Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
9,348 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.

2003 Mercury Grand Marquis engine problems

engine problem

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2003 Mercury Grand Marquis Owner Comments

problem #6

Dec 202006

Grand Marquis 8-cyl

  • Automatic transmission
  • 18,000 miles


- on 12/20/06 while exiting the driveway his 2003 Mercury Grand Marquis rear ended another vehicle. The contact try to apply the break pedal, but couldn't get the vehicle to stop on time because the brake pedal is 4 inches higher than the accelerator pedal. The contact is concern for safety, because he has experience the same incident several of times.

- Woburn, MA, USA

problem #5

Jun 222006

Grand Marquis 8-cyl

  • Automatic transmission
  • 18,091 miles
: on three occasions when the gear was placed into drive the vehicle would lurch forward or when the brakes were applied the same thing would occur causing the tires to screech. The vehicle was taken to dealers who determined that the gas and brake pedals were to close to each other. When depressing one pedal the other pedal was also applied. The dealers also determined that because the pedals were in close proximity it would cause the vehicle to unintentionally accelerate. The dealers contacted the manufacturer who confirmed that there were no recalls on this issue. Updated 7/14/2006 -

- Marion, WI, USA

problem #4

Dec 012004

Grand Marquis

  • Automatic transmission
  • 20,000 miles
Consumer complained about sudden acceleration. Consumer was in a parking lot and put the vehicle in drive. Did not press the accelerator, and vehicle jumped the curb and flattened two tires.consumer had the vehicle towed to a body shop.

- Moss Point, MS, USA

problem #3

Sep 262003

(reported on)

Grand Marquis

  • miles


Consumer stated that due to the proximity of gas and brake pedals, when depressing brake pedal consumer stepped on gas pedal, causing vehicle to accelerate and run into a post.

- Longview, WA, USA

problem #2

Sep 162003

Grand Marquis

  • miles
Brake pedal and gas pedal are too closely located. When stepping on brake pedal consumer can hit the gas pedal at the same time.

- Ocean Pines, MD, USA

problem #1

Feb 172003

Grand Marquis 8-cyl

  • Automatic transmission
  • miles
The accelerator became stuck in the idle position.

- Dorchester, MA, USA

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