{"nhtsa_id":11020875,"type":"service_campaign","type_name":"Service campaign","date_added":"2025-07-24","date":"2025-07-18","document_id":"NCU - 2025070003","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the 48V battery control unit software might not meet current production specifications. In rare cases, the engine malfunction indicator lamp might not illuminate when a diagnostic fault condition is present. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the 48V battery control unit software on affected vehicles. Affected customers will be notified via in-vehicle notification or First-Class letter to have the update performed on their vehicle.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020875-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020875-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11020875","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"AMG CLS53","year_from":2019,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG E53","year_from":2019,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG E63S","year_from":2019,"year_to":2019,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG E63S","year_from":2021,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLE53","year_from":2021,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLE63 S","year_from":2021,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLS63","year_from":2019,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GT43","year_from":2020,"year_to":2021,"match":"base","vehicle_ids":["2020_mercedes-benz_amg-gt","2021_mercedes-benz_amg-gt"]},{"make":"MERCEDES-BENZ","model":"AMG GT53","year_from":2019,"year_to":2021,"match":"base","vehicle_ids":["2019_mercedes-benz_amg-gt","2020_mercedes-benz_amg-gt","2021_mercedes-benz_amg-gt"]},{"make":"MERCEDES-BENZ","model":"AMG GT63","year_from":2019,"year_to":2021,"match":"base","vehicle_ids":["2019_mercedes-benz_amg-gt","2020_mercedes-benz_amg-gt","2021_mercedes-benz_amg-gt"]},{"make":"MERCEDES-BENZ","model":"AMG GT63S","year_from":2019,"year_to":2021,"match":"base","vehicle_ids":["2019_mercedes-benz_amg-gt","2020_mercedes-benz_amg-gt","2021_mercedes-benz_amg-gt"]},{"make":"MERCEDES-BENZ","model":"CLS 450","year_from":2019,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"E 300","year_from":2019,"year_to":2019,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"E 350","year_from":2020,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"E 450","year_from":2019,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLE 350","year_from":2019,"year_to":2021,"match":null,"vehicle_ids":[]}],"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":[]}