{"nhtsa_id":11037914,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-10-05","date":"2026-09-25","document_id":"T7276","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"This Temporary Repair Practice is being issued to recalibrate the engine control module (ECM) on certain B6.7, L9, X12 and X15 engines that have fault codes 3749 and/or 6463 that cannot be cleared with a service tool. This field action authorizes certified service locations to update the ECM calibration.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037914-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037914-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11037914","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"B6.7","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"L9","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"X12","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"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":[]}