{"nhtsa_id":10004720,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-01-02","date":"2003-10-01","document_id":"030421007","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:DRIVELINE","mfr_system":null,"summary":"DRIVELINE CHARACTERISTICS FOR FOUR-WHEEL DRIVE (4WD) SYSTEM. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10004720","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"COLORADO","year_from":2004,"year_to":2004,"match":"exact","vehicle_ids":["2004_chevrolet_colorado"]},{"make":"GMC","model":"CANYON","year_from":2004,"year_to":2004,"match":"exact","vehicle_ids":["2004_gmc_canyon"]}],"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":[]}