{"nhtsa_id":11026668,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-12-17","date":"2025-12-10","document_id":"08-381-25 REV. A","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Telematics Box Module (TBM) 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 involves reprogramming the TBM with the latest available software.Telematics Box Module (TBM) 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 involves reprogramming the TBM with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026668-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026668-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11026668","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B2206"],"topics":[],"vehicles":[{"make":"RAM","model":"1500","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_ram_1500"]}],"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":[]}