{"nhtsa_id":11014234,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-02-12","date":"2020-01-02","document_id":"SC-19-123","mfr_campaign":"SC-19-123","replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Transit bus software update to the HVAC provided by the vendor due to the ability to heat with no cabin fan which results in the heater safety switch faulting.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-11014234-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-11014234-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11014234","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PROTERRA","model":"CATALYST","year_from":2019,"year_to":2019,"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":[]}