{"nhtsa_id":11023364,"type":"service_campaign","type_name":"Service campaign","date_added":"2025-09-26","date":"2025-09-26","document_id":"NCU - 2025090010","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Issue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the Electronic Ignition Lock control unit coding does not correspond to current series production configuration. As a result, battery management could be affected and cause low battery voltage. A 12V battery message may appear in the instrument cluster after the vehicle has been dormant for an extended period of time. Remedy MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will SCN code the Electronic Ignition Lock control unit. The new SCN coding improves battery management, improving the efficiency of the 12V electrical system.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11023364-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11023364-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11023364","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"AMG GT55","year_from":2024,"year_to":2025,"match":"base","vehicle_ids":["2024_mercedes-benz_amg-gt","2025_mercedes-benz_amg-gt"]},{"make":"MERCEDES-BENZ","model":"AMG GT63","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_mercedes-benz_amg-gt"]},{"make":"MERCEDES-BENZ","model":"AMG GT63","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_mercedes-benz_amg-gt"]},{"make":"MERCEDES-BENZ","model":"AMG GT63 S E","year_from":2025,"year_to":2025,"match":"base","vehicle_ids":["2025_mercedes-benz_amg-gt"]},{"make":"MERCEDES-BENZ","model":"AMG SL43","year_from":2023,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG SL55","year_from":2022,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG SL55 4MATIC+","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG SL63","year_from":2022,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG SL63 4MATIC+","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG SL63 S E","year_from":2025,"year_to":2025,"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":[]}