{"nhtsa_id":10080082,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-09-14","date":"2016-01-29","document_id":"GCUS-3-424","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT","mfr_system":null,"summary":"15663A - SERVICE UPDATE (REVISED SPECIAL REPAIR TOOL ADDED). RELOCATE A WIRE CIRCUIT WITHIN THE ONSTAR CONNECTOR. THESE VEHICLES LACK A GROUND IN THE MICROPHONE RETURN PATH, WHICH RESULTS IN THE VOICE RECOGNITION BECOMING INOPERABLE WHEN THE VEHICLE IS IN RETAINED ACCESSORY (RAP) OR ACCESSORY POWER MODE. IN ADDITION, THE HANDS-FREE VOICE QUALITY CAN BE DEGRADED. THE ONSTAR FUNCTIONS ARE NOT IMPACTED BY THIS CONDITION.","document":null,"url":"https://open.wenmarpro.com/bulletins/10080082","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"ENCLAVE","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_buick_enclave"]},{"make":"CHEVROLET","model":"TRAVERSE","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_chevrolet_traverse"]},{"make":"GMC","model":"ACADIA","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_gmc_acadia"]}],"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":[]}