{"nhtsa_id":11020592,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-07-09","date":"2025-07-02","document_id":"TSB_ELE388","mfr_campaign":"SA618","replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":"ELE","summary":"TECHNICAL SERVICE BULLETIN: SERVICE ACTION: WPC DISCHARGE LOGIC IMPROVEMENT (SA618) - This bulletin provides instructions for updating the Wireless Power Charging ‘WPC’ system software on certain 2024MY EV9 (MV1) vehicles produced from November 19, 2023, through May 5, 2024. The affected vehicles may experience the 12V battery drained while the vehicle is parked due to the wireless charging unit remaining temporarily active, potentially resulting in low battery voltage and no-start condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020592-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020592-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11020592","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"EV9","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_kia_ev9"]}],"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":[]}