# B1557 on the 2025 Ford Expedition

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.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name B1557

- [11019477](https://open.wenmarpro.com/bulletins/11019477), 2025-06-11: 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.
- [11017160](https://open.wenmarpro.com/bulletins/11017160), 2025-04-23: Some 2025 Expedition/Navigator vehicles may exhibit diagnostic trouble codes \(DTCs\) B144F:19, B144F:13, B1557:19, B1557:31 and/or B15E8:19 in the rear gate trunk module \(RGTM\) when a diagnostic self\-test is performed. If no other symptoms, DTCs, or issues are identified, no further action is required. Replacement and/or reprogramming of the RGTM will not resolve this condition.