{"nhtsa_id":10078505,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-08-09","date":"2016-04-18","document_id":"SB-16-NA-121","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT ADAPTIVE/MOBILITY","mfr_system":null,"summary":"THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE AFFECTED CNG TANK VALVE TO CORRECT A CUSTOMER CONCERN OF CNG GAS VENTING, LEAKING, OR RELEASING DURING EXTREME COLD TEMPERATURES AND/OR DURING REFUELING DUE TO COLD TEMPERATURES ALONG WITH THE COOLING EFFECTS OF THE REFUELING PROCESS.","document":null,"url":"https://open.wenmarpro.com/bulletins/10078505","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2011,"year_to":2016,"match":"exact","vehicle_ids":["2011_chevrolet_express","2012_chevrolet_express","2013_chevrolet_express","2014_chevrolet_express","2015_chevrolet_express","2016_chevrolet_express"]},{"make":"GMC","model":"SAVANA","year_from":2011,"year_to":2016,"match":"exact","vehicle_ids":["2011_gmc_savana","2012_gmc_savana","2013_gmc_savana","2014_gmc_savana","2015_gmc_savana","2016_gmc_savana"]}],"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":[]}