{"nhtsa_id":10131592,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-04-02","date":"2017-11-17","document_id":"TSB-027","mfr_campaign":null,"replaces":null,"component":"STRUCTURE:BODY:ROOF AND PILLARS","mfr_system":null,"summary":"customers had been reporting the loss of random roof panel retaining fasteners. After looking into this issue Quantum initiated an upgrade for the U-Nut used in this joint, the new U-Nut uses an interference fit to inhibit loosening and loss of fasteners","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10131592-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10131592-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10131592","components":[{"id":"structure-body","name":"Body and frame","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"QUANTUM FUEL SYSTEMS LLC.","model":"CNG FUEL SYSTEM","year_from":null,"year_to":null,"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":[]}