10.0

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
28,667 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

Get notified about new defects, investigations, recalls & lawsuits for the 2003 Mercury Grand Marquis:

Unsubscribe any time. We don't sell/share your email.

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