2007 Mercury Mariner Hybrid: Reliability Data
When Do Complaints Happen?
Distribution of NHTSA complaints by vehicle mileage at time of report.
What Fails?
Most reported component issues from NHTSA complaints.
Severity Assessment
Sample Complaint Reports
"DRIVING HOME LATE AT NIGHT, FROM BABYSITTING MY GRANDKIDS, WAS HIT IN THE REAR END BY A DRUNK DRIVER (ARRESTED BY THE STATE POLICE), GOING A HIGH RATE OF SPEED. THE DRIVERS SEATBACK BROKE FROM THE IMPACT AND I WAS UNABLE TO MAINTAIN CONTROL. SUV ROLLED 3 TIMES ACROSS THE EXPRESSWAY. SIDE CURTAIN ..."
"ENGINE SHUTS OFF WITHOUT ANY FOREWARNING WHILE VEHICLE IS IN MOTION. DEALER HAS ATTEMPTED TO REPAIR THE PROBLEM 2 TIMES--PROBLEM PERSISTS. THEY SAY IT IS A PROBLEM WITH THE COOLING SYSTEM FOR THE HYBRID BATTERIES. THEY HAVE REPLACED A WIRING HARNESS AND THE MOTOR OF THE COOLING FAN. *TR"
"WHILE I WAS DRIVING MY 2007 MERCURY MARINER HYBRID AT 65 MPH ON A HIGHWAY, THE RED TRIANGLE CAME ON AND THE MESSAGE "STOP SAFELY NOW." THE CAR COMPLETELY AND SUDDENLY LOST ALL POWER. I TRIED TO GIVE IT SOME GAS BUT TO NO AVAIL. I PULLED OVER, SHUT IT OFF FOR A FEW MINUTES, AND THEN WAS ABLE TO RE..."
Source: NHTSA ODI Complaints Database. Names and identifying details omitted.
When Were Complaints Filed?
Number of complaints by the year the issue occurred.
When Does Each Component Fail?
Median mileage at complaint for top components.
Where Are Complaints Coming From?
Top states by complaint count.
Who Files Complaints?
Mercury Mariner Hybrid — Other Years
See how this model compares across different model years.
Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.
Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.
Data through: 2026-03-28
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