{"nhtsa_id":10047919,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-12-10","date":"2012-10-01","document_id":"PIE-0225-B","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)","mfr_system":null,"summary":"CHEVROLET/GMC: THE 4WD FAILS TO ENGAGE WHEN SERVICE 4WD INDICATOR ILLUMINATES AND TRANSFER CASE CONTROL MODULE (TCCM) REPORTS POSSIBLE C0379 SET. MODELS 2012-2013 AVALANCHE, SILVERADO, SUBURBAN, TAHOE, SIERRA, YUKON, YUKON XL. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10047919","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"transfer-case","name":"Transfer case","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"AVALANCHE","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"AVALANCHE 1500","year_from":2013,"year_to":2013,"match":"base","vehicle_ids":["2013_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"SILVERADO","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_chevrolet_silverado","2013_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_chevrolet_suburban","2013_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_chevrolet_tahoe"]},{"make":"GMC","model":"SIERRA","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_gmc_sierra","2013_gmc_sierra"]},{"make":"GMC","model":"YUKON","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_gmc_yukon","2013_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2012,"year_to":2013,"match":"base","vehicle_ids":["2012_gmc_yukon","2013_gmc_yukon"]}],"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":[]}