{"nhtsa_id":10081445,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-10-04","date":"2015-04-15","document_id":"FSB 513-001","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE; SERVICE BRAKES, ELECTRIC","mfr_system":null,"summary":"BRAKE ELECTRONIC CONTROL UNIT (ECU), REPROGRAMMING (MID 136) CERTAIN MACK CHU, CXU, AND GU TRUCKS EQUIPPED WITH THE BASIC ESP PACKAGE (ZMX-A1X), AND BUILT BETWEEN JANUARY 1, 2010 AND NOVEMBER 9, 2014, MAY ACTIVATE AN MID 136 ANTI-LOCK BRAKE SYSTEM (ABS) SID 66 FMI 7 OR BENDIX DTC 20-8 CODE WITHOUT ANY COMPONENT FAILURES, MECHANICAL FAILURES, OR SYSTEM MIS-WIRES. THE MID 136 CODE IS DUE TO AN ABS ELECTRONIC CONTROL UNIT (ECU) THRESHOLD SETTING. FOLLOW THE BRAKE ECU (MID 136) REPAIR AND REPROGRAMMING STEPS OUTLINED IN THIS FIELD SERVICE BULLETIN (FSB).","document":null,"url":"https://open.wenmarpro.com/bulletins/10081445","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"abs","name":"Anti-lock brakes","parent":"brakes"}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"CHU","year_from":2011,"year_to":2015,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"CXU","year_from":2011,"year_to":2015,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"GU","year_from":2011,"year_to":2015,"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":[]}