{"nhtsa_id":10013017,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2005-04-06","date":"2004-03-08","document_id":"03082004","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)","mfr_system":null,"summary":"INOPERATIVE FOUR-WHEEL DRIVE SYSTEMS, FOUR-WHEEL DRIVE LIGHT INDICATORS ON AND SYSTEMS NOT FUNCTIONING PROPERLY ALL DUE TO SLEEPY MODULES. BUICK RAINIERS, CHEVROLET TRAILBLAZERS, CHEVROLET AVALANCHES, SILVERADOS, SUBURBANS AND TAHOES, GMC ENVOYS, GMC SIERRA YUKON, YUKON XL, GMC ENVOY XUVS AND OLDSMOBILE BRAVADA. MODEL YEAR UNKNOWN. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10013017","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"transfer-case","name":"Transfer case","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"UNKNOWN","model":"UNKNOWN","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":[]}