{"nhtsa_id":11026429,"type":"service_campaign","type_name":"Service campaign","date_added":"2025-12-05","date":"2025-11-14","document_id":"FS016","mfr_campaign":"FS016","replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Campaign Certain chassis equipped with an Eaton Endurant 12-speed transmission have Mechatronic Transmission Module (MTM) rail cylinder cap screws that could become loose. This may cause the transmission not to shift and the transmission service lamp to illuminate. Repair procedure is now available.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026429-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026429-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11026429","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T680","year_from":2022,"year_to":2023,"match":"exact","vehicle_ids":["2022_kenworth_t680","2023_kenworth_t680"]},{"make":"KENWORTH","model":"W990","year_from":2022,"year_to":2023,"match":"exact","vehicle_ids":["2022_kenworth_w990","2023_kenworth_w990"]}],"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":[]}