{"nhtsa_id":10222233,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-04","date":"2022-09-28","document_id":"SBW54-088","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING","mfr_system":null,"summary":"Western Star Service Bulletin for Non-Functioning Heated Headlamps. This service bulletin describes how to resolve non-functioning headlamps on 47X and 49X vehicles. Symptoms of this issue may only appear while operating in cold weather conditions. Snow, ice, and moisture may accumulate on headlight lenses.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10222233-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10222233-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10222233","components":[{"id":"lighting","name":"Lighting","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"47X","year_from":2022,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"WESTERN STAR","model":"49X","year_from":2021,"year_to":2023,"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":[]}