{"nhtsa_id":10038984,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-06-30","date":"2011-04-01","document_id":"SB-080730049B","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"GM: SOME VEHICLES MAY HAVE TRANSMISSION FLUID LEAKING FROM THE COOLANT LINES IN COLD TEMPERATURES. *RM","document":null,"url":"https://open.wenmarpro.com/bulletins/10038984","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2006,"year_to":2009,"match":"base","vehicle_ids":["2006_chevrolet_silverado","2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2006,"year_to":2009,"match":"base","vehicle_ids":["2006_chevrolet_silverado","2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 2500","year_from":2006,"year_to":2009,"match":"base","vehicle_ids":["2006_gmc_sierra","2007_gmc_sierra","2008_gmc_sierra","2009_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2006,"year_to":2009,"match":"base","vehicle_ids":["2006_gmc_sierra","2007_gmc_sierra","2008_gmc_sierra","2009_gmc_sierra"]}],"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":[]}