{"nhtsa_id":11019683,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-06-24","date":"2025-06-18","document_id":"25-EM-004H TSB","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Certain Elantra N (CN7 N) vehicles may experience a rattle and/or buzzing sound coming from the rear muffler assembly at idle or on deceleration. Follow the service procedure below to replace the spring located in the active valve exhaust system to resolve the concern.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11019683-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11019683-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11019683","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"ELANTRA N","year_from":2022,"year_to":2022,"match":"exact","vehicle_ids":["2022_hyundai_elantra-n"]}],"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":[]}