{"nhtsa_id":11019907,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-07-01","date":"2025-06-27","document_id":"TSB_ELE390","mfr_campaign":"SA620","replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":"ELE","summary":"TECHNICAL SERVICE BULLETIN: SERVICE ACTION: SUNROOF OPERATION LOGIC IMPROVEMENT (SA620) - This bulletin supersedes TSB SA595 (December 2024) and outlines the procedure to update the Roof Control Module (RCM) software on certain 2025MY K4 (CL4) vehicles produced between September 19, 2024, through May 28, 2025, which may experience inoperative sunroof operation (open/close) due to a software logic error. The updated software includes improved logic to address this issue.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11019907-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11019907-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11019907","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"K4","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_kia_k4"]}],"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":[]}