There are 6 owner-reported visibility & wipers complaints for the 2004 Mercury Mountaineerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
I TOOK MY CHILDREN TO DAYCARE CAME HOME AND PARKED IN THE DRIVEWAY. I CAME BACK OUT TWO MINUTES LATER AND THERE IS GLASS ALL OVER. THE BACK HATCH WINDOW EXPLODED, IT LOOKS LIKE IT GOT REALLY HOT AS SOME OF THE PLASTIC TRIM IS MELTED. *TR
REAR GLASS TAIL GATE HATCH HINGE - THE HINGE PIN WAS COMING OUT THROUGH THE POT METAL CASTING. EVERY TIME I OPENED IT WORE A BIT MORE. HINGE WAS TWISTED - GLASS HUNG DOWN OUT OF POSITION. I WAS AFRAID IT WOULD FAIL ON THE ROAD AND INJURE A CAR BEHIND ME. I BOUGHT A NEW DEALER HINGE AND INSTALLED IT MYSELF. PARTS AND SERVICE PEOPLE AT DEALER NEGLECTED TO TELL ME TO DISCONNECT THE GAS CYLINDERS. WITH TAILGATE CLOSED GAS CYLINDERS ARE NOT VISIBLE. I REMOVED THE BAD HINGE IN PREPARATION TO INSTALL NEW. IT WAS A WRESTLING MATCH AS THE CYLINDER WAS TRYING TO FORCE THE GLASS OUT AND DOWN WHICH TWISTED THE OTHER HINGE. NOW THAT OTHER HINGES PIN IS BREAKING THROUGH THE POT METAL. IT TOOK TWO OF US TO WRESTLE THE CYLINDER AND GET THE NEW HINGE IN PLACE. TO BE SAFE I'M JUST NOT GOING TO USE THE HATCH. *TR
TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE CONTACT STATED THAT WHILE DRIVING, THERE WAS A POPPING NOISE FROM THE REAR OF THE VEHICLE. UPON INSPECTION, IT WAS DISCOVERED THAT THE REAR LIFT GATE WINDOW HAD SUDDENLY SHATTERED. THE CONTACT INDICATED THAT WINDOW WAS REPLACED BUT THE FAILURE REOCCURRED. AFTER REPLACING THE WINDOW A SECOND TIME THE CONTACT RECENTLY DISCOVERED THAT THE WINDOW PANEL AND GLASS HAD CRACK. THE CAUSE OF THE FAILURES WERE NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 80,000.
REAR GLASS HINGE FAILURE ON 2004 MERCURY MOUNTAINEER. HINGE PIN FAILED ON MY REAR GLASS HINGE. *TR
I OWN A 2004 MERCURY MOUNTAINEER. THE HINGES HOLDING THE REAR WINSDHIELD IN PLACE BROKE AND MY WINDSHIELD FELL OUT. I UNDERSTAND THERE WAS A RECALL ON THE FORD EXPLORER FOR THE SAME ISSUE BUT NOT FOR THE MERCURY MOUNTAINEER. SINCE THERE ARE NO RECALLS FOR MY VEHICLE I AM RESPONSIBLE FOR PAYING ON THE REPAIRS AND I FEEL THIS IS A SAFETY RECALL ISSUE. *DT
DT*: THE CONTACT STATED THE HINGES CAME LOSE ON THE BACK WINDOW. THE WINDOW WAS BEING HELD TOGETHER WITH DUCT TAPE. THE DEALERSHIP WAS MADE AWARE.
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 Apr 26, 2026