There are 2 stored owner reports matching the speed control & cruise leading-label group for the 2010 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 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)YESTERDAY, TUESDAY 23, 2014, I BACKED OUT OF A PARKING SPOT ON THE PARKING DECK ABOUT 15 FEET AND PUT THE CAR IN DRIVE. IT LURCHED FORWARD AT A TREMENDOUS HIGH SPEED AND ALTHOUGH I HIT THE BRAKES, THE AUTO SLAMMED INTO THE RETAINING WALL AT THE PARKING SPOT I HAD JUST BACKED OUT OF. I WAS WEARING MY SEAT BELT AND THE AIR BAG DEPLOYED. I RECEIVED MINOR BRUISING ON MY ARMS, LEGS AND RIBS DUE TO THE AIR BAG DEPLOYMENT. THIS AUTO HAS SIDE AIR BAG AS WELL, BUT ONLY THE DRIVE AIR BAG DEPLOYED. I WAS CHECKED OUT BY A MEDIC, WHO WAS STAYING AT THE RESORT AND HEARD THE CRASH. THERE WERE NO WITNESSES. EMS ARRIVED AND CHECKED ME OVER. A POLICE REPORT WAS FILED. ..UPDATED 06/26/14 *BF
TL*THE CONTACT OWNS A 2010 MERCURY GRAND MARQUIS. WHILE DRIVING APPROXIMATELY 20 MPH THE CHECK ENGINE LIGHT ILLUMINATED ON THE DASHBOARD. ONCE THE VEHICLE WAS STOPPED IT BEGAN TO SHAKE AND LUNGE FORWARD. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE HE WAS INFORMED THAT THE THROTTLE BODY NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 21,680.
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.