENT WORKSHOPS AND STILL THE SAME.
Data vintage: August 2026. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 2006 MERCURY MOUNTAINEER; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.