# Service bulletin 0818723

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: 10243227
- Published by NHTSA: 2023\-10\-02
- Manufacturer's number: 0818723
- Manufacturer's date: 2023\-08\-02
- NHTSA component: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

## NHTSA's summary

Flash: Radio Frequency Hub Module \(RFHM\) Update The customer may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code \(DTCs\): ? B1053\-64 RFHM \(Kin Communication\) \- Signal Plausibility Failure Set In The RF Hub. ? B1A7D\-2F Start Button \- Signal Erratic. Customers may also experience one or more of the following: ? Messages shown on the Instrument Panel Cluster \(IPC\): ? Service Passive Entry Vehicle will not Shut Off or Restart. ? To Shut Off Vehicle, See Vehicle Settings \(if the vehicle speed is lower than 4 KMH\) \(2.4 MPH\). ? Engine will not shut off. ? Lamp lit on IPC \(Fig. 1\) . This bulletin involves updating the RFHM with the latest available software.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10243227-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10243227-9999.pdf)

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

## Components

Equipment and accessories

## Trouble codes named

B1053, B1A7D

## Vehicles listed

- 2022 RAM PROMASTER

JSON: [/v1/bulletins/10243227](/v1/bulletins/10243227)

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