{"nhtsa_id":10209751,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-04-06","date":"2022-03-11","document_id":"SA-003-22d","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"Mazda3 and CX-30: Prior to February 8, 2022, some vehicles may store DTC U0300:57 (Body control module (BCM) internal malfunction) and cannot be erased after a BCM replacement or MDARS BCM software update (NOT with BCM update for SSPC5 or 4621B using MDRT). This is caused by a BCM-VCM software error. MX-30: Some MX-30 vehicles may store DTC U0300:57 (Body control module (BCM) internal malfunction) and cannot be erased after a BCM replacement or MDARS BCM software update. 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. *This SA will be updated with the newest repair information as it becomes available.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10209751-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10209751-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10209751","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":["U0300"],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-30","year_from":2020,"year_to":2021,"match":"exact","vehicle_ids":["2020_mazda_cx-30","2021_mazda_cx-30"]},{"make":"MAZDA","model":"MAZDA3","year_from":2019,"year_to":2021,"match":"exact","vehicle_ids":["2019_mazda_mazda3","2020_mazda_mazda3","2021_mazda_mazda3"]},{"make":"MAZDA","model":"MX-30 PHEV","year_from":2022,"year_to":2022,"match":"base","vehicle_ids":["2022_mazda_mx-30"]}],"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":[]}