{"nhtsa_id":10083499,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-10-25","date":"2016-02-06","document_id":"FSB 873-016","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT","mfr_system":null,"summary":"SOME MACK SLEEPER MODELS MAY EXPERIENCE ISSUES WITH FLUCTUATION OF BUNK LIMATE UNIT AIR TEMPERATURE. THE FLUCTUATION MAY BE THE RESULT OF CONSTANT MOVEMENT OF THE BLEND AIR DOOR.","document":null,"url":"https://open.wenmarpro.com/bulletins/10083499","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"MACK","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":[]}