2007 Mercury Mountaineer Vehicle speed control Problems
- Complaints
- 7about this part
- Share
- 9%of 81 total for the year
- Median mileage
- 39,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the vehicle speed control of the 2007 Mercury Mountaineer, 9% of the 81 complaints for this model year. Where a mileage was given, the median is 39,000 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.
“My 2007 Mercury Mountaineer never had any problems until recently, thought it was the transmission because of the way it drove. Took it to the mechanic and got transmission fluid put in but the problems remained the same and was told the transmission was fine. My thermostat housing unit was leaking (this is very common with these cars and very dangerous, needs immediate attention!) and had caused very expensive wiring issues. …”
NHTSA complaint #11043298, filed 2017-11, 130,000 miles“When braking the vehicle accelerates, when slowing down to a stop sign or a red light and it happens when parking forward or reverse. I recently purchased the vehicle 8/2012. I am very dispointed because I really like this SUV. I hope the dealer will fix this speed control problem free of charge because this situation could get dangerous.”
NHTSA complaint #10485935, filed 2012-11, 97,700 miles“When coming to slow stop, the vehicle will lunge forward before completely stopping. This behavior started several months ago and was very random in the beginning, but has become more and more frequent - almost every time I come to complete stop. Vehicle also hesitates when gas is pressed and then surges forward. That behavior is very random at this stage, but car has done that over the past year. Because of the lunging at stops, I have taken vehicle to repair shop and they indicate the vehicle's computer needs to be updated. This appears to be a common problem with this make/model/year.”
NHTSA complaint #10348886, filed 2010-08, 39,000 miles“The contact owns a 2007 Mercury Mountaineer. While driving 12-14 MPH and attempting to slow down to a stop, the vehicle lunged forward. The contact depressed the brake pedal more firmly to stop the vehicle. The vehicle was taken to a local mechanic who could not duplicate the failure. Once while driving in reverse, the vehicle lunged forward and pinned his son between his vehicle and another. The child sustained arm injuries. No police report was filed. The failure had been occurring since 2008. …”
NHTSA complaint #10381291, filed 2011-02, 50 miles“The contact owns a 2007 Mercury Mountaineer. Immediately after the vehicle was turned on without warning, it accelerated and crashed into a store. The police gave her a ticket for careless driving. The vehicle was towed to an authorized dealer. She was not informed of the repairs that were made to the vehicle. The contact has had problems with the vehicle since she purchased it. Prior to the failure, whenever she engaged the brake pedal the vehicle accelerated without warning; however, the dealer stated that there was nothing wrong with the vehicle. …”
NHTSA complaint #10286494, filed 2009-10, 30,000 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 2007 Mercury Mountaineer
26 complaintsTransmission and drivetrain
25 complaintsElectrical system
16 complaintsOther or unknown
6 complaintsEngine
5 complaintsSteering
5 complaintsBody and structure
5 complaintsEngine cooling
4 complaintsSeat belts
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsWheels
3 complaintsExterior lighting
2 complaints
← All problems reported for the 2007 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