{"nhtsa_id":10201527,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-10-02","date":"2021-09-15","document_id":"TSB_ELE247","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ELECTRICAL SYSTEM","mfr_system":null,"summary":"TECHNICAL SERVICE BULLETIN: SERVICE ACTION: HCU/LDC LOGIC IMPROVEMENT FOR P-DTC (SA484) - This bulletin provides the procedure to update the software logic of the Hybrid Control Unit/Low Voltage DC/DC Converter (HCU/LDC) system on some 2020-2021MY Niro HEV (DE HEV) and Niro PHEV (DE PHEV) vehicles produced in the date ranges shown below, which may incorrectly set a Power Train Diagnostic Trouble Code (P-DTC).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10201527-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10201527-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10201527","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":"transmission-control-module","name":"Transmission control module","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"NIRO","year_from":2020,"year_to":2021,"match":"exact","vehicle_ids":["2020_kia_niro","2021_kia_niro"]},{"make":"KIA","model":"NIRO EV","year_from":2020,"year_to":2021,"match":"base","vehicle_ids":["2020_kia_niro","2021_kia_niro"]},{"make":"KIA","model":"NIRO PHEV","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_kia_niro"]}],"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":[]}