{"nhtsa_id":11033947,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-06-18","date":"2026-06-13","document_id":"18-035-26 REV. A","mfr_campaign":null,"replaces":null,"component":"ENGINE; POWER TRAIN","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician must find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● P0300 - Multiple Cylinder Misfire. ● P0301 - Cylinder 1 Misfire. ● P0302 - Cylinder 2 Misfire. ● P0303 - Cylinder 3 Misfire. ● P0304 - Cylinder 4 Misfire. ● P0305 - Cylinder 5 Misfire. ● P0306 - Cylinder 6 Misfire. ● P0307 - Cylinder 7 Misfire. ● P0308 - Cylinder 8 Misfire. ● P0420 - Catalyst System Efficiency Below Threshold Bank 1. ● P0430 - Catalyst System Efficiency Below Threshold Bank 2. Customers may comment on or experience the following: ● A rough idle condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033947-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033947-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033947","components":[{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0300","P0301","P0302","P0303","P0304","P0305","P0306","P0307","P0308","P0420","P0430"],"topics":[],"vehicles":[{"make":"DODGE","model":"CHALLENGER","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_dodge_challenger"]}],"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":[]}