There are 3 stored owner reports matching the lighting leading-label group for the 2008 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 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)The contact owns a 2008 Mercury Grand Marquis. The contact stated that the wiring harness for the brake pedal sensor was faulty, causing the exterior brake lights to fail to illuminate. The failure almost caused a collision. The dealer was made aware of the failure and informed the contact to bring the vehicle in to be diagnosed. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 80,000.
TL* THE CONTACT OWNS A 2008 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS AT NIGHT, THE HEADLIGHTS INTERMITTENTLY FAILED TO OPERATE WITHOUT WARNING. THE CONTACT ALSO STATED THAT THE INSTRUMENT PANEL WENT BLANK WHILE EXPERIENCING THE FAILURE. THE CONTACT STATED THAT THE HEADLIGHTS RESUMED NORMAL OPERATION A FEW MINUTES AFTER FAILURE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND INFORMED THE CONTACT THAT THE VIN WAS NOT UNDER RECALL. THE MANUFACTURER REFERRED THE CONTACT TO A LOCAL DEALER TO HAVE THE VEHICLE INSPECTED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 72,000.
2003 MERCURY GRAND MARQUIS. CONSUMER WRITES IN REGARDS TO HEADLIGHT ELECTRONIC MODULE RECALL REPAIRS. *SMD THE CONSUMER STATED THE MODULE WAS REPLACED ON NOVEMBER 13, 2014 PRIOR TO RECEIVING NOTIFICATION. THE CONSUMER CALLED FORD TO REQUEST REIMBURSEMENT. HOWEVER, SHE WAS INFORMED THE TIME FRAME FOR REIMBURSEMENT HAD EXPIRED. *JB
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.