{"nhtsa_id":11029666,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-03-05","date":"2026-02-17","document_id":"08-071-26","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Telematics Box Module Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● B1560 - 11 Cellular Antenna 1 - short to ground. ● B1561 - 11 Cellular Antenna 2 - short to ground. ● B1562 - 14 GPS Antenna short to ground or open. ● B22A9 - 96 ECU internal performance-component internal failure. Customers may also experience the following: ● \"Uconnect Box Required Service\" Message in Radio Display. This bulletin involves reprogramming the TBM with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029666-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029666-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11029666","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B1560","B1561","B1562","B22A9"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_ram_2500"]},{"make":"RAM","model":"3500","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_ram_3500"]},{"make":"RAM","model":"4500","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_ram_4500"]},{"make":"RAM","model":"5500","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_ram_5500"]}],"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":[]}