{"nhtsa_id":10052217,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2013-06-28","date":"2013-04-01","document_id":"ERB-13102","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL","mfr_system":null,"summary":"GMC/CHEVROLET: SEE DOCUMENT SEARCH BUTTON FOR OWNER. SOME VEHICLES, WITH COMPRESSED NATURAL GAS (CNG), ARE EXPERIENCING A HIGHER TAILPIPE EMISSION OF EXHAUST DUE TO AN INCORRECT CALIBRATION OF EMC, ALLOWED BY EMISSION STANDARDS. MODELS 2013 EXPRESS, SAVANA. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10052217","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_chevrolet_express"]},{"make":"GMC","model":"SAVANA","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_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":[]}