{"nhtsa_id":11015821,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-03-21","date":"2025-03-13","document_id":"B640325","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Check Engine Light is illuminated, check control message indicates “bring in for service”. The faultsthemselves and the Malfunction Indicator Lamp (MIL) have no functional effect on the vehicle. There are multiple missing message fault codes (DTC) stored in the integrated automatic heating/airconditioning system (IHKA) control unit. These faults may include: E71458 - AC-LIN: Message EKMV20 E71459 - AC-LIN: Message EDH NOTE: These faults are secondary message faults and may not show up when performing the vehicle test.They will show up when looking at the operation report.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11015821-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11015821-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11015821","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"XM","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_bmw_xm","2024_bmw_xm"]}],"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":[]}