{"vehicle":{"id":"2021_hyundai_sonata","year":2021,"make":"Hyundai","model":"Sonata"},"code":"P0401","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":1,"bulletins":[{"nhtsa_id":10241875,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-09-06","date":"2023-08-21","document_id":"23-EE-009H","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING","summary":"This bulletin provides warranty procedure for EGR Valve replacement related to DTC P0401 EGR Flow Insufficient on 2020 and 2021MY Sonata (DN8a) equipped with 2.5 GDI Vehicles.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10241875-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10241875-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10241875"}],"url":"https://open.wenmarpro.com/makes/hyundai/sonata/2021/bulletins?code=P0401"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/hyundai/sonata/2021/codes/P0401","note":"The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}