{"vehicle":{"id":"2023_genesis_gv80","year":2023,"make":"Genesis","model":"GV80"},"code":"P0304","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":2,"bulletins":[{"nhtsa_id":11021791,"type":"service_campaign","type_name":"Service campaign","date_added":"2025-08-12","date":"2025-08-06","document_id":"25-01-051G TSB","mfr_campaign":"914G","component":"ENGINE","summary":"Certain G80 (RG3), GV70 (JK1/JK1A), and GV80 (JX1) vehicles equipped with Theta III 2.5L T-GDI engines may illuminate the Check Engine Light as a result of misfire DTCs P0300, P0301, P0302, P0303, or P0304 during cold start. This bulletin provides instructions for updating the Engine Control Module (ECM).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021791-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021791-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11021791"},{"nhtsa_id":11021790,"type":"service_campaign","type_name":"Service campaign","date_added":"2025-08-12","date":"2025-08-06","document_id":"25-01-051G DN","mfr_campaign":"914G","component":"ENGINE","summary":"Certain G80 (RG3), GV70 (JK1/JK1A), and GV80 (JX1) vehicles equipped with Theta III 2.5L T-GDI engine may illuminate the Check Engine Light as a result of misfire DTCs P0300, P0301, P0302, P0303, or P0304. The California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021790-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021790-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11021790"}],"url":"https://open.wenmarpro.com/makes/genesis/gv80/2023/bulletins?code=P0304"},"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/genesis/gv80/2023/codes/P0304","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."]}