# Service bulletin SSM 53643

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11017160
- Published by NHTSA: 2025\-04\-23
- Manufacturer's number: SSM 53643
- Manufacturer's date: 2025\-04\-15
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11017160-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11017160-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Trouble codes named

B144F, B1557, B15E8

## Vehicles listed

- 2025 FORD EXPEDITION
- 2025 LINCOLN NAVIGATOR

JSON: [/v1/bulletins/11017160](/v1/bulletins/11017160)

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