2005 Mercury Mariner Vehicle speed control Problems
- Complaints
- 9about this part
- Share
- 13%of 67 total for the year
- Median mileage
- 63,803miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the vehicle speed control of the 2005 Mercury Mariner, 13% of the 67 complaints for this model year. Where a mileage was given, the median is 63,803 miles. 1 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 own a 2005 Mercury Mariner, purchased new. When it gets cold the gas pedal sticks, I push down and there is no response for a few times. This almost caused me to be rear ended this morning had I not put on the hazard lights. Once it warms up it is fine. This has been going on since I bought the car brand new in 2005. This has happened over 50 times and is starting to scare the heck out of me.”
NHTSA complaint #10246726, filed 2008-10, 55,000 miles“The problem is with the gas pedal, its hard to press/accelerate and sometimes when I press/accelerate from a stop and at speeds of 30 MPH, it gets stuck and I have to put it in neutral. Very dangerous situation.”
NHTSA complaint #10475934, filed 2012-09, 58,000 miles“On the freeway and car suddenly has overdrive light blinking, at the same time I began losing power, I was able to get off freeway but not after I open hood and nearly got run over. I was checking to see if there was overheating or smoke. But nothing. I have already replaced PCM, transmission, and torque converter. Consequently my shifter is broken and you can see down into transmission. Obviously no I can't drive, I will have to have vehicle towed. Why hasn't transmission been recalled on this vehicle. I could not think about if my child would have been with me and stood in front of car. …”
NHTSA complaint #10984959, filed 2017-05, 160,000 miles“Car accelerated as I tried to stop. Then when I tried to go, I pressed the gas and it would not go but the RPM's went really high. Then the car died and I had to wait a few minutes to turn it back on. 2nd incident- I was driving on a busy road during rush hour and tried to stop at a stop light but the car accelerated so I had to keep breaking but the car would not stop accelerating so I turned the car off. When I tried to turn the car back on, nothing worked (had no power at all therefore I could not turn on my hazards to signal to people that my car was stalled). …”
NHTSA complaint #10575271, filed 2014-03, 168,000 miles“The gas pedal stuck while driving, the car would only idle and not move. The car was in traffic and almost hit by another vehicle. On a prior date the gas pedal stuck and would not move, car just idled in a parking lot for about five minutes. This wasn't first time it stuck, but prior times it always released right away.”
NHTSA complaint #10683358, filed 2015-02, 141,000 milesVehicle speed control: other model years
Other parts of the 2005 Mercury Mariner
15 complaintsElectrical system
10 complaintsAir bags
8 complaintsEngine
8 complaintsEngine cooling
8 complaintsFuel system
7 complaintsVisibility (wipers, defrost, mirrors)
7 complaintsTires
5 complaintsOther or unknown
4 complaintsBrakes
3 complaintsBody and structure
3 complaintsSuspension
3 complaints
← All problems reported for the 2005 Mercury Mariner
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