{"nhtsa_id":10189793,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-04-03","date":"2021-03-25","document_id":"TSB 21-2091","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Some 2021 Mustang Mach-E vehicles may exhibit the 12-volt battery becoming discharged while the vehicle is plugged in during the high voltage charging process. This may be due to the parameters in the powertrain control module (PCM). To correct the condition, follow the Service Procedure to reprogram various modules starting with the PCM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189793-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189793-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10189793","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"MUSTANG MACH E","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_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":[]}