{"nhtsa_id":10076120,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-07-07","date":"2015-11-05","document_id":"E134","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; ENGINE","mfr_system":null,"summary":"Programming Engine and Aftertreatment Software with DAVIE4 Vehicle requiring engine or aftertreatment software updated using DAVIE4 All MX engine or aftertreatment software files must to be processed through PACCAR Engine Pro (PEP) prior to programming with DAVIE4.","document":null,"url":"https://open.wenmarpro.com/bulletins/10076120","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"KENWORTH","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":[]}