2020 Ford F-350 Super Duty: Power Train complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 54 owner complaints for the 2020 Ford F-350 Super Duty that list the power train component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11731728 (filed 04/16/2026): “This is a supplemental complaint to odi number 11730675 filed on april 16 2026. i am adding the following critical information: i am filing this complaint in relation to ford's nhtsa consent order regarding recall compliance. my 2020 f-350 vin [xxx] was built at kentucky truck plant in march 2020 —…”
- NHTSA complaint ODI #11730675 (filed 04/12/2026): “Vehicle experienced sudden, unexpected downshifting and loss of gear engagement while driving. on multiple occasions the transmission slipped out of gear without warning, including while attempting to pull into traffic, creating an immediate life-threatening safety hazard. vehicle was unable to main…”
- NHTSA complaint ODI #11725831 (filed 03/20/2026): “I am the owner of a 2020 ford f‑350 equipped with the 6.7l power stroke diesel engine. my vehicle is subject to an open safety recall, nhtsa 24v957, involving the high‑pressure fuel system. i have been informed by an authorized ford dealer that there is currently no effective repair remedy available…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Pro
Diagnosis needs a scan tool; repair or replacement needs a lift, transmission jack and the manufacturer's fluid fill/relearn procedure. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
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