{"nhtsa_id":11000548,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-05-30","date":"2024-05-25","document_id":"TSB_CHA122","mfr_campaign":null,"replaces":null,"component":"STEERING","mfr_system":"CHA","summary":"TECHNICAL SERVICE BULLETIN: MDPS SMALL BEARING REPLACEMENT - This bulletin provides the procedure to replace the worm gear small bearing of Motor Driver Power Steering (MDPS) unit on 2021MY Sorento (MQ4a) vehicles produced from September 30, 2020 through June 30, 2021 and 2021MY Sorento HEV (MQ4 PHEV) vehicles produced from September 15, 2020 through June 30, 2021 which may exhibit an abnormal noise when steering left and right. This may be caused by foreign substances in the MDPS worm shaft small bearing. On some vehicles when the steering wheel is rotated, a scraping/rumbling noise can be heard originating from worm gear small bearing and does not affect the steering effort.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11000548-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11000548-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11000548","components":[{"id":"steering","name":"Steering","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"SORENTO","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_kia_sorento"]},{"make":"KIA","model":"SORENTO HYBRID","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_kia_sorento"]}],"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":[]}