{"nhtsa_id":11012840,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-01-14","date":"2024-12-09","document_id":"24111","mfr_campaign":"24111","replaces":null,"component":"ENGINE","mfr_system":null,"summary":"REASON FOR REVISION: Added section and parts for heat exchangers with shutoff valve (feature 48PPP). Added image showing correct installation of parts for the overall cabin heater system. Revised steps and images throughout the document for consistency and clarity. DEFECT DESCRIPTION: Certain IC Bus® Electric CE Series buses may have incorrect coolant hose routing for the cabin heat which may cause coolant to leak from the cabin heat surge tank overflow hose.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11012840-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11012840-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11012840","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"IC BUS","model":"EVSB","year_from":2024,"year_to":2024,"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":[]}