Most common 2006 Mercury Grand Marquis problems
Share of the 143 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercury Grand Marquis complaints by model year
Best Grand Marquis years: 2011, 2010, 2009. Years to avoid: 2005, 1997, 1996, 2003. Compare all years →
2006 Mercury Grand Marquis recalls (2)
Steering › Rack and pinion › Pinion shaft
Ford Motor Company (Ford) is recalling certain model year 2005-2011 Ford Crown Victoria, 2005-2011 Mercury Grand Marquis vehicles manufactured March 23, 2004, to August 30, 2011, and 2005-2011 Lincoln Town Car vehicles manufactured March 8, 2004, to August 30, 2011, and on which the upper intermediate shaft was serviced during…
Remedy: Ford will notify the owners of vehicles whose repair records reflect that the upper intermediate steering shaft was repaired during the course of the prior recall 13V-385.
Steering
Ford is recalling certain model year 2005-2011 Ford Crown Victoria (including Crown Victoria Police Interceptors), Mercury Grand Marquis, and Lincoln Town Car vehicles. The affected vehicles are currently registered or were originally sold in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky,…
Remedy: Ford will notify owners and dealers will replace the lower intermediate shaft, free of charge. The upper intermediate shaft and steering column lower bearing will be inspected to identify any damage that may have…
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2006 Mercury Grand Marquis:
Steering Column Shaft Obstruction
On July 7, 2014 the Office of Defects Investigation (ODI) opened a preliminary evaluation based on five complaints (VOQs) alleging incidents ofinterference between dislodged exhaust manifold heat shields and the lower steering shaft/knuckle, including one alleging the interference resulted in a crash on a highway entrance ramp.
What 2006 Mercury Grand Marquis owners say
Speed control & acceleration all 37 →
Tl* 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.
Tl* the contact owns a 2006 Mercury Grand Marquis. While driving into a parking space at approximately 5 MPH, the brake pedal was depressed and the vehicle unintendedly accelerated and crashed into the side of a concrete building. There were no injuries and a police report was filed. The vehicle was towed to an independent mechanic where the front end damages were repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 45,800.
Air bags all 37 →
5/9/2021 The SRS dashboard light came on with a bell warning. Bell quits after a short time but the light stays on solid. When turning ignition on, light and bell comes on, blinks 3 times, does this 6 times and then stays on solid. When driving hear bell for 5 times, this repeats later for a total of 5 times. After turning the ignition switch on/off I hear a sound from under the driver or passenger seat. The passenger side air bag light does light. I bought this car new.
Tl* 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.
Seat belts all 22 →
Around 12 years ago, when my 2006 Marquis, which I purchased brand new, had only approximately 40,000 miles on it, the seatbelt-airbag system warning appeared on the instrument panel and a warning bell sound went off with a 3 beep then 2 beeps/ring tone that would sound whenever the vehicle was started for the next two minutes of driving. It would then stop but the yellow warning icon stays on. On a trip, while driving, it will do this every hour or so or 60 miles of driving, and has done this ever since. (I'm retired and drive very little, my vehicle as of today (5-13-2022) has only 54,462 actual miles on it.) I did some research when it first occurred and learned that the 3 - 2 beeps is a "code 32, seat belt pre-tensioner failure warning and will need immediate service and replacement." So I then called Ford and explained it as above. …
In feb, 2014, I originally had a minor crash when another driver was cited for reckless driving. His insurance paid for my damage. No airbags were deployed on either me, the driver, or my mother, the passenger. We were belted in. Recently, on September 7th, 2015, the airbag warning light and chimes came on when I started the vehicle. The light continues to come on, the chime rings in 3 sets of 5 periodically. The dealer that fixed the original damage, alan jay, ran a $55 diagnostic and stated the passenger seat belt pretensioner was open, and that this could have only occurred in an accident. I asked why the system did not respond the 1 1/2 years earlier when the accident occurred? …
2006 Mercury Grand Marquis engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.6L 8-cyl | 4-speed automatic | RWD | 15 / 23 / 18 |
EPA ratings. Class: Large car.
Frequently asked questions
Is the 2006 Mercury Grand Marquis a good car?
Based on 143 owner complaints filed with NHTSA, the 2006 Grand Marquis rates average: 21% fewer complaints than a typical year of the Grand Marquis at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2006 Mercury Grand Marquis?
The speed control & acceleration — 37 complaints, 26% of all complaints for this model year, most often about accelerator pedal. Next are the air bags (37) and seat belts (22).
How many recalls does the 2006 Mercury Grand Marquis have?
There are 2 recalls for the 2006 Mercury Grand Marquis, the most recent from November 5, 2014 (pinion shaft). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Mercury Grand Marquis?
The best years by complaints, compared at the same age, are 2011, 2010 and 2009. Years to avoid or approach with caution: 2005, 1997, 1996 and 2003. See the full Mercury Grand Marquis years comparison.
At what mileage do 2006 Mercury Grand Marquis problems happen?
The median mileage reported in complaints is about 64,000 miles; 36% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.