{"nhtsa_id":10076221,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-07-07","date":"2016-03-08","document_id":"SM1603","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"The intent of SM1603 is to provide service related information for buses equipped with the new 2016 Cummins ISB and ISL engine features announced in Dealer Memo CK15-06. This change ONLY affects Blue Bird buses with Cummins diesel engines that are EPA/CARB certified on highway built by Cummins on January1, 2016 or later (Blue Bird production date 01/18/2016).","document":null,"url":"https://open.wenmarpro.com/bulletins/10076221","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BLUE BIRD","model":"BLUE BIRD","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":[]}