10.0

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

A D V E R T I S E M E N T S

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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