{"nhtsa_id":10163639,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-08-12","date":"2019-07-16","document_id":"ATC2188","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This In-Shop campaign addresses the DPF plugging concerns on certain X12 CM2350 X119B engines. These failures are being experienced in coach application units, with operating conditions similar to that seen in transit applications. The fault codes put the unit into derate. A calibration may correct the condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10163639-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10163639-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10163639","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"X12","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":[]}