{"nhtsa_id":37925,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1995-02-09","date":"1994-08-01","document_id":"9474L60E14","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"SOME 1994 VEHICLES EQUIPPED WITH A HYDRA-MATIC 4L60-E (M30) TRANSMISSION MAY EXHIBIT A SOFT 1-2 UPSHIFT. *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/37925","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"POWERTRAIN","model":"POWERTRAIN","year_from":1994,"year_to":1994,"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":[]}