{"nhtsa_id":11020692,"type":"service_campaign","type_name":"Service campaign","date_added":"2025-07-15","date":"2025-07-08","document_id":"25-01-042H TSB","mfr_campaign":"TDR","replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Certain 2024MY Kona Electric (SX2 EV) and 2023-2024MY IONIQ 5 (NE EV) vehicles are equipped with a Motor and Reduction Gear System, also known as Motor-Gear Driven Unit (MGDU), that may have received an incorrect amount of oil/fluid during manufacturing. In some cases, the motor and/or reduction gear can produce a grinding/whining noise during operation. Follow the procedures in this bulletin to drain the existing oil and replace it with new oil to resolve this condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020692-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020692-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11020692","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"IONIQ 5","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_hyundai_ioniq-5","2024_hyundai_ioniq-5"]},{"make":"HYUNDAI","model":"KONA ELECTRIC","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_hyundai_kona"]}],"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":[]}