{"nhtsa_id":10038769,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-06-27","date":"2011-05-01","document_id":"SB-11159","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"GM: 2011 SIERRA/SILVERADO.TWO WELDS MAY BE MISSING FROM THE BOTTOM OF THE TRUCK BOX AND UNDER LOADS THE REMAINING WELDS MAY FRACTURE. *RM","document":null,"url":"https://open.wenmarpro.com/bulletins/10038769","components":[],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_gmc_sierra"]}],"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":[]}