TL* THE CONTACT OWNS A 2009 MERCURY GRAND MARQUIS LS. THE CONTACT STATED THAT THE ACCELERATOR AND BRAKE PEDALS WERE ENTIRELY TOO CLOSE TO EACH OTHER, CAUSING THE CONTACT TO SIMULTANEOUSLY DEPRESS BOTH PEDALS. THE DEALER WAS CONTACTED AND THE CONTACT WAS ADVISED THE BLEED THE BRAKES. THE DEALER ALSO ADVISED THAT THE SPECIFICATIONS OF BOTH PEDALS CONFORMED TO GOVERNMENT REGULATIONS. THE VEHICLE WAS …
2009 Mercury Grand Marquis brakes problems
severe 4 complaints filed with NHTSA · avg repair $450
Complaints
4
Recalls
0
Crashes
1
Avg fix
$450
What owners are reporting 2 most recent
I WAS DRIVING AT 45 MPH AND APPLIED THE BRAKE TO STOP. THE ENGINE REVVED TO 2,000 RPM. I WAS ABLE TO STOP WITH VERY HARD BRAKING USING BOTH FEET. THE ENGINE CONTINUE REVVING AT 2,000 RPM EVEN AFTER THE CAR HAD STOPPED. I PLACED THE TRANSMISSION IN NEUTRAL AND THE ENGINE REVVED EVEN FASTER. THE ENGINE DID NOT SLOW DOWN UNTIL I TURNED OFF THE IGNITION. AFTER LEAVING THE ENGINE OFF FOR AROUND …
Common questions
How serious is the brakes problem on the 2009 Mercury Grand Marquis?
It's a meaningful issue. 4 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $450.
At what mileage does the brakes typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $450 for brakes repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to brakes?
No active recalls currently cover brakes issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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