{"nhtsa_id":10201592,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-09-28","date":"2021-09-14","document_id":"SSM 50115","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY","mfr_system":null,"summary":"Some 2021 F-Super Duty vehicles may exhibit harsh or delayed engagement/shift concerns. Most concerns may be addressed with the PCM/TCM Transmission Accelerated Main Control Break In Routine. Refer to Workshop Manual (WSM), Section 307-01, DTC Chart and/or Diagnosis By Symptom to identify the clutch(s) to be cycled. This routine cycles the shift solenoids and clutch control valves to remove contamination that may be sticking the valves and must be performed along with an adaptive learning drive cycle before attempting internal service. Although this routine was originally developed for low mileage vehicles, it has proven effective for resolving many shift and engagement symptoms across the life of the vehicle. For claiming, use causal part 7A100 and applicable labor operations in Section 7 of the Service Labor Time Standards Manual.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10201592-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10201592-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10201592","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F-250 SD","year_from":2021,"year_to":2022,"match":"base","vehicle_ids":["2021_ford_f-250","2022_ford_f-250"]},{"make":"FORD","model":"F-350 SD","year_from":2021,"year_to":2022,"match":"base","vehicle_ids":["2021_ford_f-350","2022_ford_f-350"]},{"make":"FORD","model":"F-450 SD","year_from":2021,"year_to":2022,"match":"base","vehicle_ids":["2021_ford_f-450","2022_ford_f-450"]},{"make":"FORD","model":"F-550 SD","year_from":2021,"year_to":2022,"match":"base","vehicle_ids":["2021_ford_f-550","2022_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":[]}