{"nhtsa_id":11036456,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-08-28","date":"2026-08-27","document_id":"B611626","mfr_campaign":"0061890900","replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"In vehicles equipped with the Roof Function Center “FZD‑21” variant, a quiescent‑current violation mayoccur if the system fails to enter sleep mode. When this sleep error is present, a remote software upgrade(RSU) may be aborted and the FZD can become degraded. The following Check Control Messages (CCMs) may be displayed: “Energy Management — Increased Energy Consumption While Parked.” “Software Upgrade Failed — Workshop Visit Required.”","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036456-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036456-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11036456","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"IX","year_from":2022,"year_to":2024,"match":"exact","vehicle_ids":["2022_bmw_ix","2023_bmw_ix","2024_bmw_ix"]}],"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":[]}