{"vehicle":{"id":"2020_subaru_outback","year":2020,"make":"Subaru","model":"Outback"},"code":"P0420","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":2,"bulletins":[{"nhtsa_id":10246083,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-12-05","date":"2023-11-07","document_id":"09-110-23R","mfr_campaign":null,"component":"EQUIPMENT; ENGINE AND ENGINE COOLING","summary":"This Service Information Bulletin announces diagnostic service procedures to be followed when DTC P0420 (Catalyst System Efficiency Below Threshold Bank 1) is detected by the Engine Control Module (ECM).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10246083-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10246083-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10246083"},{"nhtsa_id":10244906,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-11-06","date":"2023-10-09","document_id":"09-110-23","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING; EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR","summary":"This Service Information Bulletin announces diagnostic service procedures to be followed when DTC P0420 (Catalyst System Efficiency Below Threshold Bank 1) is detected by the Engine Control Module (ECM). If DTC P0420 is found to be stored in the ECM, follow the diagnostic procedures outlined below.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244906-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244906-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10244906"}],"url":"https://open.wenmarpro.com/makes/subaru/outback/2020/bulletins?code=P0420"},"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/subaru/outback/2020/codes/P0420","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."]}