{"nhtsa_id":10026149,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2008-10-02","date":"2008-08-01","document_id":"PIP-4395","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"GMC: FLARE AND OR HARSH 2-3 SHIFTS. THIS CONDITION MAY BE CAUSED BY LEAKING 1-2-3-4 AND 3-5-R CLUTCH FLUID SEAL RINGS (230). MODELS CADILLACS, CHEVROLETS, GMC, HUMMERS, PONTIACS. EQUIPPED WITH 6L80 (RPO MYC) OR 6L90 (RPO MYD) AUTOMATIC TRANSMISSION. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10026149","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"ESCALADE","year_from":2007,"year_to":2009,"match":"exact","vehicle_ids":["2007_cadillac_escalade","2008_cadillac_escalade","2009_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2007,"year_to":2009,"match":"base","vehicle_ids":["2007_cadillac_escalade","2008_cadillac_escalade","2009_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE EXT","year_from":2007,"year_to":2009,"match":"base","vehicle_ids":["2007_cadillac_escalade","2008_cadillac_escalade","2009_cadillac_escalade"]},{"make":"CHEVROLET","model":"AVALANCHE","year_from":2009,"year_to":2009,"match":"exact","vehicle_ids":["2009_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"AVALANCHE 1500","year_from":2009,"year_to":2009,"match":"base","vehicle_ids":["2009_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"CORVETTE","year_from":2006,"year_to":2009,"match":"exact","vehicle_ids":["2006_chevrolet_corvette","2007_chevrolet_corvette","2008_chevrolet_corvette","2009_chevrolet_corvette"]},{"make":"CHEVROLET","model":"SILVERADO","year_from":2007,"year_to":2009,"match":"exact","vehicle_ids":["2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2007,"year_to":2009,"match":"base","vehicle_ids":["2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2007,"year_to":2009,"match":"base","vehicle_ids":["2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2007,"year_to":2009,"match":"base","vehicle_ids":["2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2008,"year_to":2009,"match":"exact","vehicle_ids":["2008_chevrolet_suburban","2009_chevrolet_suburban"]},{"make":"CHEVROLET","model":"SUBURBAN 1500","year_from":2008,"year_to":2009,"match":"base","vehicle_ids":["2008_chevrolet_suburban","2009_chevrolet_suburban"]},{"make":"CHEVROLET","model":"SUBURBAN 2500","year_from":2008,"year_to":2009,"match":"base","vehicle_ids":["2008_chevrolet_suburban","2009_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2009,"year_to":2009,"match":"exact","vehicle_ids":["2009_chevrolet_tahoe"]},{"make":"GMC","model":"SIERRA","year_from":2007,"year_to":2009,"match":"exact","vehicle_ids":["2007_gmc_sierra","2008_gmc_sierra","2009_gmc_sierra"]},{"make":"GMC","model":"SIERRA 1500","year_from":2007,"year_to":2009,"match":"base","vehicle_ids":["2007_gmc_sierra","2008_gmc_sierra","2009_gmc_sierra"]},{"make":"GMC","model":"SIERRA 2500","year_from":2007,"year_to":2009,"match":"base","vehicle_ids":["2007_gmc_sierra","2008_gmc_sierra","2009_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2007,"year_to":2009,"match":"base","vehicle_ids":["2007_gmc_sierra","2008_gmc_sierra","2009_gmc_sierra"]},{"make":"GMC","model":"YUKON","year_from":2009,"year_to":2009,"match":"exact","vehicle_ids":["2009_gmc_yukon"]},{"make":"GMC","model":"YUKON DENALI","year_from":2007,"year_to":2009,"match":"base","vehicle_ids":["2007_gmc_yukon","2008_gmc_yukon","2009_gmc_yukon"]},{"make":"GMC","model":"YUKON DENALI XL","year_from":2007,"year_to":2009,"match":"base","vehicle_ids":["2007_gmc_yukon","2008_gmc_yukon","2009_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2008,"year_to":2009,"match":"exact","vehicle_ids":["2008_gmc_yukon-xl","2009_gmc_yukon-xl"]},{"make":"GMC","model":"YUKON XL 1500","year_from":2008,"year_to":2009,"match":"base","vehicle_ids":["2008_gmc_yukon-xl","2009_gmc_yukon-xl"]},{"make":"GMC","model":"YUKON XL 2500","year_from":2008,"year_to":2009,"match":"base","vehicle_ids":["2008_gmc_yukon-xl","2009_gmc_yukon-xl"]},{"make":"HUMMER","model":"H2","year_from":2008,"year_to":2009,"match":"exact","vehicle_ids":["2008_hummer_h2","2009_hummer_h2"]},{"make":"HUMMER","model":"H2 SUT","year_from":2008,"year_to":2008,"match":null,"vehicle_ids":[]},{"make":"PONTIAC","model":"G8","year_from":2008,"year_to":2009,"match":"exact","vehicle_ids":["2008_pontiac_g8","2009_pontiac_g8"]}],"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":[]}