Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2013 Ford Flex owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2013 Ford Flex. The contact stated that the vehicle had experienced several electrical failures, including that door erroneously locking and unlocking and the Lane Departure safety feature malfunctioning. The vehicle was taken to the local dealer who determined that the electronic body control module was faulty. After removing and reinstalling the module, the vehicle was repaired. Additionally, while the vehicle was in for service, the mechanic discovered that the water pump was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was 120,000.
The contact owns a 2013 Ford Flex. The contact stated the alarm and sensors were activated without warning. The contact received notification of NHTSA campaign number: 20V072000 (Suspension) however, the part to do the recall repair was unavailable. The vehicle was taken to the local dealer who confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was 144,284. Parts distribution disconnect.
The power steering assist stopped working while I was driving. It caused me to get into an accident. If other cars were around me I could have killed someone. I was driving just fine and then "POWER STEERING ASSIST FAULT" showed up on my cluster and the steering wheel locked up. It now won't work. This came without warning.
The passenger-side front door latch sensor is defective. The door latches securely when closed, but the door AJAR warning light remains illuminated. This leads to several issues including: - interior lights don't turn off for a very long time after the door is closed (i.e. on the order of 30 minutes after parking and 5 minutes when driving), - the alarm system goes off randomly and frequently when the vehicle is parked and locked (sometimes multiple times per hour), - the feature that auto-locks the doors when the vehicle is in motion does not work, - if one locks the doors while the vehicle is in motion, they will immediately unlock themselves. …
I had a recall for the driver door latch to be replaced. The very day that it was replaced, I get in, start my vehicle and the passenger door light comes on showing that it's open but it wasn't. I immediately go back inside to ask the service department since they literally just replaced the recalled drivers door latch. They stated that "it's a coincidence " and that it would cost to fix it. I drove it for as long as I could but my alarm would randomly go off and lights start blinking. I was afraid I'd come out oand my vehicle not start due to the battery being dead because of the alarm and lights going off. I broke down and paid to have the passenger door light fixed which the Ford service department told me it would. The EXACT same thing happened and now my back passenger door light keeps coming on!! Alarm randomly goes off and lights blink. I can't afford to gix this again. …
Vehicle would not start after 3 days of not being started or driven. After having the battery jumped the climate control unit malfunctioned. The heat would not turn off and stayed on full blast. This caused the car to overheat and difficult to drive even with the windows down. When brought to the dealership service center, they replaced the heater blower. This fixed the issue temporarily. Then the heat stopped working and in single digit temperatures the vehicle was too cold to drive. The dealership replaced the resistor. This again became a temporary fix. The heat came back but then the vehicle battery kept draining. Having some type of electrical issue put the vehicle at a possible risk for short circuiting, catching fire etc. This is an ongoing issue with ALL YEARS of the Ford Flex. …
The 2013 Flex has an issue with door ajar switch within the door latch mechanism failing. This results in the car incorrectly identifying the door as "ajar" when it is closed. The result is that the automatic door locking does not activate when the car is in motion. This means that the door remains unlocked unless manually locked by the passenger. This can pose a safety hazard as the door could come open in an accident or be opened while in motion by a passenger. This problem has been well described on the web with multiple work around including disabling the mechanism or wiring a different switch in. It also described as typically happening around 69,000 miles. …
Power steering. While I was driving in my neighborhood the power steering went out and I could not make a turn. It locked up while driving. I could have got into a head on collision/accident becasue the road turns. Yes, I reported it to Ford and they told me my flex did not have a recall despite the ford website stating that some 2013 ford flex are affected. The description of 15s18 sterring recall matches my same issue and it poses a serious safety hazard. Yes, i took it to a mechanic at an auto shop and her is telling me that he can't fix recalls. At the time of the accident, i got No pre warning just the message that states: "Steering Lock Malfunction Service Now: The steering lock system has detected a condition that requires service." This happened on or around 11/23/25. I am requesting that Ford pay for my power steering to be fixed.
While driving, the radio turns off and the climate control system malfunctions causing the heater to engage to high with no way to turn the system off. All controls are disabled and there is no way to turn the system off. Unplugged the battery for 30 minutes as suggested, removed fuses to the radio and climate control module which temporarily fixes the issue, but issue happens randomly and creates excessive heat in the cabin. This is the 5th time this has happened. It is the 3rd time while on long trips (3hrs or longer). Others online have mentioned the same. We had to ride with the windows and moonroof open to let the heat escape. First time occurred in 2019 in early December. Navigation still worked, but all other systems would not function.
The front drivers door latch. When the door is shut their is an alarm stating that the door is ajar. Per Ford their is a Customer Satisfaction Program 19N09 for it. I bought this vechicle Monday June 20, 2022. Per Ford they notified me of this issue as well but they will not fix it as it is past the 84,000 miles/7 years as well as the 120,000 miles and July 31, 2020. This vechile per the records has been services at Thoroughbred Ford in Kansas City, MO since the day it was bought and yet it has not been fixed? And now they are not willing to fix it.
Electrical complaints in other Flex years
Frequently asked questions
How common are electrical problems on the 2013 Ford Flex?
NHTSA has 201 complaints about the electrical system of the 2013 Ford Flex, 35% of the model year's 580 complaints. The component named most often is 12v/24v/48v battery (1 mentions).
Is there a recall for 2013 Ford Flex electrical problems?
No. NHTSA lists no electrical system recall for the 2013 Ford Flex, though it has 6 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2013 Ford Flex electrical problems start?
Half of the complaints with a recorded mileage happened before about 55,000 miles, and 3% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 1 fire and 0 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.