{"nhtsa_id":10169988,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-01-08","date":"2019-12-20","document_id":"SSM 48425","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Some 2020 F-Super Duty vehicles equipped with a 10R140 transmission may exhibit harsh upshifts between 1st and 5th gears. For vehicles with less than 200 miles (320 km) on the odometer, these harsh upshifts may be due to the transmission adaptive strategy not being fully adapted. The harsh upshifts are not detrimental to transmission operation or durability and upshift quality may improve as the vehicle is driven. If the vehicle does not have any illuminated warning indicators or diagnostic troubles codes (DTCs), do not perform any repairs at this time. Engineering is investigating. Monitor OASIS for updates.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169988-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169988-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10169988","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F-250 SD","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_ford_f-250"]},{"make":"FORD","model":"F-350 SD","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_ford_f-350"]},{"make":"FORD","model":"F-450 SD","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_ford_f-450"]},{"make":"FORD","model":"F-550 SD","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_ford_f-550"]}],"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":[]}