2020 Ford F-350 SD electrical system problems

10 owner complaints filed with NHTSA name the electrical system on the 2020 Ford F-350 SD — 5% of all complaints for this model year.

Electrical System complaints

share of all complaints

—

median reported incident mileage

0 / 1

crash / fire reports

What owners report

“While towing any trailer with electric brakes it appears the integrated trailer brake controller is briefly applying trailer brakes unexpectedly. Very brief but very hard, resulting in an extreme rearward pull on the truck. It happens at exactly 60 minute intervals, at any speed, uphill, downhill…”
filed Jul 8, 2026
“I am the issues as the recalls for the 2023 f350 The Problem: The Integrated Trailer Module (ITRM/ITM) may lose communication with the vehicle when it starts up, resulting in a loss of trailer brake function, turn signals, and stop lamps.”
filed Jun 9, 2026

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

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