{"nhtsa_id":10198611,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-07-01","date":"2021-06-17","document_id":"21B03-S4","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"In all of the affected vehicles, a distressed No. 1 planetary needle bearing inside the ring gear assembly will generate contamination that may produce rough shifts. A wrench light is likely to come on, and the transmission may go into safe mode and only operate in seventh gear. As damage progresses, the transmission may only be capable of limited vehicle speed or may not engage in forward or reverse.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198611-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198611-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10198611","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F-250 SD","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_ford_f-250"]},{"make":"FORD","model":"F-350 SD","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_ford_f-350"]},{"make":"FORD","model":"F-450 SD","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_ford_f-450"]},{"make":"FORD","model":"F-550 SD","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_ford_f-550"]},{"make":"FORD","model":"F-600 SD","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_ford_f-600"]}],"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":[]}