June 4, 2025 Service bulletin

Diagnostic trouble code (DTC) B1557:31 in the rear gate trunk module (RGTM) when a diagnostic self-test is...

Ford technical service bulletin SSM 53867 for 2025 Ford Expedition and 2025 Lincoln Navigator.

Bulletin number: SSM 53867
Component: Structure: body
Summary: Some 2025 Expedition/Navigator vehicles may exhibit diagnostic trouble code (DTC) B1557:31 in the rear gate trunk module (RGTM) when a diagnostic self-test is performed. If no other symptoms, DTCs or conditions are identified, no further action is required. Replacement and/or reprogramming of the RGTM will not resolve this condition.

Owners of these vehicles have filed 3 complaints in the body category.

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