{"vehicle":{"id":"2019_dodge_journey","year":2019,"make":"Dodge","model":"Journey"},"code":"P0420","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":1,"bulletins":[{"nhtsa_id":11034359,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-07-02","date":"2026-06-25","document_id":"18-063-26","mfr_campaign":null,"component":"ENGINE; POWER TRAIN","summary":"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0420 - Catalyst System Efficiency Below Threshold Bank 1. ● P0430 - Catalyst System Efficiency Below Threshold Bank 2. Customers may also comment on the following: ● Vehicle fails emissions inspection testing This bulletin involves reprogramming the PCM with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034359-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034359-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11034359"}],"url":"https://open.wenmarpro.com/makes/dodge/journey/2019/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/dodge/journey/2019/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."]}