{"nhtsa_id":11025811,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-12-01","date":"2025-11-18","document_id":"SSM 54388","mfr_campaign":null,"replaces":null,"component":"FUEL/PROPULSION SYSTEM","mfr_system":null,"summary":"Some 2021-2023 Mustang Mach-E vehicles equipped with nickel, cobalt and manganese (NCM) standard/extended range battery with minor feature codes HTHAD/HTHAE and 2022-2025 e-Transit vehicles equipped NCM standard range battery with minor feature codes HUKAL/HUKAA may require a high voltage battery module replacement. Technicians can now replace the affected battery module for high voltage batteries with a state of health (SOH) of 70% or higher. It is no longer necessary to replace the complete high voltage battery assembly for vehicles with 70% SOH or higher. Additionally, the battery health chart has been updated to display the actual battery SOH as a percentage and now requires the selection of checkboxes corresponding to the specific high voltage battery module(s) being replaced. After a high voltage battery module replacement and battery reinstallation, relaunch the Ford Diagnosis and Repair System (FDRS) \"BECM - Battery Health\" application which will prompt for confirmation of a successful repair.<br /><br /> To confirm a vehicle is built with a certain minor feature code, review the build information","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11025811-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11025811-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11025811","components":[{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"E-TRANSIT","year_from":2022,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"FORD","model":"MUSTANG MACH E","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_ford_mustang-mach-e","2022_ford_mustang-mach-e","2023_ford_mustang-mach-e"]}],"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":[]}