{"nhtsa_id":11029124,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-03-02","date":"2026-03-02","document_id":"TSB 623","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"The tank heat button will not activate tank heat on the TMSC-100 in 2026 Supreme Aire and Summit Aire coaches.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029124-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029124-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11029124","components":[],"codes":[],"topics":[],"vehicles":[{"make":"NEWMAR","model":"SUMMIT AIRE","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"NEWMAR","model":"SUPREME AIRE","year_from":2026,"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":[]}