2010 Mercury Mariner Problems

Above Average Complaints

Real NHTSA owner complaints for the 2010 Mercury Mariner.

20092011
Complaints
393
Crashes
4
Fires
4
Injuries
12
Fatalities
Recalls
2

Worst 2010 Mercury Mariner Problems

Top 3 most-reported issues with average mileage at failure.

#166 complaints

Unintended Acceleration

Avg mileage:56,596 mi
Crash-related:1
#261 complaints

Engine Problems

Avg mileage:60,910 mi
Fires:1
#359 complaints

Steering Defects

Avg mileage:109,389 mi
Crash-related:1
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All Problems by Category

Every NHTSA complaint category for the 2010 Mercury Mariner.

Unintended Acceleration
66
complaints
Crashes
1
Fires
Avg Miles
56,596
Engine Problems
61
complaints
Crashes
Fires
1
Avg Miles
60,910
Steering Defects
59
complaints
Crashes
1
Fires
Avg Miles
109,389
Fuel System
57
complaints
Crashes
Fires
Avg Miles
64,983
Transmission / Drivetrain
57
complaints
Crashes
Fires
1
Avg Miles
57,404
Electrical Faults
28
complaints
Crashes
1
Fires
1
Avg Miles
64,868
Body Structure
7
complaints
Crashes
Fires
Avg Miles
94,100
Electronic Stability Control
6
complaints
Crashes
Fires
Avg Miles
96,180
Gasoline Fuel System
6
complaints
Crashes
Fires
Avg Miles
43,188
Brakes
5
complaints
Crashes
Fires
Avg Miles
90,000
Headlight/Taillight Failures
4
complaints
Crashes
Fires
1
Avg Miles
Airbags
3
complaints
Crashes
Fires
Avg Miles
Automatic Transmission
3
complaints
Crashes
Fires
Avg Miles
Side/Rear Glass
3
complaints
Crashes
Fires
Avg Miles
Engine & Cooling
2
complaints
Crashes
Fires
Avg Miles
Suspension Failures
2
complaints
Crashes
Fires
Avg Miles
Wipers & Visibility
2
complaints
Crashes
Fires
Avg Miles
Air Bags:Frontal:Sensor/Control Module
1
complaints
Crashes
Fires
Avg Miles
Electrical System:12v/24v/48v Battery
1
complaints
Crashes
Fires
Avg Miles
Fuel System, Gasoline:Delivery
1
complaints
Crashes
Fires
Avg Miles
Power Train:Automatic Transmission:Control Module (Tcm/Pcm/Tecm)
1
complaints
Crashes
Fires
Avg Miles
Seat Belt Issues
1
complaints
Crashes
1
Fires
Avg Miles
Steering:Column
1
complaints
Crashes
Fires
Avg Miles
Vehicle Speed Control:Accelerator Pedal
1
complaints
Crashes
Fires
Avg Miles
Visibility
1
complaints
Crashes
Fires
Avg Miles
Visibility:Rear Window Wiper/Washer:Motor
1
complaints
Crashes
Fires
Avg Miles
Sunroof/Moonroof
1
complaints
Crashes
Fires
Avg Miles
Wheel Issues
1
complaints
Crashes
Fires
Avg Miles

Search Owner Complaints

Read what owners actually reported to NHTSA for the 2010 Mercury Mariner. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.

Recalls for 2010 Mercury Mariner

2 NHTSA recall campaigns affecting ~1,070,143 vehicles.

16V777000Fuel Pump
~329,265 affected

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.

14V284000Steering:electric Power Assist System
~740,878 affected

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.

Other Mercury Mariner Years

2010 Mercury Mariner — FAQ

Answers based on real NHTSA complaint and recall data for this specific model year.

Is the 2010 Mercury Mariner reliable?
Verdict: Above Average Complaints. The 2010 Mercury Mariner has 393 NHTSA complaints, 4 crash-related, and 2 recall campaigns. The most common issue is Unintended Acceleration with 66 complaints. Source: NHTSA via VinItel.
What are common problems with the 2010 Mercury Mariner?
Top reported problems: Unintended Acceleration (66 complaints, avg 56,596 mi); Engine Problems (61 complaints, avg 60,910 mi); Steering Defects (59 complaints, avg 109,389 mi). Every complaint is filed by an owner with NHTSA — this is raw reported data, not editorial opinion.
At what mileage do problems start on the 2010 Mercury Mariner?
The weighted average mileage at time of complaint is about 70,006 miles. Some components fail earlier, some later — check the "All Problems by Category" table above for per-issue averages.
How safe is the 2010 Mercury Mariner?
NHTSA complaints for the 2010 Mercury Mariner include 4 crash-related reports, 4 fire reports, 12 injuries, and 0 fatalities. These are owner-reported incidents, not official crash-test ratings — a complaint being filed doesn't confirm a defect, but clusters around specific components are worth investigating.
Does the 2010 Mercury Mariner have any recalls?
Yes — 2 NHTSA recall campaigns affecting an estimated 1,070,143 vehicles. Recalls are free to fix at the dealer. Always verify by VIN whether the specific car you're looking at has had its recalls addressed.
Should I buy a 2010 Mercury Mariner?
Slightly worse than average. Most owners are fine; problem clusters are concentrated around specific components. Check the issues table below and match against the specific car's mileage.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.

Wider context: See the full Mercury Mariner reliability report with year-by-year comparison and generation analysis.

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