Mercury Mariner Vehicle Speed Control Problems
Owners have filed 179 complaints with NHTSA about vehicle speed control problems on the Mercury Mariner across 7 model years. The 2010 model year has the most (66). The words owners use most often: “throttle body” (40% of reports).
- 179vehicle speed control complaints
- —median miles at failure
- 5mention a crash
- 2mention an injury
- 0related recalls
- 42%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Throttle body: mentioned in 71 of 179 complaints (40%)
- Lost acceleration: mentioned in 9 of 179 complaints (5%)
- Off restarted: mentioned in 9 of 179 complaints (5%)
- Few minutes: mentioned in 9 of 179 complaints (5%)
At what mileage do vehicle speed control problems happen?
Based on 167 complaints that reported the odometer reading.
How serious are the reports?
Of 179 complaints, 5 mention a crash, 2 an injury.
Mercury Mariner vehicle speed control complaints by model year
| Model year | Vehicle Speed Control complaints | Share of that year | Median miles |
|---|---|---|---|
| 2011 Mariner | 15 | 17% | 41,926 |
| 2010 Mariner | 66 | 24% | 50,000 |
| 2009 Mariner | 41 | 13% | 70,000 |
| 2008 Mariner | 31 | 7% | 78,500 |
| 2007 Mariner | 4 | 12% | 50,000 |
| 2006 Mariner | 13 | 21% | 87,750 |
| 2005 Mariner | 9 | 13% | 63,803 |
When owners reported it
Related recalls (0)
No safety recall lists vehicle speed control for the Mercury Mariner. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
The PCM shorts out and fails when sparkplug and Coil packs replaced this cause the steering system to fail speedometer to quit and no transmission connection
2008 mercury mariner throttle control powertrain light comes on, transmission cannot go into gear properly, it stops at 4000 rpm, and it struggles to go at higher speeds,
I realized sometime last year that my throttle was sticking when i would start the car and begin to take off. It was here and there and then i must have gotten use to it but now it does it even when i'm driving, it sticks all the time. Now it doesn't want to shift at the right times and it acts…
Takata recall well driving my vehicle lost acceleration.when i step on the gas the vehicle didn't accelerate as the rpm went up.i was coming to a stop light on city street.as i made the stop at stop-light as the light turn green i stepped on the has and the rpms went up but vehicle barely moved.
Tool light comes on and car loses power in traffic, very, very dangerous. Dealership updated with computer but vehicle is still doing it. Please do a recall ford.
Frequently asked questions
Do all Mercury Mariners have vehicle speed control problems?
No. NHTSA has 179 owner complaints about vehicle speed control for the Mercury Mariner. Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the Mercury Mariner vehicle speed control?
No recall currently lists vehicle speed control for this vehicle.
What do owners say about vehicle speed control problems on the Mercury Mariner?
The most frequent phrase is “throttle body”, in 71 of 179 complaints, followed by “lost acceleration” (9).
Other Mercury Mariner problems
- Steering problems (557)
- Power Train problems (231)
- Engine problems (162)
- Fuel/propulsion System problems (109)
- Electrical System problems (105)
See all Mercury Mariner problems.