{"nhtsa_id":11021829,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-08-13","date":"2025-08-07","document_id":"08-254-25","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Radio Frequency Hub Module (RFHM) Updates Technicians may experience the following Diagnostic Trouble Code (DTC): ● B22A9-00 - ECU Internal Performance. NOTE: This DTC will be Active and there are no customer symptoms with this DTC. *This bulletin involves inspecting and possibly updating the RFHM with the latest available software and also possibly replacing the RFHM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021829-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021829-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11021829","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B22A9"],"topics":[],"vehicles":[{"make":"RAM","model":"3500","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_ram_3500"]}],"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":[]}