{"nhtsa_id":10206943,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-02-04","date":"2022-01-21","document_id":"SA-003/22","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE; EQUIPMENT","mfr_system":null,"summary":"Some vehicles may store DTC U0300:57 (Body control module (BCM) internal malfunction) after a BCM replacement or MDARS BCM software update (NOT with BCM update for SSPC5 or 4621B using MDRT) and the DTC cannot be erased. This is caused by a BCM-VCM software error. Mazda is aware of the issue and is working on a resolution. If there is an issue with this concern, Mazda recommends putting customer in a loaner vehicle at this time. •DO NOT perform BCM software update with MDARS until further notice, including CSP06 and CSP07. •This SA will be updated with the newest repair information as it becomes available.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10206943-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10206943-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10206943","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"body-control-module","name":"Body control module","parent":"electrical"}],"codes":["U0300"],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-30","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_mazda_cx-30"]},{"make":"MAZDA","model":"MAZDA3","year_from":2019,"year_to":2020,"match":"exact","vehicle_ids":["2019_mazda_mazda3","2020_mazda_mazda3"]}],"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":[]}