{"nhtsa_id":10212401,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-05-31","date":"2022-03-11","document_id":"1804922","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY","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 the following (DTC): P0441- EVAP Purge System Performance. The customer may comment on one or more of the following: Abnormal Engine noise heard periodically. This noise is caused by Variable Valve Timing (VVT) cleaning cycle. A misfire condition with no Malfunction Indicator Lamp (MIL) illuminationor Diagnostic Trouble Codes (DTCs) set. In addition, the following software enhancements are available: Updates to include misfire DTCs.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10212401-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10212401-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10212401","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":["P0441"],"topics":[],"vehicles":[{"make":"JEEP","model":"WRANGLER","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_jeep_wrangler"]}],"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":[]}