{"nhtsa_id":11029455,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-03-03","date":"2026-02-26","document_id":"S4373 022026","mfr_campaign":null,"replaces":null,"component":"STRUCTURE:BODY","mfr_system":null,"summary":"SC - Mack Trucks has determined that certain Mack sleeper cab assemblies were possibly manufactured with an insufficient number of welds across the rear flange of the upper header","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029455-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029455-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11029455","components":[{"id":"structure-body","name":"Body and frame","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"ANTHEM (AN)","year_from":2025,"year_to":2025,"match":"base","vehicle_ids":["2025_mack_anthem"]},{"make":"MACK","model":"PINNACLE (PI/PN)","year_from":2025,"year_to":2025,"match":"base","vehicle_ids":["2025_mack_pinnacle"]}],"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":[]}