Which parts fail
Components named in complaints (headlights, tail lights, turn signals, interior lights).
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 recently purchased the vehicle. When the vehicle was purchased, the dealer informed the contact that the vehicle had a failure with the steering wheel. The contact stated that while driving at various speeds, the steering wheel was difficult to maneuver. The message "Service Advancetrac" was displayed on the instrument panel, and an unknown message about the steering was displayed. In addition, while in reverse(R), the contact used force to turn the steering wheel. Most recently, the contact stated that when the turn signal lever was activated, the turn signal lever failed to stay down as intended. The contact had to hold the turn signal lever down to signal a right or left turn. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. …
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.
UNKNOWN So we bought the car used from the dealer exactly how they received it, and it was working normally but then a few weeks or a month or two we were going somewhere and one of the headlights would go out and we'd have to turn the switch off and back on to get it to turn back on, and it was one for a few weeks but then it started turning them both off, and then it eventually got to the point that we would turn the headlights on anf the passenger side headlight wouldn't turn on anymore at all, so I went and got a bulb incase that was the issue and so we went to put the new bulb in and as we disconnected the circuit in order to get to the bulb we found that 1, water would stay inside the plastic cover causing the main board of the headlight to be fully submerged. 2, The connector to the main board was melted and fried so it is unusable. …
2013 Ford Flex model pos, rear passenger door ajar sensor was repaired due to being defective while under warranty around 32000 miles I believe, at roughly 45000 miles the drivers door sensor was starting to fail, it would require 2 shuts to shut off. Battery kept dying, got it tested said good but kept dying, did not think it was a issue with the door, but one night I went out to get something from my truck and what do you know every light in the thing is on. Why? You ask because the drivers door is apparently ajar, but its not. I replaced the battery the morning before I seen the lights issue $200 gone. Contacted Ford by email recieved no response, contacted via facebook and they responded that they will try to help, recieved a call the next day nope we wont help you. For a $45000 truck it sure is made of low quality material. I will not be recommending Ford to anyone. …
The front passenger door ajar warning began showing while I was sitting in my driveway and the door has not been touched in fact there was not even a passenger in my vehicle. I tried opening and shutting the door several times and when this problem began and for about the first month the warning would reset. Since then the warning is present approximately 70% of the time. When the door ajar morning is active the interior lights stay on at low speed and regardless of speed you're unable to lock the doors. These issues are when the door ajar morning is active the interior lights stay on at low speed and regardless of speed you're unable to lock the doors which cause obvious safety and security issues as well as the added danger of not being aware of an actual door ajar. …
The vehicle incorrectly believes the doors are open when they are shut. This prevents the doors from locking at all speeds, which is an unsafe condition. If an occupant tries to lock the doors while the vehicle is in motion, the vehicle immediately unlocks the doors. The issue also causes the interior lights to stay illuminated while the vehicle is parked and until the vehicle reaches an appropriate speed when in use. The open/closed state of the door changes at random (without the actual door being opened or closed) and causes the alarm to randomly go off when the vehicle is parked. The combination of the lights staying illuminated and the alarm going off when the vehicle is parked drained and ruined the battery in the vehicle. Jump starting the vehicle did not work and the battery had to be replaced.
The door front driver side door sensor went bad and tells car that door is ajar. This was replaced under warranty last year. Now yesterday the same thing has happened to the front passenger side door sensor. This was quoted to me at $700. This is ridiculous for a bad door sensor that Ford has put bad and faulty sensors on. I feel that I should not be liable for .the Ford dealership in town said, "this is a problem with Ford Flex". This door ajar sensor keeps lights illuminated draining the battery, even though the door is shut. This keeps the lights on when driving, and at night makes it very very hard to see and drive. This will cause an accident due to faulty door sensors.
Tl* the contact owns a 2013 Ford Flex. The contact stated that the interior lighting remained illuminated after the vehicle was shut off. In addition, the door ajar warning indicator illuminated and the interior lighting would sporadically illuminate even with no driver or passenger in the vehicle. The contact also stated the vehicle had difficulty locking while the lights were illuminated. The vehicle was not taken to a dealer or manufacturer to be diagnosed or repaired. The manufacturer was notified of the failures. The failure mileage was approximately 58,000. Updated 04/20/16 consumer also stated rear light power locks as well updated 6/6/18
Door ajar warning stays on for drivers door. Begin as intermittent problem resolved by opening and closing the door till the door sensor registered the door closed. Progressively got worse and 7 months later the door ajar light stays on all the time. Interior lights remain on all the time and the auto door locks do not engage when driving. I talked to my local Ford dealer who said it just needs oiled and it will fix the problem. We have oiled it and cleaned it with compressed air and it has done nothing. If Ford can't stand behind this kind of thing, I'll be buying a Hyundai or a Honda next for a better warranty and for a higher quality vehicle.
Faulty door sensors. Door ajar light is constantly on even when door is shut. Makes it hard to drive at night as the dome light remains on for minutes after driving making reducing visibility while driving. With the door ajar light constantly on, makes it difficult to determine whether the door is open or closed. Due to the door ajar light, the dome light constantly remains causing excessive wear on the battery. Fixed one sensor already, now another door sensor is causing the problem, along with my trunk sensor malfunctioning every time I hit any little bump. The lights come on as soon as we start the car, whether moving or parked.
Headlight complaints in other Flex years
Frequently asked questions
How common are headlight problems on the 2013 Ford Flex?
NHTSA has 38 complaints about the lights of the 2013 Ford Flex, 7% of the model year's 580 complaints. The component named most often is turn signal › switch (1 mentions).
Is there a recall for 2013 Ford Flex headlight problems?
No. NHTSA lists no lights 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 headlight problems start?
Half of the complaints with a recorded mileage happened before about 55,000 miles, and 4% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 0 fires and 1 injury to lights 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.