# Service bulletin SSM 53509

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: 11016065
- Published by NHTSA: 2025\-03\-28
- Manufacturer's number: SSM 53509
- Manufacturer's date: 2025\-03\-18
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

Some 2025 Explorer vehicles built on or before 27\-Nov\-2024 may exhibit driver power door lock and auto start stop system inoperative with diagnostic trouble code \(DTC\) P166B in the gear shift module \(GSM\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016065-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016065-9999.pdf)

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

## Trouble codes named

P166B

## Vehicles listed

- 2025 FORD EXPLORER

JSON: [/v1/bulletins/11016065](/v1/bulletins/11016065)

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