{"nhtsa_id":11031329,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-15","date":"2026-04-08","document_id":"21-028-26","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ? P0826-00 - Up/Down Shift Sw","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031329-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031329-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031329","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0826"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_ram_2500"]},{"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":[]}