2010 Mercury Mariner Problems, Complaints & Recalls
- Compared with other Mariner years
- Far more complaints than other years 3rd of 11 for complaints
- Safety recalls
- 2 recalls: check your VIN
- NHTSA crash rating
- Not rated
Owners have filed 270 complaints with NHTSA about the 2010 Mercury Mariner. That ranks 3rd out of 11 Mariner model years for complaints. The most reported problem area is vehicle speed control (66 complaints, 24%), typically at around 50,000 miles. Complaints mention 2 crashes, 2 fires, 6 injuries. There are 2 safety recalls covering this model year. NHTSA has opened 3 defect investigations involving it.

- 270owner complaints
- 2safety recalls
- 3NHTSA investigations
- 2complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2010 Mercury Mariner problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Vehicle Speed Control problems | 66 | 24% | 50,000 | “throttle body” (67%) | — |
| Engine problems | 61 | 23% | 52,000 | “throttle body” (46%) | — |
| Steering problems | 61 | 23% | 110,000 | “power steering assist” (39%) | — |
| Power Train problems | 60 | 22% | 52,000 | “throttle body” (42%) | — |
| Fuel/propulsion System problems | 57 | 21% | 48,655 | “throttle body” (47%) | — |
| Electrical System | 29 | 11% | 59,000 | — | — |
| Unknown or Other | 11 | 4% | 76,500 | — | — |
| Fuel System, Gasoline | 7 | 3% | 42,475 | — | — |
| Structure | 7 | 3% | 110,000 | — | — |
| Electronic Stability Control (esc) | 6 | 2% | 77,500 | — | — |
| Visibility | 6 | 2% | 30,000 | — | — |
| Service Brakes | 5 | 2% | 80,000 | — | — |
| Air Bags | 4 | 1% | 7,290 | — | — |
| Exterior Lighting | 4 | 1% | 33,900 | — | — |
| Engine and Engine Cooling | 2 | 1% | 52,594 | — | — |
| Suspension | 2 | 1% | — | — | — |
| Visibility/wiper | 2 | 1% | 92,000 | — | — |
| Seat Belts | 1 | 0% | 102,000 | — | — |
| Wheels | 1 | 0% | — | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2010 Mercury Mariner recalls (2)
Tap a recall to see the problem, the risk and the fix.
Fuel system, gasoline:delivery:fuel pump
Problem: Ford Motor Company (Ford) is recalling certain model year 2010-2012 Ford Escape vehicles manufactured February 26, 2009, to April 29, 2012, and 2010-2011 Mercury Mariner vehicles manufactured February 25, 2009, to December 12, 2010. On vehicles with a 3.0L engine, the Fuel Delivery Module (FDM) may crack, causing a fuel leak.
Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.
Fix: Ford will notify owners, and dealers will replace the FDM flange with one that has a redesigned fuel supply port, free of charge. Remedy parts are currently unavailable. Interim notices were mailed to owners on December 13, 2016. Owners will receive a second notice when remedy parts become available. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S41.
Steering:electric power assist system
Problem: Ford Motor Company (Ford) is recalling certain model year 2008-2011 Ford Escape and Mercury Mariner vehicles manufactured August 18, 2006, through September 11, 2010. The affected vehicles have a steering torque sensor that may not be able to properly detect driver steering input. As a result, the system could remove the Electric Power Steering (EPS) assist.
Risk: If power steering assist is lost, greater driver effort would be required to steer the vehicle at low speeds, increasing the risk of a crash.
Fix: Ford will notify owners, and dealers will update the software for the power steering control module (PSCM) and the instrument cluster module, free of charge. If a vehicle shows a history of a loss of the torque sensor signal or fault codes relating to the PSCM when the vehicle is brought in for the recall remedy, the affected components will be replaced, free of charge. The recall began on July 18, 2014. Owners may contact Ford customer service at 1-800-392-3673. Ford's number for this recall is 14S05.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
NHTSA defect investigations
- Loss of power steering while driving (DP15001) — opened Apr 1, 2015, closed Jun 14, 2018.
- Electronic Throttle Body Malfunction (PE13003) — opened Feb 21, 2013, closed Feb 28, 2014.
- Rear Liftgate Window Glass Breakage (PE11016) — opened Apr 27, 2011, closed Aug 18, 2011.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
The contact owns a 2010 Mercury Mariner. The contact stated that while driving approximately 20 MPH, an alarm sounded, and the steering wheel locked up. The message "Power Steering Assist Fault" was displayed. The contact was able to drive to the residence nearby. The vehicle was not diagnosed or…
The contact owns a 2010 Mercury Mariner. The contact stated that after starting the vehicle, the message "Power Steering Assist Failure" was displayed, and the steering wheel became extremely difficult to turn in either direction. The local dealer and manufacturer were notified of the failure, but…
Me and my wife purchased a vehicle from a private seller to use for personal commute. A month later we started to notice more issue were occurring with the car then stated from the seller. I took it to an auto body shop to get it inspected and possibly serviced and upon that inspection the clerk…
The passenger side of the subframe has holes and will veer hard right when it brakes
Power Steering assist fault went out with no warning. Now steering wheel is locking up while driving. Also when trying to gain speed the vehicle bogs out.
Other Mercury Mariner years
← 2009 Mariner · 2011 Mariner →
| Year | Complaints | Recalls |
|---|---|---|
| 2011 Mariner | 87 | 2 |
| 2010 | 270 | 2 |
| 2009 Mariner | 315 | 1 |
| 2008 Mariner | 461 | 3 |
| 2007 Mariner | 33 | 2 |
| 2006 Mariner | 63 | 3 |
| 2005 Mariner | 67 | 2 |
| 2004 Mariner | 0 | 1 |
| 2003 Mariner | 0 | 1 |
| 2002 Mariner | 0 | 1 |
| 2001 Mariner | 0 | 1 |
See all Mercury Mariner problems by year, every Mercury model, or the VIN decoder.
Similar Mercury models
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Frequently asked questions
What are the most common problems with the 2010 Mercury Mariner?
Owners most often report vehicle speed control, engine, steering problems. The top one, vehicle speed control, accounts for 66 complaints.
Was there a recall on the 2010 Mercury Mariner?
Yes, 2 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2010 Mercury Mariner a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Mariner model years, the 2010 has far more complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.