{"nhtsa_id":10078727,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-08-16","date":"2016-04-19","document_id":"PIT-5389-A","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS FOR DIAGNOSING THE CONCERN. THE VEHICLE MAY BE UNABLE TO CONNECT TO ONSTAR USING THE WHITE, BLUE OR RED ONSTAR BUTTONS.","document":null,"url":"https://open.wenmarpro.com/bulletins/10078727","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"CHEVROLET TRUCK","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"PICKUP","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"GENERAL MOTORS","model":"GENERAL MOTORS","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"GENERAL MOTORS","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"GM","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"GM OF CANADA","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"GMC","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"GMC TRUCK","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":[]}