{"nhtsa_id":10199108,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-07-09","date":"2021-06-03","document_id":"21-FL-002H","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Certain 2011 2015 Sonata Hybrid vehicles (YF HEV) may experience a check engine light illumination with an Evaporative System (EVAP) leakage related DTC P0442 Small Leak, P0455 Large Leak, or P0456 Very Small Leak stored. Salt particulate deposits can form inside the Natural Vacuum Leak Detection (NVLD) sensor, which may cause intermittent operation, prompting the check engine light illumination and DTC P0442, P0455, or P0456.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10199108-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10199108-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10199108","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P0442","P0455","P0456"],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"SONATA HYBRID","year_from":2011,"year_to":2015,"match":"base","vehicle_ids":["2011_hyundai_sonata","2012_hyundai_sonata","2013_hyundai_sonata","2014_hyundai_sonata","2015_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":[]}