{"nhtsa_id":10194423,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-06-01","date":"2021-05-21","document_id":"SSM 49810","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL","mfr_system":null,"summary":"Some 2021 Mustang Mach-E vehicles may exhibit a buzzing noise from the IPC that changes with the brightness setting. This is a normal operating characteristic of the vehicle and replacement of the IPC and/or other parts is not recommended. If compared to like vehicles some variation may be noted and should be considered normal.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10194423-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10194423-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10194423","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"labels-manuals","name":"Labels and manuals","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":[]}