{"nhtsa_id":10034970,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-02-02","date":"2010-09-01","document_id":"SP-284-027","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"MACK TRUCK: ENGINE ECM AND ACM SOFTWARE UPDATES. ENHANCEMENTS ARE AVAILABLE FOR THE ENGINE CONTROL MODULE (ECM) AND AFTERTREATMENT CONTROL MODULE (ACM). DOES NOT APPLY TO MACK TRUCKS AUSTRALIA. MODELS MRU, LEU, GU, CHU, CXU. NO MODEL YEARS LISTED. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10034970","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"CHU","year_from":2006,"year_to":2010,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"CXU","year_from":2006,"year_to":2010,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"GU","year_from":2006,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"LEU","year_from":2007,"year_to":2010,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"MRU","year_from":2007,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"PINNACLE (CHU)","year_from":2011,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"PINNACLE (CXU)","year_from":2011,"year_to":2011,"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":[]}