{"nhtsa_id":11018259,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-05-14","date":"2025-05-09","document_id":"21-028-25 REV. A","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":"Transmission Control Module","summary":"\"Flash: Transmission Control Module (TCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also experience the following: ● Vehicle enters into limp home mode This bulletin involves inspecting the TCM software level and possibly reprogramming the TCM with the latest available software\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11018259-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11018259-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11018259","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P1DCD"],"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":[]}