{"nhtsa_id":10187697,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-03-01","date":"2020-12-10","document_id":"18-106-20","mfr_campaign":null,"replaces":null,"component":"ENGINE; EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find 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 describe the following: Hearing a pre-detonation noise (Spark Knock) sound in the engine during acceleration.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10187697-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10187697-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10187697","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"transmission-control-module","name":"Transmission control module","parent":"powertrain"}],"codes":["P0420","P0430"],"topics":[],"vehicles":[{"make":"DODGE","model":"CHALLENGER","year_from":2019,"year_to":2019,"match":"exact","vehicle_ids":["2019_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":[]}