{"nhtsa_id":10052560,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2013-08-16","date":"2013-06-17","document_id":"TIB-43-031","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"KENWORTH: SEE DOCUMENT SEARCH BUTTON SEARCH BUTTON FOR OWNER LETTER. DUE TO DEF DOSER NOT RESPONDING OR IS OUT OF FAULT ADJUSTMENT, THE COOLANT LINES (CROSSOVER EXHAUSTS) ARE ROUTED INCORRECTLY, IN SOME CHASSIS, AND MAY CAUSE ERROR CODES (P3859, P3569). NO MODELS OR MODEL YEARS LISTED. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10052560","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":["P3569","P3859"],"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":[]}