{"nhtsa_id":10052251,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2013-07-02","date":"2013-05-01","document_id":"FSB-813-001","mfr_campaign":null,"replaces":null,"component":"STRUCTURE","mfr_system":null,"summary":"MACK: INFORMATION PROVIDED ON CERTAIN TRUCKS IN REGARDS TO B PILLAR CRACKS FORMING AT UPPER EXHAUST MOUNTING AND A NEW DEVELOPMENT REINFORCEMENT THAT IMPROVES DURABILITY OF B PILLAR. MODELS CHU. NO MODELS YEARS LISTED. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10052251","components":[{"id":"structure-body","name":"Body and frame","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"CHU","year_from":2013,"year_to":2014,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"PINNACLE (CHU)","year_from":2011,"year_to":2012,"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":[]}