{"nhtsa_id":11021987,"type":"service_campaign","type_name":"Service campaign","date_added":"2025-08-20","date":"2025-08-22","document_id":"SC345_OWNR_SG2","mfr_campaign":"SC345","replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"VOLUNTARY SERVICE CAMPAIGN: OWNER NOTIFICATION (SC345) - This document is the owner notification advising that Kia is conducting a Voluntary Service Campaign to replace the gear oil in the front motor and gear reduction assembly, and fill it to the factory-specified amount in certain Niro EV vehicles, manufactured from December 12, 2022 through February 7, 2024.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021987-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021987-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11021987","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"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":[]}