{"nhtsa_id":10009446,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-09-30","date":"2002-09-12","document_id":"09122002","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"THE TRANSFER CASE BUTTONS, LOCATED LEFT OF THE INSTRUMENT PANEL, WIL BE DIFFERENT FROM THE TRADITIONAL SYSTEM. THE UPPER BUTTON WILL NOW HAVE THE STABILITRACK SYMBOL, REPLACING THE AUTO FOUR-WHEEL DRIVE FEATURE. ADDITIONAL INFORMATION IS FOUND IN THE 2003 OWNER'S MANUAL. THIS INVOLVES THE 2003 FULL-SIZE CHEVROLET AND GMC FOUR-WHEEL DRIVE K SERIES WITH THE OPTIONAL STABILITRACK VEHICLE STABILITY ENHANCEMENT SYSTEM. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10009446","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"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":[]}