{"nhtsa_id":11021294,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-08-04","date":"2025-07-09","document_id":"CBR 2443 072025","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER; STRUCTURE:BODY","mfr_system":null,"summary":"CBR - The truck’s trailer detection system uses a brief pulse of compressed air through the red trailer supply line to detect a connected trailer, but this pulse can inadvertently re-lock air-actuated tandem slide systems; this procedure outlines a method to mitigate the issue while sliding the trailer tandems.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021294-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021294-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11021294","components":[{"id":"structure-body","name":"Body and frame","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"VOLVO","model":"VNL (4)","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":[]}