{"nhtsa_id":622930,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-10-24","date":"2001-06-01","document_id":"010730023","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"SOME OWNERS WITH VEHICLES BUILT BEFORE JANUARY 15,1999 MAY COMMENT ON A HARSH 1-2 UPSHIFT AND MAY ALSO HAVE A CHECK ENGINE LIGHT. *ET","document":null,"url":"https://open.wenmarpro.com/bulletins/622930","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"ROADMASTER","year_from":1996,"year_to":1996,"match":"exact","vehicle_ids":["1996_buick_roadmaster"]},{"make":"CADILLAC","model":"ESCALADE","year_from":1999,"year_to":2000,"match":"exact","vehicle_ids":["1999_cadillac_escalade","2000_cadillac_escalade"]},{"make":"CADILLAC","model":"FLEETWOOD","year_from":1996,"year_to":1996,"match":"exact","vehicle_ids":["1996_cadillac_fleetwood"]},{"make":"CHEVROLET","model":"C/K SERIES","year_from":1996,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"CAMARO","year_from":1996,"year_to":2000,"match":"exact","vehicle_ids":["1996_chevrolet_camaro","1997_chevrolet_camaro","1998_chevrolet_camaro","1999_chevrolet_camaro","2000_chevrolet_camaro"]},{"make":"CHEVROLET","model":"CORVETTE","year_from":1996,"year_to":2000,"match":"exact","vehicle_ids":["1996_chevrolet_corvette","1997_chevrolet_corvette","1998_chevrolet_corvette","1999_chevrolet_corvette","2000_chevrolet_corvette"]},{"make":"CHEVROLET","model":"G SERIES","year_from":1996,"year_to":1996,"match":"exact","vehicle_ids":["1996_chevrolet_g-series"]},{"make":"CHEVROLET","model":"G SERIES","year_from":1997,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"M/L","year_from":1997,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"M/L SERIES","year_from":1996,"year_to":1996,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"S/T SERIES","year_from":1996,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"C/K SERIES","year_from":1996,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"G SERIES","year_from":1996,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"M/L SERIES","year_from":1996,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"S/T SERIES","year_from":1996,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"OLDSMOBILE","model":"BRAVADA","year_from":1996,"year_to":2000,"match":"exact","vehicle_ids":["1996_oldsmobile_bravada","1997_oldsmobile_bravada","1998_oldsmobile_bravada","1999_oldsmobile_bravada","2000_oldsmobile_bravada"]},{"make":"PONTIAC","model":"FIREBIRD","year_from":1996,"year_to":2000,"match":"exact","vehicle_ids":["1996_pontiac_firebird","1997_pontiac_firebird","1998_pontiac_firebird","1999_pontiac_firebird","2000_pontiac_firebird"]}],"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":[]}