Flex (1st)
Engine Reliability Ratings
GTDI
3.5L 6-cyl Turbo / 355 hpView details
Complaint Breakdown
Known Issues
1 additional engine variant with fewer than 10 complaints not shown.
Vehicle-Level Issues
These issues affect the Ford Flex regardless of engine variant.
Recalls (14)
Ford Motor Company (Ford) is recalling certain 2017-2019 Flex vehicles. The driver and front passenger B-Pillar door trim may detach while driving.
Ford Motor Company (Ford) is recalling certain 2015-2019 Flex, 2015 Explorer, Lincoln MKT, Lincoln MKZ, 2015-2016 C-Max, Escape, Taurus, 2016 Fusion, 2018-2019 Taurus, 2019 Lincoln MKT, Fiesta, and 2020 Mustang vehicles. The rearview camera may display a distorted, intermittent, or blank image when the vehicle is in reverse.
Ford Motor Company (Ford) is recalling certain 2019 Flex, Fiesta, and Lincoln MKT vehicles. The rearview camera may intermittently display a blank or distorted image.
Ford Motor Company (Ford) is recalling certain 2013-2018 Lincoln MKT and Ford Flex and Taurus vehicles with the Police Interceptor or SHO Performance Pack. The rear suspension toe links may fracture due to stress on the rear suspension.
Ford Motor Company (Ford) is recalling certain 2018 Ford Edge, Lincoln MKX, 2019 Ford Flex, and Lincoln MKT vehicles. The power supply cables at the starter and the alternator may not have been properly secured, possibly resulting in an electrical arc.
Ford Motor Company (Ford) is recalling certain model year 2009-2012 Ford Flex, 2008 and 2010-2012 Ford Taurus, 2008-2009 Ford Taurus X, 2008 Mercury Sable, 2009 and 2011 Lincoln MKS vehicles. The driver frontal air bag may improperly inflate during second-stage deployment in the event of a high speed crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
Ford Motor Company (Ford) is recalling certain model year 2013-2015 Ford Taurus, Ford Flex, Lincoln MKS and Lincoln MKT vehicles equipped with 3.5L GTDI Ecoboost engines and 2013-2015 Ford Taurus Police Interceptor vehicles. A component within the fuel pump electric module (PEM) may overheat causing a loss of electrical power to the fuel pump.
Ford Motor Company (Ford) is recalling certain model year 2016 Ford Taurus, 2016-2017 Ford Flex, Lincoln MKT, 2017 Ford Explorer and Ford Explorer Police Interceptor Utility vehicles equipped with 3.5L GTDI engines. Improperly brazed turbocharger oil supply tubes may leak oil on engine components.
Ford Motor Company (Ford) is recalling certain model year 2015 Ford Taurus, Ford Flex, and Lincoln MKS vehicles manufactured May 4, 2015, to May 23, 2015, Lincoln MKT vehicles manufactured May 4, 2015, to May 21, 2015, and 2015-2016 Ford Explorer vehicles manufactured May 4, 2015, to May 23, 2015. The affected vehicles have a parking brake that may not fully engage when applied. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 135, "Light Vehicle Brake Systems."
Ford Motor Company (Ford) is recalling certain model year 2013 Explorer, Explorer Police Utility, Taurus, Taurus Police Interceptor, Flex, Lincoln MKS, and Lincoln MKT vehicles. In the affected vehicles, the fuel delivery module may crack, allowing fuel to leak.
Ford Motor Company (Ford) is recalling certain model year 2011-2012 Ford Fusion vehicles without a 3.5L engine and Lincoln MKZ hybrid electric vehicles, 2011 Mercury Milan vehicles, 2011-2012 Ford Taurus, Ford Flex, Lincoln MKS, and Lincoln MKT vehicles equipped with a 3.5L GTDI engine and 2013 Ford Taurus, Ford Flex, Lincoln MKS, and Lincoln MKT vehicles equipped with any available engine. The affected vehicles have electric power steering assist systems that may shut down as a result of a steering motor sensor fault.
Ford Motor Company (Ford) is recalling certain model year 2014 Ford F-150 and Flex vehicles manufactured March 1, 2014, to May 31, 2014. The affected vehicles were manufactured with a reduced clearance between the seat frame and the seat track assembly. This can cause the Occupant Classification System (OCS) to inaccurately register passenger weight and improperly suppress the passenger front airbag when the passenger seat is occupied by an adult passenger. Thus, these vehicles fail to comply with Federal Motor Vehicle Safety Standard (FMVSS) No. 208, "Occupant Crash Protection."
Ford Motor Company (Ford) is recalling certain model year 2012-2014 Ford Edge and Lincoln MKX vehicles manufactured September 2, 2010, to November 30, 2013; 2013-2014 Ford Taurus and Lincoln MKS vehicles manufactured August 25, 2011, to November 30, 2013; and 2013-2014 Ford Flex and Lincoln MKT vehicles manufactured September 12, 2011, to November 30, 2013. In the affected vehicles, the halfshaft retention circlip may not have been properly installed, and as a result, the halfshaft may move outward and disengage from the linkshaft while driving and without prior warning.
Ford is recalling certain model year 2013 Explorer, Taurus, Flex, Fusion, Police Interceptor Sedan and Police Interceptor Utility vehicles; and certain model year 2013 Lincoln MKS, MKT, and MKZ vehicles. In the affected vehicles, the fuel delivery module may develop a crack, allowing fuel to leak.
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Frequently Asked Questions
What are the most common 2009-2019 Ford Flex problems?
The 2009-2019 Ford Flex has accumulated 1,794 NHTSA complaints. The most frequently reported problem areas are Steering, Engine, Electrical System. As with any used vehicle, a pre-purchase inspection and vehicle history report are recommended.
Which Ford Flex engine is most reliable?
The 2009-2019 Ford Flex was offered with 2 engine options. Based on NHTSA complaint data, the 3.5L 6-cyl has the lowest complaint density and is considered the most reliable choice for buyers.
Is the 2009-2019 Ford Flex a good used car?
The 2009-2019 Ford Flex can be a solid used car purchase depending on trim, mileage, and maintenance history. With 1,794 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.
How many NHTSA complaints does the 2009-2019 Ford Flex have?
The 2009-2019 Ford Flex has 1,794 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.
What recalls affect the 2009-2019 Ford Flex?
There are 14 NHTSA recalls affecting some 2009-2019 Ford Flex vehicles. Recall status varies by VIN — check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.
What should I check before buying a used Ford Flex?
Before buying a used Ford Flex, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Steering, Engine, Electrical System, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.
Does the Flex have NHTSA crash test ratings?
NHTSA has not published crash test ratings for the 2009-2019 Ford Flex. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.
Data from NHTSA federal complaints database. 1,794 complaints analyzed. Data confidence: high. Last updated: 2026-04-07.