RoadVitals

2002 Mercury Mountaineer Driver assistance Problems

Owner-reported complaints naming the driver-assistance system, filed with NHTSA

Data refreshed

Driver assistance reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
19
Latest Jun 5, 2017
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
5%
of 372 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
5
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2002 Mercury Mountaineer submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 19 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.

Owner reports naming driver-assistance

Shown in the owner’s own words, exactly as filed

BrakesDriver assistanceElectrical
Filed Jun 5, 2017

I PURCHASED A VEHICLE ON MARCH 11, 2017 FROM A DEALERSHIP NAMED REDEFINED AUTO SALES IN SKOKIE, IL. SINCE I HAVE PURCHASED THIS VEHICLE, I HAVE SPENT OVER $1,500 IN COSTS FOR REPAIRS TO THIS VEHICLE, BEGINNING WITH I HAD TO GET AN OIL CHANGE ON THE SAME DAY THAT I PURCHASED THE VEHICLE BECAUSE THE CHANGE OIL REQUIRED LIGHT CAME ON AS SOON AS I EXITED THE EXPRESSWAY IN ROUTE FROM THE DEALERSHIP. ALSO, AS I WAS EN ROUTE FROM THE DEALERSHIP, ON THE EXPRESSWAY A MOTORIST TRIED TO CUT ME OFF AND THAT IS WHEN I FOUND OUT THAT THE HORN WAS NOT WORKING. THINGS HAVE JUST WENT DOWNHILL FROM THERE.

NHTSA ID
10993134
Incident
Mar 11, 2017
Driver assistanceElectricalPowertrain (other)
Filed Nov 21, 2016

WHEN GOING 25-30 MPH VEHICLE WILL NOT SHIFT.IT ACTUALLY KICKED THE VEHICLE BACK. OD LIGHT STARTED TO FLASH THEN SERVICE ENGINE SOON LIGHT CAME ON.BEEN DOING THIS SINCE. WENT TO GO GET MOUNTAINEER READ AND OF COARSE..THE TRANSMISSION..SOMETHING NEEDS TO BE DONE OTHERWISE THIS MIGHT EVENTUALLY LEAD TO A LAWSUIT AFTER READING ALL OF THE COMPLAINTS ON THE EXACT SAME THING.

NHTSA ID
10927341
Incident
Nov 21, 2016
Mileage
150,351 mi
Driver assistance
Filed Sep 10, 2013

THE SPEED CONTROL DEACTIVATION SWITCH WAS REPLACED IN MY 2002 MERCURY MOUNTAINEER BY A LOCAL DEALER AFTER THE ORIGINAL RECALL WAS ISSUED [FORD RECALL CAMPAIGN NUMBER 09S09]. APPROXIMATELY 6 MONTHS AGO, THE LOW BRAKE FLUID LIGHT BEGAN TO ILLUMINATE. OVER TIME, THE CAUSE OF THE BRAKE FLUID LOSS BECAME OBVIOUS AS THE BRAKE FLUID BEGAN TO VISIBLY LEAK FROM THE NEW SPEED CONTROL DEACTIVATION SWITCH. PRESENTLY, THE LOW BRAKE FLUID LEVEL LIGHT ILLUMINATES EVERY THREE TO FOUR DAYS WITH MINIMAL DRIVING. THE BRAKE FLUID RESERVOIR REQUIRES APPROXIMATELY ONE QUARTER OF ITS CAPACITY UPON EVERY OCCURRENCE. IT APPEARS THAT THE REPLACEMENT SPEED CONTROL DEACTIVATION SWITCH MAY BE FAULTY AS WELL. HOPEFULLY, THIS IS A RARE OCCURRENCE, BUT IN CASE IT BECOMES MORE WIDE SPREAD, I WANTED TO BRING THE ISSUE TO SOMEONE'S ATTENTION. *TR

NHTSA ID
10542993
Incident
Feb 1, 2013
Mileage
150,000 mi
Driver assistanceElectrical
Filed Oct 6, 2010
Fire reported

2002 MERCURY MOUNTAINEER. CONSUMER STATES VEHICLE CAUGHT FIRE UNDER THE HOOD *TGW THE CONSUMER BELIEVED THE REASON FOR THE VEHICLE CATCHING ON FIRE WAS DUE TO A FAULTY STARTER. THE CONSUMER ALSO MAILED IN A RECALL LETTER REGARDING THE SPEED CONTROL DEACTIVATION SWITCH. *JB

NHTSA ID
10359790
Incident
Jun 22, 2008
Driver assistanceInterior & seats
Filed Jul 1, 2010

I WAS DRIVING MY 2002 MERCURY MOUNTAINEER ON VACATION IN FLORIDA 1400 MILES FROM HOME WITH MY KIDS, I WAS ON THE INTERSTATE 75 ON ALLIGATOR ALLEY WHEN I WAS COMING UP ON TWO SEMI TRUCKS, I APPLIED THE BRAKE AND INSTEAD OF THE CRUISE CONTROL SHUTTING OFF IT SPED UP FAST SENDING ME TOWARDS THE SEMI TRAILERS GOING ABOUT 85 MPH, I SLAMMED ON THE BRAKES AND VEERED OFF THE INTERSTATE ONTO THE SHOULDER AND GRABBED THE GEAR SHIFT LEVER TO DOWNSHIFT TO SLOW IT DOWN AND THE SHIFT LEVER BROKE OF IN MY HAND, I GOT THE SUV HOME AND CONTACTED THE FORD DEALER AND I WAS TOLD THAT THERE IS A RECALL ON THE CRUISE CONTROL FOR FAILURE BUT THAT I HAVE TO PAY AROUND 1 THOUSAND DOLLARS FOR THE SHIFTER ARM THAT BROKE OFF WHEN THE CRUISE CONTROL DEFECT CAUSED ALL OF THIS IN THE FIRST PLACE AND THE SHIFTER ARM SHOULD BE A RECALL ALSO AS THERE ARE THOUSANDS AND THOUSANDS OF INSTANCES OF SHIFTER ARMS BREAKING ON THESE MODELS. *TR

NHTSA ID
10340877
Incident
Jun 28, 2010
Mileage
99,000 mi
Body & structureDriver assistanceTransmission
Filed Jun 15, 2010

I OWN A 2002 MERCURY MOUNTAINEER. THE TAILGATE DEVELOPED A CRACK BETWEEN THE EMBLEM AND THE REAR GLASS LIFT. IT WAS FIXED ONCE ALREADY AND HAS SINCE CRACKED AGAIN. SINCE THIS CRACK HAS DEVELOPED, THE DOOR AJAR LIGHT HAS COME ON. I HAVE NOTICED THE SAME CRACK IN ALMOST EVERY FORD EXPLORER AND MOUNTAINEER THAT I SEE. I CONTACTED THE DEALER TO HAVE IT REPAIRED AGAIN AND WAS TOLD THAT THEY ONLY COVER THE REPAIR ONCE. I DON'T FEEL I SHOULD HAVE TO PAY OUT OF POCKET FOR AN OBVIOUS MANUFACTURING DEFECT. I THEN CONTACTED FORD AND WAS TOLD THERE IS NOTHING THEY CAN DO FOR ME. KEEP IN MIND, I HAVE ALSO HAD NUMEROUS VISITS FOR MY TRANSMISSION HAVING ISSUES FROM THE BEGINNING AND I HAVE ALSO HAD ISSUES WITH THE CRUISE CONTROL WHERE IT SUDDENLY "TAKES OFF" AND GOES REALLY FAST. FORD NEEDS TO STAND BY IT'S VEHICLES AND FIX THEM WHEN THERE ARE OBVIOUS MANUFACTURER DEFECTS! *TR

NHTSA ID
10336445
Incident
Jun 1, 2010
Mileage
90,000 mi
Driver assistance
Filed Nov 9, 2007
Crash reported

2002 MERCURY MOUNTAINEER WITH SUDDEN ACCELERATION PROBLEMS. STATE FARM INSURANCE WOULD LIKE TO KNOW IF SOMEONE WANTED TO LOOK AT THE VEHICLE BEFORE REPAIRS WERE MADE. *KB THE CONSUMER HIT A HOMEOWNERS GARAGE. *JB

NHTSA ID
10208389
Incident
Oct 23, 2007
Driver assistance
Filed Jun 25, 2006

WHILE DRIVING THE ENTIRE ACCELERATOR ASSEMBLY FELL OFF ONTO THE FLOOR. THIS OCCURRED ON INTERSTATE. *NM

NHTSA ID
10160684
Incident
Jun 24, 2006
Driver assistanceFuel system
Filed Oct 12, 2005
Crash reported

MY WIFE WAS PULLING INTO A PARKING SPACE WHEN THE VEHICLE SURGED FORWARD RESULTING IN A CRASH WITH A METAL HAND RAIL AND TWO AIR CONDITIONING UNITS. NO DEFINITIVE CAUSE HAS BEEN ESTABLISHED EXCEPT. A WITNESS SAYS SHE HEARD AN ENGINE REV UP JUST PRIOR TO THE CRASH. *JB

NHTSA ID
10139426
Incident
Oct 12, 2005
Mileage
67,000 mi
Driver assistance
Filed Sep 8, 2005

VEHICLE HAS SUDDEN SPEED WHILE TRYING TO BRAKE. *JB

NHTSA ID
10135795
Incident
Aug 5, 2005
Mileage
35,000 mi
Driver assistanceTransmission
Filed Jul 14, 2005

DT: ABOUT TWO YEARS AGO OWNER PURCHASED THE VEHICLE 2002 MERCURY MOUNTAINEER. RIGHT AWAY OWNER COMPLAINED OF ACCELERATION PROBLEM. WHILE DRIVING ON THE ROAD VEHICLE FELT LIKE IT WAS SHIFTING WHEN IT ACCELERATED. VEHICLE USUALLY DID THIS ABOUT 25-30 MPH OR EVEN HIGHER SPEEDS. THE RPMS WOULD RAISE AND INCREASE SPEED. IT FELT LIKE A TRANSMISSION PROBLEM BECAUSE IT WOULD ACCELERATE, AND RAISE THE RPMS WITHOUT WARNING. THERE WERE NO LIGHTS TO INDICATE A PROBLEM. THE FIRST TIME THE VEHICLE WAS TAKEN TO THE DEALER THEY DIDN'T KNOW WHAT THE PROBLEM WAS. THE DEALERSHIP WAS COOPERATIVE. THE DEALER REPLACED ABOUT HALF THE TRANSMISSION BECAUSE THEY WERE THINKING THAT IT WAS A TRANSMISSION PROBLEM. THE PROBLEM HAS REMAINED ABOUT THE SAME AND WAS STILL GOING ON. WHEN IT ACCELERATED BY ITSELF IT SPED UP ABOUT 5-10 MPH. THE RPMS WENT UP BY ABOUT 1000. OWNER WOULD LIKE TO MAKE THE OFFICE OF DEFECT INVESTIGATION INVESTIGATORS AWARE THAT HE WOULD LIKE TO HAVE SOMEONE COME AND CHECK OUT THE VEHICLE, AND EVEN TAKE THE VEHICLE AWAY FOR FURTHER ANALYSIS IF THEY WOULD LIKE TO. HE ANOTHER VEHICLE TO DRIVE, AND INSISTED ABOUT GETTING THE PROBLEM WITH THE ACCELERATOR REPAIRED.*AK

NHTSA ID
10128756
Incident
Nov 30, 2004
Mileage
100 mi
Driver assistanceTransmission
Filed May 13, 2005
Crash reported

WHILE REVERSING IN LOW SPEED, THE VEHICLE INADVERTENTLY ACCELERATED INTO A POLE. THE DEALERSHIP WAS NOTIFIED, BUT DID NOT RESOLVE THE PROBLEM. *AK THE CONSUMER EXPERIENCED SUDDEN ACCELERATION. THE CONSUMER BELIEVED THAT THE PEDAL STUCK. THE TRANSMISSION PAN WAS REMOVED AND THEN RE-SEALED. THE MAIN CONTROL VALVE BODY WAS REMOVED AND REPAIRED. *SC *JB

NHTSA ID
10117228
Incident
Mar 27, 2005
Mileage
20,000 mi
Driver assistance
Filed Feb 21, 2005

WHEN THE VEHICLE IN PUT INTO DRIVE FROM PARK, THE VEHICLE JUMPS FORWARD EVEN THOUGH THE GAS HAS NOT BEEN APPLIED. THE PROBLEM WAS REPORTED TO THE DEALER WHO STATED THEY REPROGRAMMED THE VEHICLE COMPUTER.

NHTSA ID
10111877
Incident
Feb 18, 2005
Driver assistance
Filed Jun 10, 2004

WHILE DRIVING ON A NEIGHBORHOOD ROAD THE ENTIRE ACCELERATOR ASSEMBLY FELL OF ONTO THE FLOOR. I FOUND NO EVIDENCE OF THE NUTS USED TO AFFIX THE ASSEMBLY TO THE FIRE WALL. HAD THIS OCCURRED ON INTERSTATE DRIVING OR IN HEAVY CITY TRAFFIC AN ACCIDENT COULD HAPPEN. *AK

NHTSA ID
10075196
Incident
Jun 10, 2004
Mileage
37,667 mi
Body & structureBrakesDriver assistance+2 more
Filed Jun 11, 2003

THE FRONT END DASH HAS A VERY LOUD RATTLE WHILE LETTING UP ON THE GAS OR DEPRESSING THE BRAKE THE VEHICLE HAS BEEN IN THE SHOP FIVE TIMES. THEY HAVE READJUSTED THE A/C LINES MANY TIMES, TIGHTENED ITEMS IN THE ENGINE, AND REPLACED A MISSING BOLT IN THE FIREWALL. IT WAS FIXED ONCE THAT LAST A COUPLE OF MONTHS, BUT THE NOISE IS BACK. IT WILL BE GOING IN THE SHOP FOR THE SIXTH TIME. ALSO, THERE IS A SQUEAK WHEN GOING OVER BUMPS. IT HAS BEEN IN THE SHOP TWICE AND THEY REPLACED THE BALL BEARING JOINTS. HOWEVER, THE SQUEAK IS BACK.*AK

NHTSA ID
10021402
Incident
Jun 11, 2003
Driver assistance
Filed Jan 23, 2003

CONSUMER STATES VEHICLE SUFFERED SUDDEN ACCELERATION WHEN SHIFTED FROM PARK INTO DRIVE, VEHICLE COLLIDES WITH LIGHT POLE DAMAGING THE FRONT OF THE VEHICLE. AND NEITHER OF THE AIR BAGS DEPLOY. DEALER HAS BEEN NOTIFIED. PLEASE PROVIDE FURTHER INFORMATION. TS

NHTSA ID
10004531
Incident
Jan 21, 2003
Driver assistance
Filed Apr 18, 2002
Crash reported

CONSUMER STATES WHILE ATTEMPTING TO PARK THE VEHICLE SUDDENLY TOOK OFF FOR NO REASON. CONSUMER STATES VEHICLE HIT A LIGHT POLE. NLM

NHTSA ID
8007985
Incident
Apr 13, 2002
Driver assistanceTransmission
Filed Oct 29, 2001

WHEN BRAKES ARE APPLIED AND MAKING A SUDDEN STOP VEHICLE IDLES IN NEUTRAL. THEN, JUMPS INTO DRIVE. WHEN GAS PEDAL IS DEPRESSED VEHICLE WILL NOT RESPOND. DEALER HAS BEEN CONTACTED. PLEASE PROVIDE FURTHER DETAILS.*AK

NHTSA ID
898355
Incident
Jul 10, 2001
Driver assistance
Filed Aug 13, 2001

SERVICE BULLETIN 14966 STATES DO NOT REPLACE ANY PARTS IN AN EFFORT TO REPAIR THE VEHICLE - VEHICLE HAS BEEN IDLE AT OFFICE SINCE RETURNED FROM DEALER ON JULY 24,2001 - FORD MOTOR CONTINUES TO SELL THIS VEHICLE WITH THE SAME PROBLEM - FORD REGIONAL SERVICE MAMAGER CONTACTED ME ON TWO OCCASIONS AND WAS TO GET BACK BY AUGUST 7, 2001 BUT HAS NOT DONE SO. THE VEHICLE HAS BEEN PARKED AS I FEEL THAT WHERE A DRIVE TRAIN IS INVOLVED, IT COULD BE DANGEROUS - I HAVE ASKED THAT THE VEHICLE BE REPLACE AS IT HAS BEEN OUT OF SERVICE FOR 21 DAYS.*AK

NHTSA ID
750317
Incident
Jul 16, 2001

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.

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Data on this page last refreshed .