{"nhtsa_id":11026666,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-12-17","date":"2025-12-10","document_id":"08-219-25 REV. A","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Telematics Box Module (TBM) Firmware Over The Air (FOTA) Software Updating from 5.39 to 5.65 *Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● B2206-00 - Current VIN Missing / Mismatch.** Customers may experience the following: ● **SOS Unavailable message pops up on radio during a remote start event due to TBM DTC B2206-00. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The TBM software will be updated from 5.39.1 to 5.65 software level.Telematics Box Module (TBM) Firmware Over The Air (FOTA) Software Updating from 5.39 to 5.65 *Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● B2206-00 - Current VIN Missing / Mismatch.** Customers may experience the following: ● **SOS Unavailable message pops up on radio during a remote start event due to TBM DTC B2206-00. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The TBM software will be updated from 5.39.1 to 5.65 software level.Telematics Box Module (TBM) Firmware Over The Air (FOTA) Software Updating from 5.39 to 5.65 *Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● B2206-00 - Current VIN Missing / Mismatch.** Customers may experience the following: ● **SOS Unavailable message pops up on radio during a remote start event due to TBM DTC B2206-00. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The TBM software will be updated from 5.39.1 to 5.65 software level.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026666-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026666-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11026666","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B2206"],"topics":[],"vehicles":[{"make":"RAM","model":"1500","year_from":2022,"year_to":2023,"match":"exact","vehicle_ids":["2022_ram_1500","2023_ram_1500"]},{"make":"RAM","model":"2500","year_from":2022,"year_to":2023,"match":"exact","vehicle_ids":["2022_ram_2500","2023_ram_2500"]},{"make":"RAM","model":"3500","year_from":2022,"year_to":2023,"match":"exact","vehicle_ids":["2022_ram_3500","2023_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":[]}