2010 Mercury Grand Marquis Vehicle speed control Problems
- Complaints
- 3about this part
- Share
- 12%of 25 total for the year
- Median mileage
- 56,100miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the vehicle speed control of the 2010 Mercury Grand Marquis, 12% of the 25 complaints for this model year. Where a mileage was given, the median is 56,100 miles. 2 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.
“I was pulling into a parking space and had almost come to a stop when the vehicle suddenly lurched forward & hit a (vacant) store front. I feel the vehicle accel- erated on it's own as I was applying the brake at the time, my foot did not slip off of the brake. The vehicle is equipped with drive by wire or, no cable is attached to the throttle body from the accelerator. The dealer repaired the front end of the vehicle and extensively examined the throttle system. No apparent cause was determined and they told us it may never happen again. …”
NHTSA complaint #10496292, filed 2013-02, 56,100 miles“Yesterday, tuesday 23, 2014, I backed out of a parking spot on the parking deck about 15 feet and put the car in drive. It lurched forward at a tremendous high speed and although I hit the brakes, the auto slammed into the retaining wall at the parking spot I had just backed out of. I was wearing my seat belt and the air bag deployed. I received minor bruising on my arms, legs and ribs due to the air bag deployment. This auto has side air bag as well, but only the drive air bag deployed. I was checked out by a medic, who was staying at the resort and heard the crash. There were no witnesses. …”
NHTSA complaint #10605276, filed 2014-04, 60,000 miles“The contact owns a 2010 Mercury Grand Marquis. While driving approximately 20 MPH the check engine light illuminated on the dashboard. Once the vehicle was stopped it began to shake and lunge forward. The vehicle was taken to an independent mechanic where he was informed that the throttle body needed to be replaced. The vehicle was repaired. The failure and current mileages were 21,680.”
NHTSA complaint #10367280, filed 2010-11, 21,680 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 2010 Mercury Grand Marquis
6 complaintsBody and structure
5 complaintsElectrical system
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 Nov 1, 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