{"nhtsa_id":11035489,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-08-03","date":"2026-07-14","document_id":"WSB-14","mfr_campaign":"WSB-14","replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"2025 and 2026 Open Trail Motorhomes need to have the 51 volt charging system upgraded in order to extend the battery life for using the motorhome while not connected to an electrical charging system (boondocking).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11035489-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11035489-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11035489","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"TIFFIN","model":"OPEN TRAIL","year_from":2025,"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":[]}