{"nhtsa_id":11030791,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-06","date":"2026-03-19","document_id":"SSM 54674","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"For 2021-2026 vehicles equipped with the 10R80 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford Diagnosis and Repair System (FDRS). This test utilizes the pressure and vacuum transducer (PVT) when available. The Workshop Manual (WSM) has been updated under Section 307-01 > Diagnosis and Testing to include this procedure. The new test improves the accuracy of detecting leaks within transmission fluid circuits and replaces the previous air check method.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030791-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030791-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11030791","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"EXPEDITION","year_from":2021,"year_to":2026,"match":"exact","vehicle_ids":["2021_ford_expedition","2022_ford_expedition","2023_ford_expedition","2024_ford_expedition","2025_ford_expedition","2026_ford_expedition"]},{"make":"FORD","model":"EXPLORER","year_from":2021,"year_to":2026,"match":"exact","vehicle_ids":["2021_ford_explorer","2022_ford_explorer","2023_ford_explorer","2024_ford_explorer","2025_ford_explorer","2026_ford_explorer"]},{"make":"FORD","model":"F-150","year_from":2021,"year_to":2026,"match":"exact","vehicle_ids":["2021_ford_f-150","2022_ford_f-150","2023_ford_f-150","2024_ford_f-150","2025_ford_f-150","2026_ford_f-150"]},{"make":"FORD","model":"MUSTANG","year_from":2021,"year_to":2026,"match":"exact","vehicle_ids":["2021_ford_mustang","2022_ford_mustang","2023_ford_mustang","2024_ford_mustang","2025_ford_mustang","2026_ford_mustang"]},{"make":"FORD","model":"RANGER","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_ford_ranger","2022_ford_ranger","2023_ford_ranger"]},{"make":"FORD","model":"TRANSIT","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_ford_transit","2022_ford_transit","2023_ford_transit","2024_ford_transit","2025_ford_transit"]},{"make":"LINCOLN","model":"NAVIGATOR","year_from":2023,"year_to":2026,"match":"exact","vehicle_ids":["2023_lincoln_navigator","2024_lincoln_navigator","2025_lincoln_navigator","2026_lincoln_navigator"]}],"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":[]}