2005 Mercury Grand Marquis vehicle speed control problems
39 owner complaints filed with NHTSA name the vehicle speed control on the 2005 Mercury Grand Marquis — 8% of all complaints for this model year.
What owners report
“This is a serious safety hazard that could result in death or injury. If I hadn’t escaped in time, I would have been killed. I am urging the NHTSA to investigate this defect and take immediate action to remove these vehicles from the road. Others may not be as lucky. This issue is life-threatening…”
filed Mar 24, 2025
“On [XXX] I was driving this recently purchased Grand marquis . On [XXX] here in San Antonio around ten at night I hit the brakes and something under the hood compartment blew up and it cocked the car . I was trapped inside and when I finally was able to get my seatbelt released I had to break the…”
filed Nov 8, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Vehicle Speed Control problems in other Grand Marquis years
| Year | Reports | Share |
|---|---|---|
| 2010 Grand Marquis | 3 | 13% |
| 2009 Grand Marquis | 4 | 15% |
| 2008 Grand Marquis | 15 | 19% |
| 2007 Grand Marquis | 13 | 14% |
| 2006 Grand Marquis | 37 | 26% |
| 2004 Grand Marquis | 23 | 7% |
| 2003 Grand Marquis | 27 | 7% |
| 2002 Grand Marquis | 17 | 22% |
| 2001 Grand Marquis | 27 | 17% |
| 2000 Grand Marquis | 13 | 8% |
| 1999 Grand Marquis | 12 | 7% |
| 1998 Grand Marquis | 9 | 6% |
Other reported problem areas on the 2005 Mercury Grand Marquis
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.