NHTSA vehicle safety data

2010 Mercury Mariner Recalls, Ratings & Complaints

The 2010 Mercury Mariner has 3 NHTSA recall campaigns and 270 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized Mercury dealer.

NHTSA recall and complaint data for the 2010 Mercury Mariner, plus NCAP crash-test ratings. Recall data is refreshed daily from NHTSA.

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2010 Mercury Mariner owner complaints

Owners have filed 270 complaints with NHTSA about the 2010 Mercury Mariner, describing incidents dated February 20, 2010 to August 9, 2026.

Most-cited components

Vehicle Speed Control 66 complaints
Engine 63 complaints
Fuel/Propulsion System 63 complaints
Steering 61 complaints
Power Train 60 complaints
Electrical System 29 complaints

Of the 270 complaints on file, 2 report a crash and 2 a fire; across all 270 complaints, owners report 6 injuries (owner-reported, not verified by NHTSA).

Newest complaints

ODI #11756234 · Filed August 11, 2026
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…
ODI #11706734 · Filed December 23, 2025
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…
ODI #11685632 · Filed September 8, 2025
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…

Read all 270 complaints

Owner-reported

2010 Mercury Mariner mileage at failure

225 of the 270 complaints on file for the 2010 Mercury Mariner give the vehicle's mileage when the problem happened.

Mileage at failure by component, from owners' complaints to NHTSA
Component	Median	Middle half	Based on
Vehicle Speed Control	Median 50,000 miles	Middle half 40,000–70,000 miles	Based on 62 complaints
Engine	Median 50,000 miles	Middle half 40,000–75,000 miles	Based on 57 complaints
Fuel/Propulsion System	Median 45,000 miles	Middle half 35,000–80,000 miles	Based on 48 complaints
Power Train	Median 50,000 miles	Middle half 40,000–75,000 miles	Based on 54 complaints

A component's median is its 50th percentile, and its middle half runs from its 25th to its 75th percentile.

Owners give the mileage themselves, often as a round number, and NHTSA doesn't check it. A complaint that names several components counts under each one, and mileages that can't be right, such as 999,999, or 50 miles on a five-year-old car, are left out.

These figures describe the complaints owners filed. They don't predict when a particular vehicle will have a problem, and vehicles that never had one aren't counted.

Mileage from NHTSA's complaints file of October 31, 2026. How these figures are worked out

NHTSA defect investigations

NHTSA's investigations file lists the 2010 Mercury Mariner in 3 investigations. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.

Defect Petition DP15-001: Loss of power steering while driving
Closed June 14, 2018
Preliminary Evaluation PE13-003: Electronic Throttle Body Malfunction
Closed February 28, 2014
Preliminary Evaluation PE11-016: Rear Liftgate Window Glass Breakage
Closed August 18, 2011

Open and recently closed NHTSA defect investigations

Fuel Delivery Module may Crack and cause Fuel Leak

NHTSA #16V777000 · Fuel System, Gasoline — Delivery — Fuel Pump · NHTSA notice

Reported October 26, 2016 · Ford Motor Company

Potentially affected: 329,265 vehicles

Repair completion: 51.7% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign 16S41 · Owners notified November 6, 2017 · Vehicles built February 25, 2009 – December 12, 2010 (per NHTSA)

Defect description

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.

Safety consequence

A fuel leak in the presence of an ignition source increases the risk of a fire.

Manufacturer remedy

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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Front Wheel Bearing has Wrong Dimensions

NHTSA #15E045000 · Suspension — Front — Wheel Bearing · NHTSA notice

Reported June 3, 2015 · Timken Company

Potentially affected: 576 vehicles

Repair completion: 58.24% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Owners notified May 20, 2015

Defect description

The Timken Company (Timken) is recalling certain aftermarket front wheel bearings, part number 510072, sold from January 22, 2015, to May 21, 2015, to be used as service parts on 2001-2012 Ford Escape, 2001-2011 Mazda Tribute, and 2005-2011 Mercury Mariner vehicles. The affected wheel bearings have incorrect dimensions of a 42mm bore, 76mm outer dimension, and 39mm width, instead of a 42mm bore, 78mm outer dimension and a 45mm width.

Safety consequence

Use of an incorrectly sized wheel bearing can adversely affect the braking and steering of the vehicle, increasing the risk of a crash.

Manufacturer remedy

Timken has begun notifying distributors who will offer purchasers replacement wheel bearings, free of charge. The recall began on May 21, 2015. Owners may contact Timken customer service at 1-866-984-6536.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Loss of Electric Power Steering Assist

NHTSA #14V284000 · Steering — Electric Power Assist System · NHTSA notice

Reported May 29, 2014 · Ford Motor Company

Potentially affected: 740,878 vehicles

Repair completion: 72.29% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign 14S05 · Owners notified July 18, 2014 · Vehicles built August 18, 2006 – September 11, 2010 (per NHTSA)

Defect description

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.

Safety consequence

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.

Manufacturer remedy

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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

2010 Mercury Mariner 4-DR. w/SAB

—

out of 5

Overall Safety Rating

Not Rated

Frontal Crash

Not Rated

Driver: 5, Passenger: 5

Side Crash

Not Rated

Driver: 5, Passenger: 5

Side Pole

Not Rated

Rollover

20% rollover risk

Safety Technology

Electronic Stability Control

4 investigations

270 owner complaints have been filed with NHTSA for the 2010 Mercury Mariner.

Steering

ODI #11756234

Incident: August 9, 2026 · Filed: August 11, 2026

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 repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was previously repaired under recall. The failure mileage was approximately 190,000.

Steering

ODI #11706734

Incident: December 19, 2025 · Filed: December 23, 2025

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 no assistance was provided. The contact was informed that the vehicle was previously repaired under NHTSA Campaign Number: 14V284000 (Steering), which the contact related to the failure. The cause of the failure was not yet determined. The failure mileage was 185,000.

Electrical System; Unknown or Other; Engine

ODI #11685632

Incident: September 4, 2025 · Filed: September 8, 2025

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 stated that there was a milage adjustment done to the vehicle. We contacted the seller to try and return the vehicle and receive our money back, but the dealer refused and requested us to resell it.

Structure

ODI #11665008

Incident: June 5, 2025 · Filed: June 5, 2025

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

Steering

ODI #11660487

Incident: May 1, 2025 · Filed: May 12, 2025

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.

Fuel/Propulsion System

ODI #11660227

Incident: December 1, 2023 · Filed: May 11, 2025

Engine light came on after putting fuel in my car it is hapless the codes read emission and fuel issues to replace cap but it is hapless it says it's an issue that needs to be fixed now my engine light won't go off

Steering

ODI #11569744

Incident: October 1, 2023 · Filed: February 4, 2024

The power steering assist is malfunctioning and it is available for inspection upon request. The steering wheel is very difficult to turn, it's as if the power steering assist is keeping the wheel from turning. No, but I spoke to someone at Ford and they said that it sounded like my car should be in the recall that was announced for my vehicle type but my VIN was not included in the recall. My car has not been inspected by anyone but it says right on the dash board digital display that there is a "Power Steering Assist Fault". Ford does this with many vehicles they recall, a lot of vehicles that should be included in the recalls are not and we're supposed to foot the bill for their lack of concern for public safety? It's going to cause an accident but it's my only working car and I can't afford to pay for their mistakes. How many have died due to their negligence I'm wondering.

Steering

ODI #11563086

Incident: December 21, 2023 · Filed: January 2, 2024

The contact owns a 2010 Mercury Mariner. The contact stated that while driving at approximately 5 MPH and attempting to park the vehicle, the power steering became inoperable. The power steering failure message was displayed. The vehicle was taken to the local dealer but was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline. The contact stated that the failure was related to NHTSA Campaign Number: 14V284000 (Steering). The failure mileage was unknown.

Steering

ODI #11552653

Incident: October 25, 2023 · Filed: October 30, 2023

The contact owns a 2010 Mercury Mariner. The contact stated while attempting to pull out of a parking space, she became aware that the electronic power steering was not functioning properly. The EPS warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 14V284000 (Steering) however, the VIN was not included. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was 65,000.

Unknown or Other; Fuel/Propulsion System

ODI #11543619

Incident: September 9, 2023 · Filed: September 9, 2023

My vehicle keeps throwing codes for the EVAP system. I have noticed many of these vehicles have to have their Purge Valve Cannister replaced along with the selenoid for it. I have to replace mine. Is that not a defect if the vehicle? I have owned several vehicles and never had this issue with any of them.

Other Mercury Mariner model years

Check your 2010 Mercury Mariner VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Mercury Mariner at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

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