{"nhtsa_id":10127004,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-01-16","date":"2017-12-11","document_id":"5NP-R6Y5M-01","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","mfr_system":null,"summary":"This bulletin provides information related to the Engine Control Module (ECM) and Transmission Control Module (TCM) software updates for certain 2018MY SONATA, equipped with 2.0L turbo engine and 8 speed automatic transmission. These vehicles may experience Malfunction Indication Light illumination with any of the following DTC(s) below: ? P219C: Cylinder #1 Imbalance Error ? P219D: Cylinder #2 Imbalance Error ? P219E: Cylinder #3 Imbalance Error ? P219F: Cylinder #4 Imbalance Error ? P0731: Gear 1 Incorrect Ratio","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10127004-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10127004-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10127004","components":[{"id":"electrical","name":"Electrical system","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":["P0731","P219C","P219D","P219E","P219F"],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"SONATA","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_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":[]}