Problems · NHTSA complaints

2005 Mercury Mariner problems

Owners filed 67 complaints about the 2005 Mercury Mariner with NHTSA between Aug 2005 and Dec 2021. The most-cited component is power train (15).

Complaints
67
Filed with NHTSA
Crashes
7
Reported by owners
Fires
0
Reported by owners
Injuries
17
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Power train15
  2. Electrical system10
  3. Vehicle speed control9
  4. Air bags8
  5. Engine8
  6. Engine and engine cooling8
  7. Visibility6
  8. Tires5
  9. Structure3
  10. Fuel/propulsion system3
  11. Fuel system, gasoline3
  12. Suspension3
  13. Exterior lighting2
  14. Service brakes2

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
20053
20066
200711
20086
20094
20105
20114
20122
20132
20144
20158
20164
20174
20181
20192
20200
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

Power train

15 reports1 crash1 related recall
“ON THE FREEWAY AND CAR SUDDENLY HAS OVERDRIVE LIGHT BLINKING, AT THE SAME TIME I BEGAN LOSING POWER, I WAS ABLE TO GET OFF FREEWAY BUT NOT AFTER I OPEN HOOD AND NEARLY GOT RUN OVER. I WAS CHECKING TO SEE IF THERE WAS OVERHEATING OR SMOKE. BUT NOTHING. I HAVE ALREADY REPLACED PCM, TRANSMISSION, AND TORQUE CONVERTER. CONSEQUENTLY MY SHIFTER IS BROKEN AND YOU CAN SEE DOWN INTO TRANSMISSION. OBVIOUSLY NO I CAN'T DRIVE, I WILL HAVE TO HAVE VEHICLE TOWED. WHY HASN'T TRANSMISSION BEEN RECALLED ON THIS VEHICLE. I COULD NOT THINK ABOUT IF MY CHILD WOULD HAVE BEEN WITH ME AND STOOD IN FRONT OF CAR. HE NEVER WOULD HAVE BEEN ABLE TO MOVE THAT QUICKLY OR EVEN WORSE WITH FREEWAY DRIVING I EVEN COULD HAVE BEEN HIT FROM BEHIND.”
Owner complaint to NHTSAFiled May 11, 2017Power train, Vehicle speed controlCrash reportedODI 10984959

Electrical system

10 reports
“TL* THE CONTACT OWNS A 2005 MERCURY MARINER. WHILE DRIVING 60 MPH, THE VEHICLE STALLED AND THE ANTI-THEFT SYSTEM WARNING INDICATOR ILLUMINATED. THE CONTACT TURNED OFF AND RESTARTED THE ENGINE, BUT THE VEHICLE WOULD JERK WHILE DRIVING. THE VEHICLE WAS DRIVEN TO THE CONTACT'S RESIDENCE. THE DEALER (NORTHTOWNE LINCOLN, 21 NE VIVION RD, KANSAS CITY, MO 64118) AND MANUFACTURER WERE CONTACTED AND STATED THAT THERE WAS NO RECALL ASSOCIATED WITH THE VIN. THE FAILURE MILEAGE WAS 165,250. THE VIN WAS NOT AVAILABLE.”
Owner complaint to NHTSAFiled Apr 24, 2018Electrical system, Electronic stability control (esc)ODI 11089900

Vehicle speed control

9 reports1 crash
“THE GAS PEDAL STUCK WHILE DRIVING, THE CAR WOULD ONLY IDLE AND NOT MOVE. THE CAR WAS IN TRAFFIC AND ALMOST HIT BY ANOTHER VEHICLE. ON A PRIOR DATE THE GAS PEDAL STUCK AND WOULD NOT MOVE, CAR JUST IDLED IN A PARKING LOT FOR ABOUT FIVE MINUTES. THIS WASN'T FIRST TIME IT STUCK, BUT PRIOR TIMES IT ALWAYS RELEASED RIGHT AWAY. *TR”
Owner complaint to NHTSAFiled Feb 13, 2015Vehicle speed control, Fuel/propulsion systemODI 10683358

Air bags

8 reports5 crashes
“TL* THE CONTACT OWNS A 2005 MERCURY MARINER. WHILE THE CONTACT WAS DRIVING 45 MPH, ANOTHER VEHICLE VEERED INTO HIS PATH WITH THE BRIGHT LIGHTS ILLUMINATED. TO AVOID CRASHING INTO THE OTHER VEHICLE, THE CONTACT MOVED OVER INTO THE RIGHT LANE. THE VEHICLE STRUCK A DITCH AND ROLL OVERED FOUR TIMES. THE AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED ARM, NECK, AND BODY INJURIES. HE AND THE PASSENGER WERE TRANSPORTED TO THE HOSPITAL FOR MEDICAL ATTEINTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A TOW YARD. THE VEHICLE WAS NOT TAKEN TO A DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 191,000.”
Owner complaint to NHTSAFiled Oct 24, 2019Air bagsCrash reportedODI 11270694

Engine

8 reports
“CD4E - ENGINE STALLING ON ENGAGEMENT/STOPPING. VEHICLE STALLED AT THE RED LIGHT OF AN EXIT RAMP OFF THE HIGHWAY. VEHICLE STALLED WHEN AT A COMPLETE STOP AND WOULD NOT ENGAGE WHEN PUT INTO DRIVE OR REVERSE.”
Owner complaint to NHTSAFiled Apr 29, 2019EngineODI 11204530

Engine and engine cooling

8 reports
“THE CAR STALLED ON ME TWICE TODAY. THE FIRST TIME IT HAPPENED, I WAS TRAVELING ON GIBSON AT 45 MPH AND MADE A LEFT TURN SUDDENLY CAR STALLED WHILE IN GEAR. I WAS ABLE TO COAST TO THE SHOULDER, HOWEVER I COULD NOT RESTART THE CAR. I CHECKED THE MANUAL AND CAME ACROSS THE FUEL SAFETY CUT OFF SWITCH LOCATED ON THE FRONT PASSENGER SIDE PANEL. I PUSHED THE RESET BUTTON AND WAS ABLE START THE CAR. SECOND TIME, I WAS APPROACHING A TRAFFIC LIGHT THE CAR STALLED ON ME AGAIN. I PUSHED THE RESET BUTTON AGAIN, AND STARTED THE CAR. AT THIS POINT I AM NOT SURE WHAT IS HAPPENING TO MY CAR, AND I DON'T WANT TO BE ON THE FREEWAY AT HIGH SPEEDS WHEN IT SUDDENLY HAPPENS AGAIN. IT APPEARS TO ME THAT THE FUEL FLOW IS BEING SUDDENLY CUT OFF TO THE ENGINE. *TR”
Owner complaint to NHTSAFiled Apr 20, 2015Engine and engine coolingODI 10711837
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.