{"nhtsa_id":10084606,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-11-22","date":"2014-05-23","document_id":"T1379A","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; EQUIPMENT","mfr_system":null,"summary":"THIS TEMPORARY REPAIR PRACTICE ADDRESSES FAULT CODE 3569 OCCURANCES ON ENGINES IN ALL PETERBILT VEHICLES WITH A PARTICULAR EXHAUST/AFTERTREATMENT CONFIGURATION. THIS ACTION WILL MITIGATE FAILURES CAUSED BY UREA CRYSTALLIZATION INSIDE THE DIESEL EXHAUST FLUID (DEF) DOING VALVE. THIS IS A REVISION TO A PREVIOUS COMMUNICATION.","document":null,"url":"https://open.wenmarpro.com/bulletins/10084606","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISX12","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISX15","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"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":[]}