{"nhtsa_id":10136223,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-07","date":"2018-03-01","document_id":"E232","mfr_campaign":null,"replaces":null,"component":"ENGINE; ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE","mfr_system":null,"summary":"Non Safety Campaign -Software update for PACCAR MX-13/MX-11 MY2017 Engines to correct the detection of reduced SCR (selective catalytic reduction) performance, which may result in an increase in tailpipe emissions. Update the engine software to RC5 or higher to resolve the issue.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10136223-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10136223-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10136223","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"exhaust-pipe","name":"Exhaust manifold, pipes and muffler","parent":"exhaust-emissions"},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"PACCAR","model":"PACCAR","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":[]}