{"nhtsa_id":10238649,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-07-05","date":"2023-06-06","document_id":"C2622","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This campaign enables authorized repair locations to recalibrate the Engine Control Module on certain X15 CM2350 x114B and X116B engines to the latest revision. This calibration update may improve the performance of the aftertreatment and the on-board diagnostics system.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238649-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238649-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10238649","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"X15","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":[]}