{"nhtsa_id":11033923,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-06-17","date":"2026-06-13","document_id":"T-024","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"The repair procedure has been updated to include diagnostic steps.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033923-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033923-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033923","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T280","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_kenworth_t280","2026_kenworth_t280"]},{"make":"KENWORTH","model":"T380","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_kenworth_t380","2026_kenworth_t380"]},{"make":"KENWORTH","model":"T480","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_kenworth_t480","2026_kenworth_t480"]},{"make":"KENWORTH","model":"T680","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_kenworth_t680","2026_kenworth_t680"]},{"make":"KENWORTH","model":"T880","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_kenworth_t880","2026_kenworth_t880"]},{"make":"KENWORTH","model":"W990","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_kenworth_w990","2026_kenworth_w990"]},{"make":"PETERBILT","model":"537","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_peterbilt_537","2026_peterbilt_537"]},{"make":"PETERBILT","model":"548","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_peterbilt_548","2026_peterbilt_548"]},{"make":"PETERBILT","model":"567","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_peterbilt_567","2026_peterbilt_567"]},{"make":"PETERBILT","model":"579","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_peterbilt_579","2026_peterbilt_579"]},{"make":"PETERBILT","model":"589","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_peterbilt_589","2026_peterbilt_589"]}],"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":[]}