{"nhtsa_id":10177653,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-07-28","date":"2020-07-20","document_id":"WI20-011","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Warranty Information Letter for Detroit and TBB Parchment Format Update. In the continuing effort to standardize across brands, DTNA is pleased to announce that Detroit Diesel Corporation (Detroit) and Thomas Built Bus (TBB) parchments will be transitioned to the format used for Freightliner, Freightliner Custom Chassis Corporation (FCCC), and Western Star. DTNA's goal is to improve and align documentation but individual coverages have not changed. Updated parchments, also known as coverage sheets, will be published on a rolling basis.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10177653-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10177653-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10177653","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"THOMAS BUILT BUSES","model":"MINOTOUR","year_from":2010,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"THOMAS BUILT BUSES","model":"SAF-T-LINER C2","year_from":2010,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"THOMAS BUILT BUSES","model":"SAF-T-LINER EFX","year_from":2010,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"THOMAS BUILT BUSES","model":"SAF-T-LINER HDX","year_from":2010,"year_to":2021,"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":[]}