There are 5 stored owner reports matching the lighting leading-label group for the 2006 Mercury Grand Marquis 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 5 of 5 matching reports.
Open the full vehicle complaint log (all categories)LOW BEAM HEADLIGHT RIGHT SIDE DOES NOT WORK.
TL* THE CONTACT OWNS A 2006 MERCURY GRAND MARQUIS. WHILE DRIVING AT UNKNOWN SPEEDS, THE HEADLIGHTS SHUT OFF WITHOUT WARNING. THE CONTACT CALLED THE LOCAL DEALER (BILLY CAIN FORD, 4191 MAYSVILLE RD, COMMERCE, GA 30529, (888) 825-0677) AND WAS INFORMED THAT THE HEADLIGHT MODULE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 196,638. THE VIN WAS NOT AVAILABLE.
TL* THE CONTACT OWNS A 2006 MERCURY GRAND MARQUIS. WHILE DRIVING AT 10 MPH, THE BRAKE LIGHT SWITCH FAILED TO OPERATE. THE CONTACT STATED THAT WHEN THE BRAKE PEDAL WAS DEPRESSED, THE BRAKE LAMP FAILED TO ILLUMINATE. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED. THE CONTACT STATED THAT THE BRAKE LIGHT SWITCH WAS REPLACED TWICE; HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 47,000.
2006 MERCURY GRAND MARQUIS. CONSUMER WRITES IN REGARDS TO VEHICLE HEADLIGHTS. *SMD THE CONSUMER STATED ALL HEAD LIGHTS ON VEHICLES SHOULD BE DESIGNED TO COME ON AUTOMATICALLY, WHEN IT IS RAINING AND NEAR DAWN/DUSK. THE CONSUMER STATED HIS VEHICLE IS DESIGNED WHERE THE HEADLIGHTS COME ON AUTOMATICALLY. *JB
EXTERIOR LIGHT ON DRIVER'S SIDE STOPPED WORKING. I NOTICED WHEN I PULLED INTO MY GARAGE THAT THE LIGHT WAS NOT WORKING. THE ONLY WAY I COULD CONTINUE TO DRIVE THE CAR IS WHEN I USED THE HIGH BEAMS. NOW, AS OF LAST NIGHT (MARCH 27, 2013), THE DRIVER'S SIDE HIGH BEAM IS NOT WORKING AT ALL. I HAVE TAKEN THE CAR TO THE REPAIR SHOP AND TOLD THE LIGHTING MODULE NEEDS TO BE REPLACED AND THAT IT WOULD COST APPROXIMATELY $700 TO FIX. I NEED THE LIGHTS TO WORK, SO I AM HAVING IT REPAIRED. *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.
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.