{"nhtsa_id":10120537,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-10-25","date":"2017-09-18","document_id":"FSB 846-003rev","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"MACK Trucks has determined that certain 2013 through 2015 year model CHU, CXU, GU and MRU trucks equipped with a MP8 model engine may be equipped with an improperly functioning on-board emission-related diagnostic system.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10120537-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10120537-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10120537","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"MACK","year_from":null,"year_to":null,"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":[]}