{"nhtsa_id":6090003,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-03-01","date":"1999-12-01","document_id":"990420002","mfr_campaign":null,"replaces":"564401A","component":"POWER TRAIN:DRIVELINE","mfr_system":null,"summary":"SOME OWNERS OF LIGHT DUTY TRUCKS EQUIPPED WITH AUTOMATIC TRANSMISSIONS MAY COMMENT THAT THE VEHICLES EXHIBITS A CLUNK NOISE WHEN SHIFTING BETWEEN PARK AND DRIVE, PARK AND REVERSE, OR DRIVE AND REVERSE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/6090003","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"CHEVROLET TRUCK","year_from":2000,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"GMC TRUCK","year_from":2000,"year_to":2000,"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":[]}