{"nhtsa_id":11025102,"type":"other","type_name":"Other","date_added":"2025-11-06","date":"2025-10-03","document_id":"IND-10.3.2025-2","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"This Ask Polaris article provides details for troubleshooting and remediation of model year 2022+ Chief motorcycles that exhibit a whistling noise coming from the engine or intake tract during operation.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11025102-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11025102-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11025102","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"INDIAN","model":"CHIEF","year_from":2022,"year_to":2025,"match":null,"vehicle_ids":[]}],"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":[]}