2005 Mercury Grand Marquis Other or unknown Problems
- Complaints
- 10about this part
- Share
- 2%of 488 total for the year
- Median mileage
- 53,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the other or unknown of the 2005 Mercury Grand Marquis, 2% of the 488 complaints for this model year. Where a mileage was given, the median is 53,000 miles. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“This started out with lights and windshield wipers cutting off and on with no apparent wearing. Also burning smell. Took it in got that fixed. I was informed this had occurred in others same exact thing. Right after that next thing was dash lights for ABS, airbag, and anti skid stay on. I took it to 2 places. Was told it was a module unit by one place the other couldn't find a reason. I have not had it fixed since I couldn't get a clear reason for it, also the car runs fine. The lights must mean something. …”
NHTSA complaint #10693762, filed 2015-03, 51,200 miles“While driving at night the headlights will go out and would not come back on for a few min. Then they will work for a little while and go out again. This is very dangerous when the headlights go out in the dark or during rainstorms.”
NHTSA complaint #10462544, filed 2012-06, 53,000 miles“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, especially because the fire started while the vehicle was in motion. These vehicles must be recalled and removed from use before more people are injured or killed.”
NHTSA complaint #11650045, filed 2025-03“The contact owns a 2005 Mercury Grand Marquis. The contact stated that the vehicle failed to accelerate over 60 MPH. When the vehicle was able to reach speeds more than 60 MPH, the traction control warning light illuminated intermittently. The vehicle was taken to an independent mechanic where the failure was undetermined. The vehicle was not repaired. The VIN was not provided. The manufacturer was not notified of the failure. The approximate failure mileage was 144,000.”
NHTSA complaint #10807466, filed 2015-11, 144,000 miles“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.”
NHTSA complaint #11413400, filed 2021-04Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2010 | 1 | 4% |
| 2008 | 3 | 4% |
| 2007 | 1 | 1% |
| 2006 | 5 | 4% |
| 2005 | 10 | 2% |
| 2004 | 2 | 1% |
| 2003 | 6 | 2% |
| 2002 | 2 | 3% |
| 2001 | 3 | 2% |
| 2000 | 6 | 4% |
| 1999 | 2 | 1% |
| 1998 | 2 | 1% |
| 1997 | 5 | 2% |
| 1996 | 3 | 1% |
| 1995 | 6 | 3% |
| 1994 | 5 | 3% |
| 1992 | 7 | 3% |
| 1991 | 3 | 4% |
| 1990 | 2 | 4% |
| 1984 | 2 | 13% |
Other parts of the 2005 Mercury Grand Marquis
293 complaintsElectrical system
75 complaintsAir bags
67 complaintsVehicle speed control
39 complaintsSeat belts
36 complaintsSteering
20 complaintsBrakes
18 complaintsBody and structure
11 complaintsVisibility (wipers, defrost, mirrors)
11 complaintsEngine cooling
9 complaintsTires
8 complaintsEngine
5 complaints
← All problems reported for the 2005 Mercury Grand Marquis
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology