{"nhtsa_id":11013580,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-02-04","date":"2021-05-20","document_id":"SC-21-056","mfr_campaign":"SC-21-056","replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Transit bus repair to the HVAC, the supply air temperature sensor is being replaced to improved sealed sensor provided by our HVAC OEM. The sensor failure prevents the HVAC from running.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-11013580-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-11013580-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11013580","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PROTERRA","model":"CATALYST","year_from":2017,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"PROTERRA","model":"ZX5","year_from":2019,"year_to":2022,"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":[]}