{"nhtsa_id":617758,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-03-26","date":"2001-01-01","document_id":"010101","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"GM POWERTRAIN IS INVESTIGATING A WHINING NOISE IN THE 4T80E TRANSMISSION DUE TO SPALLING / PITTING ON THE DRIVE AND / OR DRIVEN SPROCKET THRUST BEARINGS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/617758","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"DEVILLE","year_from":2000,"year_to":2001,"match":"exact","vehicle_ids":["2000_cadillac_deville","2001_cadillac_deville"]},{"make":"CADILLAC","model":"ELDORADO","year_from":2000,"year_to":2001,"match":"exact","vehicle_ids":["2000_cadillac_eldorado","2001_cadillac_eldorado"]},{"make":"CADILLAC","model":"SEVILLE","year_from":2000,"year_to":2001,"match":"exact","vehicle_ids":["2000_cadillac_seville","2001_cadillac_seville"]},{"make":"OLDSMOBILE","model":"AURORA","year_from":2001,"year_to":2001,"match":"exact","vehicle_ids":["2001_oldsmobile_aurora"]}],"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":[]}