Problems · NHTSA complaints

1997 Mercury Mountaineer problems

Owners filed 331 complaints about the 1997 Mercury Mountaineer with NHTSA between Oct 1996 and Mar 2021. The most-cited component is tires (137).

Complaints
331
Filed with NHTSA
Crashes
41
Reported by owners
Fires
10
Reported by owners
Injuries
19
People reported injured
Deaths
1
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Tires137
  2. Vehicle speed control59
  3. Service brakes, hydraulic38
  4. Suspension14
  5. Electrical system13
  6. Engine and engine cooling13
  7. Seat belts12
  8. Visibility12
  9. Structure9
  10. Power train8
  11. Equipment7
  12. Air bags7
  13. Latches/locks/linkages6
  14. Steering5

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 10, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
19962
199728
199817
199931
2000139
200144
200223
20036
20048
20055
20064
20074
20081
20094
20101
20112
20121
20132
20140
20153
20161
20171
20181
20191
20201
20211

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Tires

137 reports6 crashes1 fire1 related recall
“TIRE TREAD SEPARATED FROM THE SIDEWALL. THE CONSUMER HAD FOUR TIRES INSTALLED ON THE SUV AND WHEN THEY REACHED 1/2 OF TREAD, THE TWO FRONT TIRES EXPERIENCED SIDEWALL SEPARATION. *PH *JB”
Owner complaint to NHTSAFiled Aug 27, 2003TiresODI 10037877

Vehicle speed control

59 reports18 crashes1 fire3 related recalls
“TL* THE CONTACT'S HUSBAND OWNS A 1997 MERCURY MOUNTAINEER. THE CONTACT STATED THAT WHEN THE BRAKE PEDAL WAS RELEASED, THE VEHICLE UNINTENTIONALLY ACCELERATED. AS A RESULT, THE CONTACT'S HUSBAND REAR ENDED ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED AND THERE WERE NO INJURIES. THE VEHICLE WAS NOT TAKEN TO A DEALER OR INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 110,000.”
Owner complaint to NHTSAFiled Dec 4, 2019Vehicle speed controlCrash reportedODI 11286936

Service brakes, hydraulic

38 reports10 crashes1 fire
“I NEEDED MY BRAKES (ALL 4) DONE, AND NOTICED WHEN I STEPPED ON MY EMERGENCY BRAKE THE SUV WOULD NOT STOP AND BARELY SLOWED, AFTER GETTING IT BACK FROM DEALER WHICH I INFORMED OF TH E BRAKE, I TESTED THE E BRAKE AGIAIN AND ALL THOUGH IT NOW GRABBED THE CAR WOULD STILL MOVE FORWARD IN DRIVE WITH NO APPLIED PREASUR TO THE GAS. I TOOK IT BACK AND TOLD THEM THE E BRAKE STILL DID NOT WORK RIGHT , THAT IT WOULD NOT PASS INSPECTION(KEEPING THE SUV FROM MOVING AT 1100 RPMS). THIS IS WHAT WAS TOLD TO ME ALL MERCURY MOUNTAINEERS AND FORD EXPLORERS HAD THIS PROBLEM WITH THE EMERGENCY BRAKE AND IT CAN'T BE HELPED, HE TOLD ME HE COULD BRING OUT A BRAND NEW ONE AND IT WOULD DO THE SAME. I ASKED WHAT ABOUT INSPECTION- IT WON'T PASS HE SAID BRING IT TO THEM FOR INSPECTION AND THEY WOULD PASS IT . "NOT GOOD!" WHAT CAN BE DONE ABOUT THIS? IF IT IS TRUE ALL SUVS EXPLORERS AND MOUNTAINEERS ARE LIKE THIS THEY SHOULD BE RECALLED DON'T YOU THINK.?”
Owner complaint to NHTSAFiled Aug 28, 2002Service brakes, hydraulicODI 766364

Suspension

14 reports1 crash1 related recall
“TL* THE CONTACT OWNS A 1997 MERCURY MOUNTAINEER. HE EXPERIENCED DIFFICULT STEERING, BECAUSE THE FRONT SWAY BAR LINKAGE HAD FRACTURED. SECONDLY HE WOULD INTERMITTENTLY SMELL AN ODOR OF GASOLINE INSIDE OF THE VEHICLE. THIRDLY DURING BRAKE APPLICATION THE ACCELERATOR PEDAL WOULD ALSO STICK. THIS CONDITION WOULD CAUSE THE VEHICLE TO LURCH FORWARD. LASTLY THE MAIN BAR THAT HELD THE TWO BUMPERS TOGETHER HAD CORRODED. THE FAILURES WERE DESCRIBED IN RECALLS (98V060000, 00V422000, 00V402000). HOWEVER HE WAS ADVISED BY REPRESENTATIVES FROM THE DEALER AND THE MANUFACTURER THAT THE PREVIOUS OWNER HAD THE VEHICLE REPAIRED ACCORDING THE RECALLS. THE CURRENT MILEAGE WAS APPROXIMATELY 157,000. THE FAILURE MILEAGE WAS APPROXIMATELY 156,000.”
Owner complaint to NHTSAFiled Dec 11, 2009Suspension, Fuel system, gasoline, Structure, Vehicle speed controlODI 10295389

Electrical system

13 reports1 crash5 fires
“I WAS AT A GAS STATION MAKING A PURCHASE WITH MY DISABLED MOTHER. WE LEFT THE STORE, AND GOT INTO MY TRUCK. I STARTED MY TRUCK AND PROCEED TO DIVE TOWARDS THE EXIT OF THE GAS STATION WHEN I SMELLED SOMETHING LIKE BURNING RUBBER. I SAID TO MY MOTHER THAT SOMETHING SMELLED FUNNY AND THEN LOOKED AND SAW A THIN STEAM OF SMOKE COMING UP FROM IN BETWEEN MY LEGS. I PARKED THE TRUCK AND JUMPERS OUT LEAVING MY OM IN THE CAR. I THEN SAW A FIRE INSIDE OF THE METAL TRACK IN WHICH MY SEAT MOVES MECHANICALLY UNDERNEATH MY SEAT, WHERE THE WIRES ARE. I RAN INTO THE GAS STATION PANICKED AND ASKED THE ATTENDANT FOR A FIRE EXTINGUISHER, TO WHICH HE REPLIED " NO, I DON'T KNOW I DON'T HAVE ONE" AND DID NOTHING. SO I RAN BACK OUTSIDE TO MY TRUCK WHERE MY MOTHER WAS HAVING TROUBLE EXITING MY TRUCK AS SHE HAS ANXIETY AND HEALTH ISSUES. SHE FINALLY GOT OUT AND A TOW TRUCK THAT WAS DRIVING BY, SAW THE SMOKE GETTING HEAVIER AND FLOWING OUT OF MY TRUCK, HE STOPPED AND OUT THE FIRE OUT WITH AN EXTINGUISHER. THE FLAMES WERE COMING THROUGH MY SEAT AND I WAS AT A GAS STATION. I WAS TERRIFIED. I HAVE PTSD AND THIS HASN'T HELPED MY SLEEP AT ALL. ALSO, WE WERE AT A GAS STATION AND AS YOU KNOW,…”
Owner complaint to NHTSAFiled Jun 4, 2017Electrical systemFire reportedODI 10993068

Engine and engine cooling

13 reports2 fires
“WE REALLY DON'T HAVE ANY INFORMATION REGARDING THE INCIDENT. THE CAR HAD BEEN PARKED OUTSIDE FOR APPROXIMATELY 4 HOURS, WHEN UPON WAKING AT AROUND 3:50 AM ON SUNDAY MORNING, I SMELLED A STRANGE ODOR EMANATING FROM SOMEWHERE IN THE HOUSE. AS I INVESTIGATED, I SOON FOUND OUT THAT THE SMELL WAS NOT IN THE HOUSE, BUT OUTSIDE, AND THAT'S WHEN I FOUND MY CAR ABLAZE. THE FIRE DEPARTMENT HAD ALREADY BEEN CALLED BY THE TIME I REALIZED WHAT IT WAS, AND THE FIRE WAS PUT OUT. NO POLICE CAME, AND NO REPORT WAS FILED. THE ONLY INFORMATION GIVEN TO ANY OFFICIAL WAS MY NAME, MY CELL NUMBER, THE LICENSE PLATE NUMBER, AND POSSIBLY THE VIN. THE 1997 MERCURY MOUNTAINEER NOW SITS IN MY DRIVEWAY. *TR”
Owner complaint to NHTSAFiled Dec 16, 2008Engine and engine coolingFire reportedODI 10252041
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.