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U0100 on the 2024 Ford F-550

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

Bulletins for this model year that name U0100
SSM 543332025-11-04. Service bulletin. Some 2023-2025 F-Super Duty vehicles may exhibit a no crank/no start or intermittent no crank/no start with multiple warning indicators and DTC U0100 stored in the anti-lock brake system (ABS), audio front control module (ACM) and power steering control module (PSCM). This may be due to an incorrectly tightened ground 113 (G113). Inspect G113 for proper connection and tighten to 12 Nm (8.9 ft-lb). If the condition remains after tightening G113, perform normal diagnostics outside of this article. Refer to Workshop Manual, Section 303-06 Starting System. For claiming, use causal part 12A581 and labor operations 12650D and 12650D45WR of the Service Labor Time Standards (SLTS) Manual.
SSM 541732025-09-02. Service bulletin. Some 2023-2025 F-Super Duty vehicles may exhibit a no crank/no start or intermittent no crank/no start with multiple warning indicators and DTC U0100 stored in the anti-lock brake system (ABS), audio front control module (ACM) and power steering control module (PSCM). This may be due to an incorrectly tightened ground 113 (G113). Inspect G113 for proper connection and tighten to 12 Nm (8.9 ft-lb). If the condition remains after tightening G113, continue with normal diagnostics. Refer to Workshop Manual, Section 303-06 Starting System outside of this article. For claiming, use causal part 12A581 and labor operations 12650D and 12650D45WD.
SSM 539942025-07-02. Service bulletin. Some 2023-2025 F-Super Duty vehicles may exhibit a no crank/no start with diagnostic trouble code (DTC) U0100 in various modules. This condition may be due to the ground connection at G113. Inspect G113 for proper connection and tighten to 12 +/- 1.8 Nm. If condition remains after tightening G113, continue with normal diagnostics. Refer to Workshop Manual, Section 303-06 Starting System.

3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.