{"nhtsa_id":10007972,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-07-19","date":"2004-01-01","document_id":"00877A","mfr_campaign":null,"replaces":null,"component":"SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER","mfr_system":null,"summary":"INTERMITTENT LACK OF HEAT IN 2ND AND 3RD ROW SEATING POSITIONS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10007972","components":[{"id":"seats","name":"Seats","parent":null}],"codes":[],"topics":[],"vehicles":[{"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":2004,"match":"exact","vehicle_ids":["2002_gmc_envoy","2003_gmc_envoy","2004_gmc_envoy"]}],"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":[]}