{"nhtsa_id":10001115,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2003-04-15","date":"2003-02-01","document_id":"030730005","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"SERVICE ENGINE SOON INDICATOR ILLUMINATED, TRANSMISSION SLIPS, ENGINE FLARE, DELAYED 2-3 SHIFT, SHIFTS MISSING, NO SHIFT, DIAGNOSTIC TROUBLE CODES P0730, P0756, P0757. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10001115","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":["P0730","P0756","P0757"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"AVALANCHE","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"EXPRESS","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_chevrolet_express"]},{"make":"CHEVROLET","model":"SILVERADO","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_chevrolet_suburban"]},{"make":"GMC","model":"SAVANA","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_gmc_savana"]},{"make":"GMC","model":"SIERRA","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_gmc_sierra"]},{"make":"GMC","model":"YUKON XL","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_gmc_yukon-xl"]}],"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":[]}