{"nhtsa_id":10078421,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-08-05","date":"2016-04-01","document_id":"SB-16-NA-105","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT ADAPTIVE/MOBILITY","mfr_system":null,"summary":"SOME TECHNICIANS MAY FIND DTC U184A - LOST COMMUNICATION WITH BODY CONTROL MODULE (BCM) SET OR STORED IN HISTORY. THIS CONDITION MAY BE DUE TO A FALSE SETTING OF THE DTC.","document":null,"url":"https://open.wenmarpro.com/bulletins/10078421","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":["U184A"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2016,"year_to":2016,"match":"base","vehicle_ids":["2016_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO HD","year_from":2016,"year_to":2016,"match":"base","vehicle_ids":["2016_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 3500","year_from":2016,"year_to":2016,"match":"base","vehicle_ids":["2016_gmc_sierra"]},{"make":"GMC","model":"SIERRA HD","year_from":2016,"year_to":2016,"match":"base","vehicle_ids":["2016_gmc_sierra"]}],"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":[]}