{"nhtsa_id":10057176,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2015-04-23","date":"2014-12-01","document_id":"593-014-01","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL","mfr_system":null,"summary":"MACK TRUCKS: GRADE GRIPPER REPLACEMENT FOR TRUCK MODELS; MACK, CHU, CXU AND GU FOR THE FOLLOWING YEARS 2008-2015. THE FOLLOWING TRUCKS MAY ALSO EXPERIENCE SLOW RELEASE OF THE BRAKES. *LJ","document":null,"url":"https://open.wenmarpro.com/bulletins/10057176","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"CHU","year_from":2008,"year_to":2010,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"CHU","year_from":2013,"year_to":2015,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"PINNACLE (CHU)","year_from":2011,"year_to":2012,"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":[]}