There are 1 owner-reported suspension complaints for the 2007 Mercury Grand Marquisin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* - THE CONTACT STATED THAT WHILE DRIVING HER 2007 MERCURY GRAND MARQUIS (FAILURE MILEAGE: 1200) AT 70 MPH THE VEHICLE BEGAN TO VIBRATE UNCONTROLLABLY FOR APPROXIMATELY TEN (10) MINUTES. THE VEHICLE HAD VIBRATED ON ANOTHER OCCASION, BUT NOT AS VIOLENTLY. THE VEHICLE WAS TAKEN TO THE DEALER, BUT THE VIBRATION COULD NOT BE DIAGNOSED. *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.
Data synced from NHTSA on Apr 26, 2026