{"nhtsa_id":616747,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-03-09","date":"2001-01-11","document_id":"4318","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"SUBJECT REGARDING NEW SOFTWARE DEVELOPED TO IMPROVE SHIFT QUALITY ON VEHICLES EQUIPPED WITH THE AW 55-50 FIVE SPEED AUTOMATIC TRANSMISSION. THIS SOFTWARE WILL REDUCE HARSH 4-2 AND 3-2 DOWNSHIFTS, GIVE MORE CONSISTENT SHIFT QUALITY AND PROVIDE ENGINE BRAKING IN FIRST GEAR WITH THE GEAR SELECTOR IN POSITION L. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/616747","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"VOLVO","model":"S70","year_from":2000,"year_to":2000,"match":"exact","vehicle_ids":["2000_volvo_s70"]},{"make":"VOLVO","model":"V70","year_from":2000,"year_to":2000,"match":"exact","vehicle_ids":["2000_volvo_v70"]}],"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":[]}