{"nhtsa_id":11025529,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-11-13","date":"2025-11-06","document_id":"TSB 25-2549","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ELECTRICAL SYSTEM","mfr_system":null,"summary":"This article supersedes TSB 25-2119 to update the vehicles affected, parts list, and Service Procedure. Some of the vehicles listed in the Model statement above may exhibit an incorrectly illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0420 and/or P0430 stored in the powertrain control module (PCM). This may be due to the software in the PCM. This condition does not affect vehicle drivability or durability.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11025529-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11025529-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11025529","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0420","P0430"],"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":[]}