{"nhtsa_id":11027198,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-01-07","date":"2025-12-01","document_id":"TSB54-101-WST","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Technical Service Bulletin Low Coolant Sensor","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11027198-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11027198-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11027198","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"47X","year_from":2022,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"WESTERN STAR","model":"49X","year_from":2021,"year_to":2026,"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":[]}