2003 Mercury Mountaineer Vehicle speed control Problems
- Complaints
- 9about this part
- Share
- 6%of 152 total for the year
- Median mileage
- 93,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the vehicle speed control of the 2003 Mercury Mountaineer, 6% of the 152 complaints for this model year. Where a mileage was given, the median is 93,000 miles. 2 a fire, 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.
“Driving on highway and tried to stop for red light. Cruise control had been on but when brakes were pressed vehicle was not slowing down. As I got closer to the stopped cars I put transmission into neutral and rpms went way up. I pulled over and shut off. Had car towed and repaired. It happened again on interstate next day. Brought to ford dealer and told it was cruise control cable. This is a very dangerous situation.”
NHTSA complaint #10340506, filed 2010-06, 93,000 miles“Unintended acceleration of vehicle without warning. Also had unintended shut downs of vehicle during previous week. Vehicle was taken to dealer for repairs. Dealer still has vehicle. I almost ran over 2 pedestrians crossing the street at a nursery school. I was able to control the problem with the vehicle's brakes.”
NHTSA complaint #10110408, filed 2005-02, 46,800 miles“On the baltimore-washington parkway (295 n ) northbound, changed lanes to the left and accelerated. The gas peddle was pushed to the floor, stayed there and would not release. I stood on the brakes, but only somewhat slowied the acceleration. The vehicle continued until we reached about 80mph and coming close to rear ending the vehicle in front of me. I went off on the shoulder and turned off the ignition key to get the vehicle stopped. The brake overheated brakes. I could not see a problem. This was not caused by a floor mat. The pedal was stuck to the floor. …”
NHTSA complaint #10633440, filed 2014-09, 97,300 miles“2003 Mercury Mountaineer the cruise control on the steering column . The off button does not work ,the brake pedal must be applied, and the button to slow down the truck also does not work . No specific date ,a complaint was made to ford when it first happened when the truck was under warranty but they said they could not find anything wrong .”
NHTSA complaint #10350442, filed 2010-08, 85,000 miles“I read an article from the chicago tribune titled sticky throttles. I have a 2003 Mercury Mountaineer and the unintended acceleration happened to me on july 13th. I was coming to a stop at a stop light and just as I was about to a complete stop, with my foot on the brake, it tried to accelerate and then stopped. So you may also want to look a the 2003 model also. The article I mentioned is below. …”
NHTSA complaint #10129082, filed 2005-07Vehicle 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 2003 Mercury Mountaineer
59 complaintsTransmission and drivetrain
42 complaintsElectrical system
11 complaintsBrakes
10 complaintsEngine cooling
10 complaintsSuspension
10 complaintsAir bags
9 complaintsFuel system
7 complaintsVisibility (wipers, defrost, mirrors)
7 complaintsLatches, locks and linkages
6 complaintsOther or unknown
6 complaintsSteering
6 complaints
← All problems reported for the 2003 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