{"nhtsa_id":11033341,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-06-03","date":"2026-05-30","document_id":"21-044-26","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Flash: Transmission Control Module (TCM) Updates Customers may experience one or more of the following: ● 3-2 shift coastdown bumps when coming to a stop. ● 3-2 shift coastdown tip-in bumps when coming to a stop and applying the accelerator pedal before coming to a complete stop. ● Poor upshift quality while driving normally This bulletin involves reprogramming the TCM with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033341-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033341-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033341","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"RAM","model":"1500","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_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":[]}