{"nhtsa_id":10083068,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-10-20","date":"2015-02-13","document_id":"FSB 253-002","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"ENGINE BRAKE LOSS. CERTAIN EURO 4 MACK VEHICLES BUILT FROM JANUARY 14, 2010 TO FEBRUARY 15, 2014 MAY EXPERIENCE ENGINE BRAKE LOSS IN TOP GEAR. CHECK THE ENGINE ECU DATASET 2 PART NUMBER AND COMPARE TO THE CHART BELOW.","document":null,"url":"https://open.wenmarpro.com/bulletins/10083068","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"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":[]}