{"nhtsa_id":10004200,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2003-11-21","date":"2003-11-18","document_id":"01267B","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)","mfr_system":null,"summary":"SERVICE 4WD LIGHT ON NO CODES BESIDES U1000 CODES. SERVICE VME. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10004200","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"transfer-case","name":"Transfer case","parent":"powertrain"}],"codes":["U1000"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"AVALANCHE","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_chevrolet_avalanche","2004_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"SILVERADO","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_chevrolet_silverado","2004_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_chevrolet_suburban","2004_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_chevrolet_tahoe","2004_chevrolet_tahoe"]},{"make":"GMC","model":"SIERRA","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_gmc_sierra","2004_gmc_sierra"]},{"make":"GMC","model":"YUKON","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_gmc_yukon","2004_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":[]}