{"nhtsa_id":11037292,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-09-11","date":"2026-09-11","document_id":"9D3 OL","mfr_campaign":"9D3","replaces":null,"component":"ENGINE; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Hyundai has become aware that your Hyundai Elantra equipped with a 2.0 ATK engine may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software intended only for Korean-built Elantra vehicles and may not meet specifications.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037292-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037292-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11037292","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"ELANTRA","year_from":2019,"year_to":2020,"match":"exact","vehicle_ids":["2019_hyundai_elantra","2020_hyundai_elantra"]}],"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":[]}