{"nhtsa_id":619384,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-05-24","date":"2001-05-01","document_id":"01032","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:MANUAL TRANSMISSION","mfr_system":null,"summary":"CUSTOMER SATISFACTION CAMPAIGN REGARDING 6-SPEED MANUAL TRANSMISSION - REPLACE RESEVOIR CAP AND HYDRAULIC FLUID ON CERTAIN 2001 CHEVROLET SILVERADO AND GMC SIERRA 2500 HD, 3500 TRUCKS WITH 8.1L GASOLINE OR 6.6L DIESEL ENGINES. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/619384","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"manual-transmission","name":"Manual transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"2500 HD","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"3500 SERIES","year_from":null,"year_to":null,"match":"base","vehicle_ids":[]},{"make":"GMC","model":"2500 HD","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"3500","year_from":null,"year_to":null,"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":[]}