{"nhtsa_id":10006566,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-05-06","date":"2004-01-01","document_id":"01925","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"TECH 2 ENGINE DATA INCORRECT- GEN L-TERMINAL SIGNAL COMMAND DATA PARAMETER. *MR","document":null,"url":"https://open.wenmarpro.com/bulletins/10006566","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"RAINIER","year_from":2004,"year_to":2004,"match":"exact","vehicle_ids":["2004_buick_rainier"]},{"make":"CHEVROLET","model":"TRAILBLAZER","year_from":2002,"year_to":2004,"match":"exact","vehicle_ids":["2002_chevrolet_trailblazer","2003_chevrolet_trailblazer","2004_chevrolet_trailblazer"]},{"make":"GMC","model":"ENVOY","year_from":2002,"year_to":2003,"match":"exact","vehicle_ids":["2002_gmc_envoy","2003_gmc_envoy"]},{"make":"OLDSMOBILE","model":"BRAVADA","year_from":2002,"year_to":2004,"match":"exact","vehicle_ids":["2002_oldsmobile_bravada","2003_oldsmobile_bravada","2004_oldsmobile_bravada"]}],"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":[]}