There are 1 owner-reported fuel system complaints for the 2011 Mercury Grand Marquisin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
DRIVING ON FREEWAY WITH DASH DISPLAY INDICATING 60 MILES REMAINING ON FUEL SUPPLY WHEN CAR RAN OUT OF FUEL. TANK TOTALLY EMPTY DASH DISPLAY STILL INDICATED 60 MILES BEFORE EMPTY. FUEL GAGE HAS BEEN REGULARLY DECEITFUL. *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 Apr 26, 2026