2010 Mercury Grand Marquis Electrical system Problems
- Complaints
- 3about this part
- Share
- 12%of 25 total for the year
- Median mileage
- 28,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the electrical system of the 2010 Mercury Grand Marquis, 12% of the 25 complaints for this model year. Where a mileage was given, the median is 28,000 miles.
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.
“Splicing on almost all electrical systems had come apart. Affected were the radio, clock, windows, power seats, lights, door locks, trunk release inside car, low tire monitor warning light stayed on constantly, seat belt warning light stayed on, warning bell for key in ignition stayed on except when car was moving, dome light would not go off whenever you got out of car. Some of these problems were constant and some were intermittent. As a result of the locking problem, our vehicle was stolen, but thankfully found with no damage. …”
NHTSA complaint #10627951, filed 2014-08, 28,000 miles“The contact owns a 2010 Mercury Grand Marquis. The contact stated that the air conditioning unit failed and would only emit air from the defroster and under seat vents. The contact also stated that the trunk light illuminated even though the trunk was closed. The vehicle was taken to the dealer for inspection where they stated that the air conditioner and trunk latch needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 63,000. Updated 09/05/13”
NHTSA complaint #10532332, filed 2013-07, 63,000 miles“The contact owns a 2010 Mercury Grand Marquis. The contact stated that the air conditioning system failed. The air conditioning would erroneously blow through the defrost system. The vehicle was taken to the mechanic for inspection where the failure was located at the temperature control unit. The contact also stated that the temperature control unit was replaced twice prior to the recent failure. The manufacturer advised that they were aware of the failure and that the temperature control unit was on back order. The vehicle was not repaired. …”
NHTSA complaint #10535156, filed 2013-08, 9,000 milesRelated service bulletins
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Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2011 | 3 | 33% |
| 2010 | 3 | 12% |
| 2009 | 4 | 15% |
| 2008 | 9 | 11% |
| 2007 | 1 | 1% |
| 2006 | 8 | 6% |
| 2005 | 75 | 15% |
| 2004 | 40 | 11% |
| 2003 | 51 | 14% |
| 2002 | 10 | 13% |
| 2001 | 13 | 8% |
| 2000 | 17 | 10% |
| 1999 | 15 | 9% |
| 1998 | 15 | 10% |
| 1997 | 12 | 4% |
| 1996 | 16 | 7% |
| 1995 | 20 | 11% |
| 1994 | 10 | 6% |
| 1993 | 20 | 14% |
| 1992 | 41 | 16% |
| 1991 | 21 | 26% |
| 1990 | 13 | 23% |
| 1989 | 16 | 28% |
| 1988 | 36 | 49% |
| 1987 | 19 | 44% |
| 1986 | 11 | 52% |
| 1985 | 11 | 52% |
| 1984 | 5 | 33% |
| 1983 | 2 | 29% |
Other parts of the 2010 Mercury Grand Marquis
6 complaintsBody and structure
5 complaintsVehicle speed control
3 complaintsAir bags
2 complaintsBrakes
2 complaintsEquipment
2 complaintsExterior lighting
2 complaintsTransmission and drivetrain
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsEngine
1 complaintsEngine cooling
1 complaintsFuel system
1 complaints
← All problems reported for the 2010 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