{"nhtsa_id":10110379,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-04","date":"2017-03-28","document_id":"PI 0877","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL","mfr_system":null,"summary":"On some trucks with the Telematics Gateway (TGW) system, the TGW control unit may not correctly communicate with the vehicle systems after restarting. The behavior associated with this issue will be a high number of MID 140 PSID 239 FMI 12 faults when viewed in tech tool. The faults occur when the TGW control unit fails to properly restart and falls into a restart loop preventing the control unit from communicating with the instrument cluster on the J1587 datalink. This is due to a software issue in the TGW control unit that manages how the unit handles failed restarts.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10110379-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10110379-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10110379","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"CHU","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"CXU","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"GU","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"TD","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":[]}