There are 2 stored owner reports matching the brakes 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)The contact owns a 2010 Mercury Grand Marquis. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed, however, the vehicle failed to stop as intended. The contact stated that he had both feet on the brake pedal, however the vehicle did not stop. The vehicle independently accelerated. The contact stated that the wheels were squealing. The contact stated that the failure occurred while approaching a stop light. The contact's vehicle rear-ended the vehicle in front of his vehicle. The contact's vehicle was damaged to the front bumper. The vehicle was driven to the contact's residence. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 75, 000.
BRAKES: The Dashboard Brake Warning Lights are Illuminated most of the time. 1. The ABS warning Light is illuminated. 2. The Brake Warning Light is illuminated also. The Ford Dealership Service Dept cannot Fix it saying this is intermittent and attributed it to a loose wire connection located behind the Left driver Kick Panel. So far Brakes work irregardless of Brake Warning Lights illumination. You Tube videos offer no solution and clearly state Vehicles with Brake Warning Lights should not be driven. If my state required a Motor Vehicle Inspection, this Car would not pass Inspection. Please Help Resolve this situation.
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.