Owners of 2015 F-150s cite a constellation of seat belt and door latch failures. Rear suicide doors on Extended and Super Cab models fail to latch closed—the latch cable stretches and the door swings open during turns, bumps, or light pressure, even at highway speeds. One dealer said he sees this "several times a week" on F-150s with rear suicide doors. Cold weather (around 17°F) triggers the problem, though debris isn't the cause.
Front doors also fail to latch on both driver and passenger sides, staying open or popping open during motion. Seat belt pretensioners get stuck in tension mode, leaving belts unable to retract or expand. One owner's belt suddenly tensioned while backing up and froze solid. Another reported a pretensioner spring that was rusted and broken at 63,000 miles—outside the warranty period. A shoulder harness periodically fails to hold the passenger, and in cold weather, belts ice over and lose function. One critical complaint documents a seat belt that failed to lock during a 35 mph head-on collision, allowing the occupant to strike the airbag with enough force to cause broken teeth, facial burns, and severe bruising. Dealers cite parts shortages even months after recall notifications, and some shops say they cannot schedule repairs.
Failure modes owners describe
Rear door latches fail to engage (Extended/Super Cab)
Rear suicide doors on Extended Cab and Super Cab models fail to latch closed. Door latch cable stretches, preventing engagement. Doors open during motion—especially on turns, bumps, or light pressure. Cold weather (around 17°F) exacerbates the problem. Dealer reports seeing this multiple times per week on F-150s with rear suicide doors.
When: 3 years old (per one complaint); occurs at all speeds in motion; cold weather triggers
Symptoms owners cite: Door does not latch closed; Door opens during vehicle motion; Door opens during right-hand turns or bumps; Door latch cable visibly stretched; "Door ajar" warning when door moves freely; Latch fails to engage when tested stationary
Repairs/costs cited: Door latch cable replacement; dealer charged customer (no warranty coverage on 3-year-old vehicle)
Front door latches fail (passenger and driver side)
Front doors fail to latch closed, allowing doors to open while driving at any speed. Problem affects both passenger and driver side doors. Owner repeatedly closes door with force attempting to correct. Related to NHTSA Recall Campaigns 17V652000 (Latches/Locks/Linkages) and 18V568000 (Seat Belts, Structure), though dealer reported parts unavailable months after recall notification.
When: At 44,500 miles
Symptoms owners cite: Front door remains open after forceful closure; Front door fails to latch; Door opens while driving at various speeds; Repeated attempts to close door required
Recalls/TSBs owners mention: NHTSA Campaigns 17V652000 and 18V568000; parts unavailable at time of recall notification in December 2017
Rear door entrapment design defect (Crew Cab)
Design flaw in rear doors of Extended Cab and Crew Cab models traps rear seat passengers. Rear doors cannot open unless front door is opened first. No alternative egress for rear passengers in an accident scenario. Creates serious safety hazard if front seat passenger is incapacitated.
Symptoms owners cite: Rear door cannot be opened independently of front door; No alternative method of egress for rear seat passengers; Passenger trapped if front occupant is incapacitated
Seat belt tensioner stuck in tension (pretensioner failure)
Pretensioner spring fails, leaving seat belt stuck in tensioned position. Belt will not retract or expand. Occurs during normal driving (backing up in one case). Owner reported issue affected vehicles outside original recall window (June 2015 build versus January 22–March 17, 2015 recall). One complaint noted pretensioner spring rusted and broken.
When: June 2015 build (outside recall window); one case at 63,000 miles
Symptoms owners cite: Seat belt stuck in tension mode; Belt will not retract or expand; Sudden tightening during vehicle operation; Pretensioner spring broken or rusted
Repairs/costs cited: Pretensioner spring replacement; cost $450 in one case; not covered under warranty in at least one case
Recalls/TSBs owners mention: Recall issued for builds January 22–March 17, 2015 SuperCrew models only; June 2015 build experienced same issue but not included in recall
Seat belt fails to retract
Various seat belt retractor failures across front passenger, middle, and rear positions. Retracting springs malfunction or break. In slow-then-hard braking scenario, one passenger-side retractor fails to hold occupant even after replacement unit installed.
When: One case at approximately 63,000 miles; one at 3,700 miles (rear)
Symptoms owners cite: Seat belt does not retract; Retractor spring broken; Passenger slides forward in slow-then-hard braking; Repeated failure even after replacement
Repairs/costs cited: Seat belt retractor replacement; dealer repairs performed
Seat belt fails to lock on impact (restraint failure)
Seat belt failed to lock during head-on collision at 35 mph, allowing occupant to strike airbag with force. Resulted in severe injuries: broken teeth, airbag burns with scars, abdominal bruising, facial injuries, and neck/back trauma.
When: June 13, 2016; at ~35 mph collision
Symptoms owners cite: Seat belt does not lock on impact; Occupant thrown toward dashboard/airbag; Lack of restraint during frontal collision
Shoulder harness fails to lock (intermittent)
Passenger side shoulder harness periodically fails to hold occupant, forcing passenger to slide seat back to avoid injury. Problem persisted even after original belt replacement; replacement unit still occasionally fails.
When: From day one; issue persisted after 30,000 miles of driving
Symptoms owners cite: Shoulder harness does not hold periodically; Passenger slides forward in seat; Problem recurs after replacement
Repairs/costs cited: Shoulder harness replaced once; issue improved but still occurs
Seat belt freezing in cold weather
Seat belts ice over in cold weather conditions, causing failure to retract, hold tension, or function properly. Water intrusion into doors drains poorly, contributing to icing problem.
When: Cold weather conditions
Symptoms owners cite: Seat belts ice over; Belt does not retract; Belt loses tension in cold; Water in doors not draining properly
Middle seat belt stuck/inoperable
Middle seat belt pretensioner stuck, rendering middle seat unusable. Prevents installation of child safety seat in center position. Dealer unable to schedule timely inspection.
Symptoms owners cite: Middle seat belt does not work; Middle seat stuck in down position; Cannot install child car seat in middle; Pretensioner stuck
Seat belt webbing jams or catches (entrapment hazard)
Seat belt webbing or mechanism jams, trapping occupant (child in this case). Webbing stuck and could not be released; had to be cut away to free occupant.
When: While vehicle in park
Symptoms owners cite: Seat belt webbing jams; Occupant becomes trapped in belt; Belt cannot be released by normal means
Repairs/costs cited: Seat belt had to be cut to free occupant
Synthesized from 17 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.