{"nhtsa_id":10237578,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-06-07","date":"2023-06-05","document_id":"TSB 23-2144","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Some 2023 Bronco/Explorer/Aviator vehicles equipped with a 10R60 automatic transmission built on 8-Dec-2022 and through 22-Dec-2022 may exhibit a whine noise during coast down from 25 mph (40 km/h). Vehicles built on 6-Feb-2023 and through 1-Mar-2023 may exhibit a whine noise during acceleration in 1st gear. These conditions may be caused by the machining of the No. 4 shell and sun gear. To correct the conditions, follow the Service Procedure to replace No. 4 shell and sun gear.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10237578-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10237578-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10237578","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"BRONCO","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_ford_bronco"]},{"make":"FORD","model":"EXPLORER","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_ford_explorer"]},{"make":"LINCOLN","model":"AVIATOR","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_lincoln_aviator"]}],"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":[]}