{"nhtsa_id":10079303,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-09-07","date":"2015-01-07","document_id":"G-208062","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"13386 - SPECIAL COVERAGE. ON SOME VEHICLES EQUIPPED WITH A 6.6L DIESEL ENGINE, THE NITROGEN OXIDE (NOX) SENSOR MAY FAIL DUE TO CONTAMINATION BETWEEN THE TERMINALS IN THE SENSOR AND THE WIRE INTERFACE. THE CONTAMINATION MAY CAUSE THE NOX SENSOR SIGNAL TO BECOME UNSTABLE AND/OR OSCILLATE WHICH MAY CAUSE A MALFUNCTION INDICATOR LIGHT TO ILLUMINATE. IF THE CONDITION OCCURS WITHIN THE STATED SPECIAL COVERAGE TERMS, THE NOX SENSOR WILL BE REPLACED.","document":null,"url":"https://open.wenmarpro.com/bulletins/10079303","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2010,"year_to":2011,"match":"exact","vehicle_ids":["2010_chevrolet_express","2011_chevrolet_express"]},{"make":"GMC","model":"SANANA","year_from":2010,"year_to":2010,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"SAVANA","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_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":[]}