{"nhtsa_id":10089968,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-01-31","date":"2015-06-26","document_id":"15411","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM","mfr_system":null,"summary":"15411 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO INSTALL FUSES AND RELAYS AS REQUIRED IN THE UNDERHOOD ELECTRICAL CENTER (UEC) ON CERTAIN 2015 MODEL YEAR CHEVROLET SILVERADO AND GMC SIERRA VEHICLES EQUIPPED WITH AN ACCESSORY-WIRING-JUNCTION-BLOCK (RPO 9L7). THESE VEHICLES MAY HAVE MISSING FUSES AND RELAYS. THE CUSTOMER MAY NOTICE THAT THE AUXILIARY SWITCHES ARE INOPERATIVE AFTER THE FUNCTION IS ADDED TO THE VEHICLE.","document":null,"url":"https://open.wenmarpro.com/bulletins/10089968","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"wiring","name":"Wiring and fuses","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_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":[]}