{"nhtsa_id":10036935,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-04-20","date":"2010-11-01","document_id":"TB-284-021","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"MACK: ENGINE ECU REPROGRAMMING. THE MACK MP7 AND MP8 WITH MULTIPLE ENGINE ENHANCEMENTS WILL HAVE NEW SOFTWARE. THE EGR MASS FLOW, AND AFTERTREATMENT DOSER AND NOX SENSOR ARE INCLUDED IN THE ENHANCEMENT. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10036935","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"GU","year_from":2011,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"LEU","year_from":2011,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"MRU","year_from":2011,"year_to":2012,"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":[]}