2009 Mercury Mountaineer Vehicle speed control Problems
- Complaints
- 1about this part
- Share
- 17%of 6 total for the year
- Median mileage
- 47,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the vehicle speed control of the 2009 Mercury Mountaineer, 17% of the 6 complaints for this model year. Where a mileage was given, the median is 47,000 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.
“The contact owns a 2009 Mercury mariner. The contact stated that while driving 60 MPH, the vehicle stalled and the warning lights illuminated. The contact had to shift to park and restart vehicle to resolve the failure. The vehicle was taken to the dealer who determined that the throttle position sensor had failed. The throttle position sensor was replaced. The manufacturer was made aware of the failure. The failure and current mileage was 47,000.”
NHTSA complaint #10511893, filed 2013-05, 47,000 milesVehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2010 | 4 | 31% |
| 2009 | 1 | 17% |
| 2008 | 2 | 2% |
| 2007 | 7 | 9% |
| 2006 | 3 | 3% |
| 2005 | 13 | 16% |
| 2004 | 21 | 10% |
| 2003 | 9 | 6% |
| 2002 | 18 | 5% |
| 2001 | 2 | 9% |
| 2000 | 28 | 23% |
| 1999 | 11 | 7% |
| 1998 | 36 | 15% |
| 1997 | 59 | 18% |
Other parts of the 2009 Mercury Mountaineer
2 complaintsSteering
2 complaintsBrakes
1 complaintsElectrical system
1 complaintsOther or unknown
1 complaints
← All problems reported for the 2009 Mercury Mountaineer
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