RoadVitals

2011 Mercury Mariner 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.
15
Latest Dec 15, 2014
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.
17%
of 87 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.
1
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
1

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 2011 Mercury Mariner submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 15 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

Driver assistanceFuel systemSteering
Filed Dec 15, 2014

DRIVING AT 40 MPH CAR STALLS, PULL OVER, CAR STARTS UP ENGINE LITE ON, (SAT) TAKE TO DEALER ON MON (12/15/2014), EXPLAIN TO DEALER, THEY CALL 3 HOURS LATER TO SAY "PURGE VALVE NEEDS TO BE REPLACED"OK THIS SHOULD BE COVERED RIGHT? SHE SAYS NO! THE COST TO YOU WILL BE $320.33. I TOLD HER THIS IS PART OF THE EMISSIONS, IT HAS TO BE, SHE SAID NO ITS NOT! I PURCHASED THIS CAR FROM THIS DEALER 3 1/2 YEARS AGO, (BOUGHT IS NEW) STILL UNDERWARRANTY.. BUT THIS IS NOT COVERED! THE 800 NUMBER TO FORDS BLEW ME OFF! AND SAID WHAT THE DEALER SAYS GOES!>. WHY DID SHE SUGGEST I CALL THEM THEN! (NOT GOOD CUSTOMER SERVICE) I WAS HOPING FOR EXPLANATION! PLEASE HELP, THIS SHOULD BE COVERED. LOOK AT YOUR ON LINE COMPLAINTS ABOUT THIS! SHAME SHAME SHAME. OF COURSE I PAID IT, I NEED MY CAR! PLEASE NOTE I WAS TOLD THAT THERE WERE AT 5 OR MORE CARS WITH THE SAME/SIMILAR PROBLEM. *TR

NHTSA ID
10664424
Incident
Dec 13, 2014
Mileage
37,900 mi
Driver assistanceFuel systemPowertrain (other)
Filed Jun 26, 2014

I WAS DRIVING DOWN THE HIGHWAY ON MY AFTERNOON COMMUTE HOME WITH MY 3 YR OLD DAUGHTER IN THE BACK SEAT AND MY VEHICLE LOST POWER AND THE CHECK ENGINE LIGHT AND A WRENCH LIGHT CAME ON AND IT WOULD NOT GO ABOVE 25 MPH. I ALMOST GOT HIT IN THE REAR OF MY VEHICLE CAUSE I WAS NOT EXPECTING THIS TO HAPPEN BY ANY MEANS, BUT I WAS ABLE TO COAST OFF THE HIGHWAY AND SHUT THE ENGINE DOWN FOR A FEW MINUTES AND RESTARTED IT DROVE ABOUT 5 MILES AND IT DID IT AGAIN. *TR

NHTSA ID
10606077
Incident
Jun 24, 2014
Mileage
60,000 mi
Driver assistance
Filed Dec 7, 2013

DRIVING DOWN A HIGHWAY AT 60MPH THE 2011 MERCURY MARINER STOPPED ACCELERATING. PULLED OVER TO THE SIDE OF THE ROAD. WAITED 3 SECONDS AND RESTARTED THE CAR. IT HESITATED TO TURN OVER BUT DID RESTART. *TR

NHTSA ID
10555198
Incident
Dec 7, 2013
Mileage
53,000 mi
AirbagsDriver assistance
Filed Sep 18, 2013
Crash reported1 injury reported

SHE PULLED INTO A PATIENTS DRIVEWAY AND STOPPED SHE WENT TO PUT IT IN PARK AND THE CAR JUST TOOK OFF INTO THE HOUSE. SHE (THE DRIVER) HAD TO BE TAKEN TO THE ER. SHE HAD HER FOOT ON THE BRAKE STILL WHEN THE CAR TOOK OFF. I HAVE PICTURES OF HOW THE RIGHT FRONT TIRE WAS DRAGGED THROUGH THE DIRT WHILE BRAKE WAS APPLIED. IT DAMAGED THE HOME AND DID OVER 5000.00 DAMAGE TO THE CAR. SHE INSISTS IT ACCELERATED UNEXPECTEDLY. *JB

NHTSA ID
10544299
Incident
Sep 17, 2013
Mileage
39,400 mi
Driver assistanceFuel system
Filed Sep 12, 2013

TRAVELING ON 2 LANE ROAD AT 55 MPH. ENGINE SET AT CRUISE CONTROL SPEED WHEN POWER WAS LOST. VEHICLE FELT LIKE IT WAS COASTING, THE ACCELERATOR WOULD NOT WORK. I WAS ABLE TO COAST TO A STOP ON A SIDE STREET, THEN HAD MY VEHICLE TOWED TO THE DEALER FOR REPAIRS. I CHECKED WEB SITES LAST NIGHT AND FOUND THIS TO BE A RECURRING PROBLEM WITH FORD ESCAPES AND MARINERS. COST OF REPAIR WAS $382.37 AND NOT COVERED FOR ANY REIMBURSEMENT BY FORD/LINCOLN. CUTTING OFF LIKE THIS IS EXTREMELY DANGEROUS AND PLACES OCCUPANTS AT RISK FOR SERIOUS INJURY. *TR

NHTSA ID
10543368
Incident
Sep 11, 2013
Mileage
49,000 mi
Driver assistance
Filed Aug 26, 2013

TL* THE CONTACT OWNS A 2011 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE WOULD SHAKE VIOLENTLY. THE CONTACT MENTIONED THAT THE MOST RECENT TIME THE FAILURE OCCURRED, THE VEHICLE DECELERATED INDEPENDENTLY AND WITHOUT WARNING. THE VEHICLE WAS TOWED TO THE DEALER. THE TECHNICIAN DIAGNOSED THAT THE THROTTLE BODY WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS 20,000 AND THE CURRENT MILEAGE WAS 58,000.

NHTSA ID
10537364
Incident
Jun 8, 2011
Mileage
20,000 mi
Driver assistanceFuel systemPowertrain (other)
Filed Aug 15, 2013

WHILE DRIVING DOWN THE HIGHWAY, IN MY 2011 MARINER IT SUDDENLY LOST THE POWER TO ACCELERATE (ENGINE STILL RUNNING). THE WRENCH LIGHT ILLUMINATED AT THIS TIME. PRESSING ON THE ACCELERATOR DID NOTHING. FORTUNATELY THERE WAS NOTHING BEHIND ME SO I COASTED ABOUT 1/4 MILE TO THE NEXT TURN OFF AND COASTED OFF THE HIGHWAY. THEN I TURNED THE VEHICLE OFF, WAITED A FEW MINUTES AND RESTARTED IT. I DROVE ABOUT 20 MILES HOME WITH NO OTHER OCCURRENCE. THE NEXT DAY (AUGUST 14, 2013) I DROVE ABOUT 20 MILES TO WORK WITH NO PROBLEMS. THAT AFTERNOON I LEFT WORK AND DROVE ABOUT 2 MILES AT 25 MPH AND IT LOST ALL ACCELERATION POWER AGAIN (MOTOR STILL RUNNING). I TURNED IT OFF AND RESTARTED IT. I DROVE ANOTHER 2 MILES AT 25 MPH AND IT LOST ACCELERATION POWER AGAIN, BUT THIS TIME BOTH THE WRENCH LIGHT AND THE CHECK ENGINE LIGHT CAME ON (ENGINE STILL RUNNING). I THEN DROVE DIRECTLY TO MY FORD/MERCURY DEALER (ABOUT 1 MILE) AND TOLD HIM THE SITUATION. IT IS CURRENTLY IN THEIR SHOP AND I HAVEN'T HEARD BACK FROM THEM YET. THEY GAVE ME A LOANER VEHICLE TO DRIVE WHILE THEY CHECK OUT MY MARINER. -- EXTREMELY SCARY SITUATION! IF THIS HAPPENS TO ME ON AN INTERSTATE IN A CENTER LANE WITH HEAVY TRAFFIC WILL BE LIFE THREATENING. I DON'T WANT TO BE AFRAID DRIVING MY VEHICLE AND THINK A RECALL SHOULD BE DONE ASAP!! TODAY I HAVE READ OTHER SIMILAR SITUATIONS PEOPLE HAVE EXPERIENCED WITH MARINERS AND ESCAPES. PLEASE CHECK INTO THIS ASAP BEFORE THERE IS A TRAGEDY IF THERE HASN'T ALREADY BEEN ONE GONE UNREPORTED!!! THANK YOU!! *TR

NHTSA ID
10535515
Incident
Aug 13, 2013
Mileage
45,500 mi
Driver assistanceEngineFuel system
Filed Jul 29, 2013

AS I WAS DRIVING MY 2011 MERCURY MARINER IT SUDDENLY LOST THE POWER TO ACCELERATE (ENGINE STILL RUNNING). THE WRENCH LIGHT ILLUMINATES AT THIS TIME. I COULD NOT DO ANYTHING TO INCREASE SPEED (PRESSING ON THE ACCELERATOR DID NOTHING). THE ONLY FIX IS TO SHUT DOWN THE ENGINE AND RE-START. THE MILEAGE IS 69,XXX. THIS FIRST OCCURRENCE HAPPENED ON 7/25/2013, HOWEVER, THE SAME SYMPTOMS HAVE OCCURRED RANDOMLY SEVERAL TIMES SINCE THAT TIME. I EXPLAINED THE SYMPTOMS TO MY LOCAL FORD DEALER SERVICE DEPARTMENT AND INDICATIONS ARE A DEFECTIVE THROTTLE BODY. *TR

NHTSA ID
10532353
Incident
Jul 25, 2013
Mileage
69,000 mi
Driver assistanceFuel system
Filed Jul 17, 2013

I WAS ON ONRAMP, VEHICLE SLOWED DOWN, WRENCH LIGHT LIT UP ON DASHBOARD. VEHICLE WOULD NOT ACCELERATE. I PULLED TO THE SIDE OF THE HIGHWAY AND RESTARTED VEHICLE. VEHICLE CONTINUED TO DO THIS FOR THE DURATION OF OUR TRIP. *TR

NHTSA ID
10525503
Incident
Jul 14, 2013
Mileage
40,876 mi
Driver assistance
Filed Jul 17, 2013

TL* THE CONTACT OWNS A 2011 MERCURY MARINER. THE CONTACT STATED THAT WHILE EXITING THE HIGHWAY RAMP AT APPROXIMATELY 30 MPH, THE VEHICLE LOST ACCELERATION THEN THE MIL AND CHECK ENGINE WARNING LIGHTS ILLUMINATED. THE CONTACT PERFORMED A DIAGNOSTIC WHICH LOCATED THE FAILURE AT THE THROTTLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 41,926.

NHTSA ID
10525290
Incident
Jul 17, 2013
Mileage
41,926 mi
Driver assistancePowertrain (other)
Filed Jul 9, 2013

HTTP://WWW.AUTOBLOG.COM/2013/02/25/NHTSA-INVESTIGATING-725K-FORD-MERCURY-VEHICLES-FOR-STALLING-ISS/ - READ COMMENTS ON THIS SITE. EXACTLY WHAT OUR MARINER IS DOING. 60 TO ZERO IN 2 SECONDS. YELLOW WRENCH LIGHT COMES ON, VEHICLE NO LONGER ACCELERATES, PULLOVER, TURN OFF, RESTART. HAS HAPPENED 3 TIMES. *TR

NHTSA ID
10524019
Incident
Jul 4, 2013
Mileage
47,000 mi
Driver assistance
Filed Jul 1, 2013

DEFECTIVE THROTTLE BODY. *TR

NHTSA ID
10522703
Incident
Jun 27, 2011
Mileage
43,000 mi
Driver assistanceElectricalPowertrain (other)
Filed Jun 22, 2013

VEHICLE TRAVELING AT 70 MPH ON INTERSTATE ENGINE QUIT AND LOSS OF STEERING AND CONTROL. PULLED OVER RE STARTED HAPPENED AGAIN. AND ENGINE LIGHT WENT ON. RE STARTED DROVE TO DEALER LATER AND DISCOVERED AFTER $100.00 DIAGNOSTIC THAT THE THROTTLE BODY WAS NOT WORKING PROPERLY . HAPPENED WHEN MILEAGE WAS BETWEEN 38-39000. THEY WANTED ME TO PAY OVER $590.00 TO REPLACE THEIR DEFECTIVE PART AT FORD DEALERSHIP THEY REFUSED TO PUT IT UNDER ANY WARRANTY OR RECALL . I DID NOT HAVE IT FIXED. IT IS A DANGER TO ALLOW THIS MATTER NOT TO BE RECALLED AS IT HAS HAPPENED THOUSANDS OF TIMES IN MANY FORD VEHICLES. *TR

NHTSA ID
10521231
Incident
Jun 7, 2013
Mileage
38,000 mi
Driver assistance
Filed Apr 23, 2013

TL* THE CONTACT OWNS A 2011 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 30 MPH, THE RPMS INCREASED AS THE VEHICLE INDEPENDENTLY DECELERATED. THE CONTACT SHUT THE ENGINE OFF AND RESTARTED THE VEHICLE. THE FAILURE CONTINUED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS. THE TECHNICIAN STATED THE THROTTLE BODY WOULD HAVE TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 37,755. *TR

NHTSA ID
10509275
Incident
Feb 23, 2013
Mileage
37,755 mi
Driver assistanceFuel system
Filed Feb 25, 2013

TL* THE CONTACT OWNS A 2011 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE WOULD STALL WITHOUT WARNING. THE VEHICLE WOULD SPORADICALLY HESITATE WHEN ACCELERATING WITH THE IMMEDIATE ILLUMINATION OF THE TRANSMISSION WARNING LIGHT. THE VEHICLE WAS LATER TOWED TO THE DEALER WHERE THE CONTACT WAS ADVISED THAT FUEL EMISSION AND THE THROTTLE BODY WOULD REQUIRE REPROGRAMMING. THE VEHICLE WAS REPAIRER HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS CONTACTED AND OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS APPROXIMATELY 18,000. THE CURRENT MILEAGE WAS APPROXIMATELY 40,000.

NHTSA ID
10499923
Incident
Jan 1, 2011
Mileage
18,000 mi

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.

Other components reported on this vehicle

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Elsewhere on this vehicle

Data sources

Data on this page last refreshed .