{"nhtsa_id":11024346,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-10-17","date":"2025-10-09","document_id":"SC345Z_TSB","mfr_campaign":"SC345Z","replaces":null,"component":"POWER TRAIN","mfr_system":"Subsequent Repair Action","summary":"TECHNICAL SERVICE BULLETIN: SUBSEQUENT REPAIR ACTION: FRONT MOTOR REDUCTION GEAR ASSEMBLY REPLACEMENT (SC345Z) - This bulletin provides information regarding grinding or whining noise coming from the front motor reduction gear assembly after replacing the oil under SC345 (published in August 2025) on certain 2023-2024MY Niro EV (SG2 EV) vehicles produced from December 12, 2022 through February 7, 2024 and EV6 (CV) vehicles produced from December 14, 2022 through February 22, 2024. In rare cases, the front motor reduction gear assembly may exhibit noise after having the oil replaced.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024346-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024346-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11024346","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"EV6","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_kia_ev6","2024_kia_ev6"]},{"make":"KIA","model":"NIRO EV","year_from":2023,"year_to":2024,"match":"base","vehicle_ids":["2023_kia_niro","2024_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":[]}