{"nhtsa_id":10206365,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-01-08","date":"2021-12-22","document_id":"21-EM-012H","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS","mfr_system":null,"summary":"Certain vehicles listed below equipped with 2.5T turbo engines may have a misassembled check valve for the PCV (Positive Crankcase Ventilation) system, resulting in engine oil entering the intake and contaminating the air cleaner. This bulletin describes the procedure to clean the air intake system and replace the PCV check valve and air cleaner.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10206365-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10206365-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10206365","components":[{"id":"engine","name":"Engine","parent":null},{"id":"cooling-system","name":"Cooling system","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"SANTA CRUZ","year_from":2022,"year_to":2022,"match":"exact","vehicle_ids":["2022_hyundai_santa-cruz"]},{"make":"HYUNDAI","model":"SANTA FE","year_from":2021,"year_to":2022,"match":"exact","vehicle_ids":["2021_hyundai_santa-fe","2022_hyundai_santa-fe"]},{"make":"HYUNDAI","model":"SONATA","year_from":2021,"year_to":2022,"match":"exact","vehicle_ids":["2021_hyundai_sonata","2022_hyundai_sonata"]}],"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":[]}