There are 4 owner-reported air bags & restraints complaints for the 2009 Mercury Marinerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
WE PURCHASED A VEHICLE FROM A FAMILY MEMBER THAT THEY HAD PURCHASED FROM AUTO SOURCE IN WOODS CROSS, UTAH (WHO SPECIALIZES IN REBUILDING TOTALLED VEHICLES). WE RECENTLY TOOK THE VEHICLE IN FOR WORK TO BE DONE ON IT, AND THE REPAIR SHOP SAID THAT THE SEAT BELT TENSIONER HAD NOT BEEN REPLACED IN THE VEHICLE, AND THE AIR BAG SYSTEM HAD BEEN RIGGED TO NOT TRIGGER THE AIRBAG LIGHT TO COME ON AND THAT THE MODULE ON IT WAS BAD, WHICH MAY CAUSE THE AIRBAGS TO POSSIBLY NOT DEPLOY. THEY LET ME KNOW THAT IT IS ILLEGAL FOR EITHER OF THESE THINGS TO BE TAMPERED WITH. I KNOW THAT MY BROTHER-IN-LAW DID NOT TAMPER WITH EITHER OF THESE 2 ITEMS. IT SEEMS THAT THIS COMPANY IS TAKING SHORTCUTS WITH SAFETY ITEMS THAT THEY HAVE NO BUSINESS TAMPERING WITH AND THEN RE-SELLING THEM TO THE PUBLIC. I ASKED THEM TO WORK WITH US TO FIX THE ISSUE AND THEY ARE COMPLETELY UNWILLING TO EVEN CORRECT THE ISSUE. THE VEHICLE AIRBAG LIGHTS RANDOMLY GO ON AND OFF (STATIONARY AND IN MOTION) AS WE HAVE NOT BEEN ABLE TO REPLACE THE MODULE YET. WE HAD NO IDEA THE SEATBELT TENSIONER WAS EVEN MISSING.
TL* THE CONTACT OWNS A 2009 MERCURY MARINER. WHILE THE CONTACT WAS DRIVING APPROXIMATELY 25 MPH, AN OPPOSING VEHICLE UNEXPECTEDLY DROVE INTO HER LANE CAUSING A HEAD ON CRASH. THE CONTACT SUFFERED A PINCH NERVE IN THE NECK AREA AND BODY BRUISES FROM THE SEAT BELT. THE AIR BAGS FAILED TO DEPLOY WITH THE SUBSTANTIAL IMPACT. THE VEHICLE SUSTAINED SEVERE FRONT END DAMAGE AND WAS TOWED TO AN IMPOUND FACILITY TEMPORARILY. THE MANUFACTURER WAS NOTIFIED OF THE DEFECT. THE APPROXIMATE FAILURE MILEAGE WAS 39,000. THE VIN WAS UNAVAILABLE.
TL*THE CONTACT OWNS A 2009 MERCURY MARINER PREMIER. THE CONTACT STATED THAT THE PASSENGER AIR BAG ILLUMINATED WHILE HE WAS DRIVING. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER SEVERAL TIMES. THE DEALER REMOVED THE PASSENGER SEAT AND REPLACED THE AIR BAG SENSOR. THE FAILURE CONTINUED. THE CONTACT CALLED THE MANUFACTURER WHO OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS 16,804 AND THE CURRENT MILEAGE WAS APPROXIMATELY 21,000.
AIR BAG ON THE PASSENGER SIDE TURNS OFF AND ON WHEN DAUGHTER AGE 34 WEIGHT 120 SETS IN THE SEAT. DEALERS AGREES THAT IT IS NOT WORKING. MERCURY DEALER AND FORD WAS UNABLE TO FIX THE PROBLEM AND STATE THAT THIS IS NORMAL AND ANY FURTHER INVESTIGATION WOULD BE AT MY COST. THIS HAS BEEN A PROBLEM SINCE PURCHASE, CAR NOW HAS 8000 MILES AND HAS BEEN AT THE DEALER FOR A TOTAL OF 16 DAYS. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on May 4, 2026