2005 Mercury Grand Marquis electrical system problems
75 owner complaints filed with NHTSA name the electrical system on the 2005 Mercury Grand Marquis — 15% 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
“Neither the air conditioner nor the cruise has worked since 46,000 miles. It needs a new air compressor which would cost over $1,000 and there are several other complaints for this issue plastered all over the internet.”
filed Apr 22, 2021
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- ON CERTAIN PASSENGER VEHICLES, THE BATTERY CABLE INCLUDES A FUSIBLE LINK THAT MAY CONTACT…Campaign 05V518000 · Nov 9, 2005
Related service bulletins
Summary to be provided on a future date.
ASI-45182 · Service Bulletin/Repair Instructions · issued Jun 1, 2015
Electrical System problems in other Grand Marquis years
| Year | Reports | Share |
|---|---|---|
| 2010 Grand Marquis | 3 | 13% |
| 2009 Grand Marquis | 4 | 15% |
| 2008 Grand Marquis | 9 | 12% |
| 2007 Grand Marquis | 1 | 1% |
| 2006 Grand Marquis | 8 | 6% |
| 2004 Grand Marquis | 40 | 12% |
| 2003 Grand Marquis | 51 | 14% |
| 2002 Grand Marquis | 10 | 13% |
| 2001 Grand Marquis | 13 | 8% |
| 2000 Grand Marquis | 17 | 10% |
| 1999 Grand Marquis | 15 | 9% |
| 1998 Grand Marquis | 15 | 10% |
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.