2010 Mercury Mariner Problems, Complaints & Recalls

Source: NHTSA · Updated Aug 11, 2026 · 270 owner complaints analyzed

Compared with other Mariner years
Far more complaints than other years 3rd of 11 for complaints
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.

Mercury Mariner
2005-2007 Mercury Mariner photographed in College Park, Maryland , USA.. Representative photo; appearance varies by model year. Photo: IFCAR, Public domain, via Wikimedia Commons.

Complaints are unverified owner reports and are not adjusted for sales volume.

Compare with another car

Most common 2010 Mercury Mariner problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Vehicle Speed Control66 · ~50,000 mi
Engine61 · ~52,000 mi
Steering61 · ~110,000 mi
Power Train60 · ~52,000 mi
Fuel/propulsion System57 · ~48,655 mi
Electrical System29 · ~59,000 mi
Unknown or Other11 · ~76,500 mi
Fuel System, Gasoline7 · ~42,475 mi
Structure7 · ~110,000 mi
Electronic Stability Control (esc)6 · ~77,500 mi
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Vehicle Speed Control problems6624%50,000“throttle body” (67%)—
Engine problems6123%52,000“throttle body” (46%)—
Steering problems6123%110,000“power steering assist” (39%)—
Power Train problems6022%52,000“throttle body” (42%)—
Fuel/propulsion System problems5721%48,655“throttle body” (47%)—
Electrical System2911%59,000——
Unknown or Other114%76,500——
Fuel System, Gasoline73%42,475——
Structure73%110,000——
Electronic Stability Control (esc)62%77,500——
Visibility62%30,000——
Service Brakes52%80,000——
Air Bags41%7,290——
Exterior Lighting41%33,900——
Engine and Engine Cooling21%52,594——
Suspension21%———
Visibility/wiper21%92,000——
Seat Belts10%102,000——
Wheels10%———

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2013, with 102 complaints
2010: 4201042011: 112012: 5201252013: 1021022014: 252014252015: 12122016: 212016212017: 19192018: 242018242019: 14142020: 112020112021: 442022: 152022152023: 552024: 2202422025: 552026: 120261

n = 270 complaints · Source: NHTSA

2010 Mercury Mariner recalls (2)

Tap a recall to see the problem, the risk and the fix.

Fuel system, gasoline:delivery:fuel pumpOct 26, 2016 · NHTSA campaign 16V777000 · 329,265 vehicles

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 systemMay 29, 2014 · NHTSA campaign 14V284000 · 740,878 vehicles

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…

Steering · received Aug 11, 2026 · NHTSA complaint 11756234

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…

Steering · received Dec 23, 2025 · NHTSA complaint 11706734

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…

Electrical System · received Sep 8, 2025 · NHTSA complaint 11685632

The passenger side of the subframe has holes and will veer hard right when it brakes

Structure · received Jun 5, 2025 · NHTSA complaint 11665008

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.

Steering · received May 12, 2025 · NHTSA complaint 11660487

Other Mercury Mariner years

← 2009 Mariner · 2011 Mariner →

See all Mercury Mariner problems by year, every Mercury model, or the VIN decoder.

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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.