{"nhtsa_id":628845,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-03-21","date":"2004-11-01","document_id":"020730001A","mfr_campaign":null,"replaces":"020730001B","component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"DIAGNOSTIC INFORMATION ON DIAGNOSTIC TROUBLE CODE P1870, TRANSMISSION COMPONENT SLIPPING FOR 2000 - 2002 PASSENGER CARS AND LIGHT DUTY TRUCKS. *TT UPDATE TO INCLUDE 2004 MODELS. *TT UPDATED *EH","document":null,"url":"https://open.wenmarpro.com/bulletins/628845","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":["P1870"],"topics":[],"vehicles":[{"make":"BUICK","model":"BUICK","year_from":2000,"year_to":2002,"match":null,"vehicle_ids":[]},{"make":"CADILLAC","model":"CADILLAC","year_from":2000,"year_to":2002,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"CHEVROLET","year_from":2000,"year_to":2002,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"GMC","year_from":2000,"year_to":2002,"match":null,"vehicle_ids":[]},{"make":"HUMMER","model":"H2","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_hummer_h2","2004_hummer_h2"]},{"make":"OLDSMOBILE","model":"OLDSMOBILE","year_from":2000,"year_to":2002,"match":null,"vehicle_ids":[]},{"make":"PONTIAC","model":"PONTIAC","year_from":2000,"year_to":2002,"match":null,"vehicle_ids":[]}],"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":[]}