2006 Mercury Grand Marquis Vehicle speed control Problems
- Complaints
- 37about this part
- Share
- 26%of 143 total for the year
- Median mileage
- 38,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 37 complaints about the vehicle speed control of the 2006 Mercury Grand Marquis, 26% of the 143 complaints for this model year. Where a mileage was given, the median is 38,000 miles. 8 of these say a crash was involved and 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The vehicle accelerated on it's own while stopped with the brake depressed. Once in a parking lot waiting for a spot to clear.the second time while sitting at a red light. I held the brake down as hard as I could while the car did a burn out and I noticed the traction light come on. It then just went back to normal. This is very dangerous. Someone in front of the car (another driver or pedestrian) can seriously get hurt or killed.”
NHTSA complaint #11316773, filed 2020-03, 106,000 miles“I had an incident of unintended acceleration on my Mercury marquis. I was braking for a stop when the engine suddenly started racing. I put my foot on the brake hard but the car still continued to move slowly until I hit the car in front of me. There was no damage to either vehicle (fortunately) but the car's engine was completely out of control.”
NHTSA complaint #10682440, filed 2015-02, 215,000 miles“Upon readying for stop the vehicle surged forward. I had to put in neutral and wait until the surge discontinued. This has been going on for several months. It has become a incident that happens more often. It is very scary. A had jump happens when I put it back in gear.”
NHTSA complaint #10637999, filed 2014-09, 102,000 miles“On 6/1/14 I was driving south on sr44 in ohio near lake punderson and following a farmer driving a farm tractor.when I got a chance to pass him I accelerated to kick in the passing gear and when I cleared him and left off the throttle it did not respond instead it continued at a high speed for a few seconds before letting off.I thought maybe the throttle got caught on my car mat. I very rarely push the throttle to the floor. …”
NHTSA complaint #10627356, filed 2014-08, 62,800 miles“Stopped at railroad crossing. Train moving. 1 car ahead of me at railroad. Stop. I was completely stopped. After being stopped for about a minute my car suddenly accelerate and slammed into car in front of me pushing car forward in the side of moving train. My car also slammed into train and was reversed and stopped on railroad post. During this time I could not stop vehicle. The vehicle was traveling at considerable speed.”
NHTSA complaint #10551249, filed 2013-11, 52,000 milesVehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2010 | 3 | 12% |
| 2009 | 4 | 15% |
| 2008 | 15 | 19% |
| 2007 | 13 | 14% |
| 2006 | 37 | 26% |
| 2005 | 39 | 8% |
| 2004 | 23 | 7% |
| 2003 | 27 | 7% |
| 2002 | 17 | 22% |
| 2001 | 27 | 17% |
| 2000 | 13 | 8% |
| 1999 | 12 | 7% |
| 1998 | 9 | 6% |
| 1997 | 24 | 8% |
| 1996 | 19 | 8% |
| 1995 | 23 | 13% |
| 1994 | 33 | 21% |
| 1993 | 19 | 13% |
| 1992 | 31 | 12% |
| 1991 | 12 | 15% |
| 1990 | 9 | 16% |
| 1989 | 14 | 24% |
| 1988 | 12 | 16% |
| 1987 | 7 | 16% |
| 1986 | 1 | 5% |
| 1985 | 4 | 19% |
| 1984 | 4 | 27% |
| 1983 | 1 | 14% |
Other parts of the 2006 Mercury Grand Marquis
37 complaintsSeat belts
22 complaintsFuel system
13 complaintsSteering
13 complaintsBrakes
12 complaintsElectrical system
8 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