There are 3 stored owner reports matching the lighting leading-label group for the 2000 Mercury Mountaineer in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)TL* THE CONTACT OWNS A 2000 MERCURY MOUNTAINEER. WHILE DRIVING, THE HEADLIGHTS GRADUALLY BECAME DIM AND SHUT OFF. AFTER THE CONTACT MADE SEVERAL ATTEMPTS, THE HEADLIGHTS TURNED BACK ON AND REMAINED ILLUMINATED. THE MANUFACTURER WAS CONTACTED AND STATED THAT THERE WERE NO RECALLS FOR THE FAILURE. THE CONTACT WAS REFERRED TO NHTSA. THE DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 82,000.
BRAKE LIGHTS WERE NOT LIGHTING. FUSE WAS BLOWN, REPLACED FUSE, STEPPED ON BRAKE PEDAL, THEN POOF OF SMOKE AT FUSE INSIDE, AND UNDER HOOD SMOKE CONTINUED FOR 2 MINUTES. FOUND CONNECTOR FOR SWITCH ON MASTER CYLINDER WAS MELTED AND SWITCH IS STILL BAD. DISCONNECTED CONNECTOR FROM SHORTED SWITCH CAUSING FUSE TO BLOW. THEN REPLACED FUSE AND NOW BRAKE LIGHTS WORK. CRUISE CONTROL WAS INTERMITTENT FOR THE PAST 2 MONTHS PRIOR TO THIS EVENT. CONNECTOR IS TIED TO KEEP IT SECURE UNTIL REPAIR IS MADE. *TR
THE TURN SIGNAL CURVES DOWNWARD AND CONACTS THE DRIVER'S LEFT KNEE TURNING THE RIGHT TURN SIGNAL OFF DUE TO POOR DESIGN OF THE LEVERS. YH
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.