2006 Mercury Grand Marquis Electrical system Problems
- Complaints
- 8about this part
- Share
- 6%of 143 total for the year
- Median mileage
- 66,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the electrical system of the 2006 Mercury Grand Marquis, 6% of the 143 complaints for this model year. Where a mileage was given, the median is 66,000 miles. 1 of these say a crash was involved, 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.
“Digital speedometer unreadable in daylight driving after working perfectly for 7 months dealer replaced headlamp switch and dashboard cluster assembly still not fixed after 4 months.”
NHTSA complaint #10192108, filed 2007-05, 5,000 miles“The contact owns a 2006 Mercury Grand Marquis. The contact stated that the automatic door lock feature was inoperable. Additionally, the driver's door failed to unlock while using the key fob. The contact was able to lock and unlock the other doors with the key fob. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer was informed of the failure. The approximate failure mileage was 19,000.”
NHTSA complaint #11279874, filed 2019-11, 19,000 miles“The contact owns a 2006 Mercury Grand Marquis. While driving approximately 65 MPH, both headlights stopped working. The contact had to maneuver to the side of the road. The contact mentioned that the high beam bar had to be held backwards in order for the head lights to work. The vehicle was not taken to a dealer or independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 89,200.”
NHTSA complaint #10715680, filed 2015-05, 89,200 miles“The contact owns a 2006 Mercury Grand Marquis. The contact stated that the A/C and heating system were not working properly. The controls had been extremely hot. The vehicle was diagnosed and repaired by an authorized dealer. The failure recurred. The contact was not sure of the specific parts that had been replaced or repaired. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 80,000.”
NHTSA complaint #10604572, filed 2014-06, 80,000 miles“The contact owns a 2006 Mercury Grand Marquis. The contact stated that all of the electrical components failed while traveling at unknown speeds. The contact had to crash into a guardrail in order to come to a stop. A police report was filed and no injuries were reported. The vehicle was taken to a dealer where the technician was unable to duplicate the failure twice before the failure. The manufacturer was made aware of the failure. The current and failure mileage was 50,000. Updated 10/02/14 updated 3/3/15”
NHTSA complaint #10596626, filed 2014-06, 50,000 milesRelated service bulletins
- 10166447Sep 18, 2019This SKU is a Radiator Fan. The customer communication requested return of unsold inventory to inspect the electrical connections. An electrical connection issue may lead to the…
- 10016803Nov 14, 2005High effort to activate horn - vehicles built before 5/6/2005. *tt oasis.
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 2006 Mercury Grand Marquis
37 complaintsVehicle speed control
37 complaintsSeat belts
22 complaintsFuel system
13 complaintsSteering
13 complaintsBrakes
12 complaintsEngine
8 complaintsBody and structure
8 complaintsExterior lighting
6 complaintsOther or unknown
5 complaintsTransmission and drivetrain
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaints
← All problems reported for the 2006 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