{"nhtsa_id":10243227,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-10-02","date":"2023-08-02","document_id":"0818723","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.","mfr_system":null,"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.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10243227-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10243227-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10243227","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":["B1053","B1A7D"],"topics":[],"vehicles":[{"make":"RAM","model":"PROMASTER","year_from":2022,"year_to":2022,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"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.","attribution":[]}