really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
41,184 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2006 Mercury Grand Marquis brakes problems

brakes problem

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2006 Mercury Grand Marquis Owner Comments

problem #3

Apr 082010

Grand Marquis

  • 38,000 miles


The contact owned a 2006 Mercury Grand Marquis. While driving at an unknown speed with the cruise control activated, the vehicle suddenly accelerated. The rear brakes locked when the failure occurred. The contact was unable to stop the vehicle and crashed into a tree. The air bags failed to deploy. The front seat passenger was injured and received medical attention. The vehicle was destroyed. A police report was filed. The VIN was not available. The failure mileage was 38,000.

- Leesburg, FL, USA

problem #2

Nov 052013

Grand Marquis

  • 55,749 miles
The contact owns a 2006 Mercury Grand Marquis. The contact stated that the vehicle suddendly accelerated and brakes failed intermittently. Also, the contact mentioned that the power steering malfunctioned and as a result, the steering wheel became hard to maneuver whenever attempting to make a turn. The vehicle was taken to an authorized dealer who informed the contact that the vehicle was included in recall NHTSA campaign id number: 13V385000 (steering). The vehicle was repaired under the recall. In addition, the contact mentioned that the vehicle accelerated upon applying both feet to the brake pedal to no avail. The authorized dealer diagnosed and replaced the ball joints, lower control arm, front and back brakes, fuel filter and the stabilizer bar. The failure recurred intermittently with the brakes smoking upon the contact attempting to park the vehicle with both feet on the brakes. The vehicle was taken to an independent mechanic who diagnosed that the throttle assy needed to be replaced. The vehicle was repaired and the failure still recurred with the unintended acceleration and brake failure. The vehicle was to be inspected, diagnosed and repaired. The manufacturer was notified of the failure. The approximate failure mileage was 55,749.

- North Easton, MA, USA

problem #1

Jul 292013

Grand Marquis 8-cyl

  • 29,802 miles
Over the course of several months the engine seemed to rev up while the brakes were applied for a stop. On July 29,2013 I took the car to a reliable service center and asked for an analysis of what the cause could be. Analysis result indicated that the throttle body assembly was the problem. A new assembly was installed, and I was informed that Ford has a bulletin on that particular part on 2006 Grand Marquis. The mechanic felt that a recall should be issued for safety reasons.

- Louisville, KY, USA

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