{"nhtsa_id":10034491,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2010-11-19","date":"2010-06-01","document_id":"TSB-10-01-023","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","mfr_system":null,"summary":"HYUNDAI: AUTOMATIC TRANSAXLE ECM AND TCM UPDATE. PROVIDES A PROCEDURE TO UPDATE THE ECM AND TCM SOFTWARE TO THE MOST RECENT VERSIONS TO REVISE-ACCELERATION FEEL FROM A STOP OR BELOW 15MPH; SHIFT QUALITY WHEN DECELERATING TO A STOP AT ABOUT 30MPH WHEN THE ATF IS COLD. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10034491","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"software","name":"Software","parent":"electrical"},{"id":"transmission-control-module","name":"Transmission control module","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"SONATA","year_from":2009,"year_to":2010,"match":"exact","vehicle_ids":["2009_hyundai_sonata","2010_hyundai_sonata"]}],"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":[]}