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:
0 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
28,667 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 transmission problems

transmission problem

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2003 Mercury Grand Marquis Owner Comments

problem #3

Apr 052009

Grand Marquis

  • 63,000 miles


Automatic transmission shifts erratically when in cruise mode, less than 70,000 miles on vehicle, has almost caused accident several times. Have to dis-engage cruise control and shut off overdrive to cure it, and keeps occurring although less frequently.

- Saint Johnsbury, VT, USA

problem #2

Jun 232004

Grand Marquis 8-cyl

  • Automatic transmission
  • 21,000 miles
The vehicle's shifter jumped out of park and into reverse. As a resulted the vehicle rolled backwards and was involved in a minor collision.

- Issue, MD, USA

problem #1

May 102003

Grand Marquis 8-cyl

  • 2,000 miles
When the consumer put the gear into reverse on an incline, the vehicle continued to move forward.

- Lynchburg, VA, USA

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