{"nhtsa_id":10090069,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-02-01","date":"2015-03-25","document_id":"13386A","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"13386A - SPECIAL COVERAGE (REVISED WARRANTY TRANSACTION INFORMATION). ON SOME VEHICLES EQUIPPED WITH A 6.6L DIESEL ENGINE (RPO LGH) AND VEHICLES EQUIPPED WITH A 6.6L DIESEL ENGINE (RPO LML/LGH), 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. DEALERS ARE TO REPLACE THE NOX SENSOR.","document":null,"url":"https://open.wenmarpro.com/bulletins/10090069","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":"CHEVROLET","model":"SILVERADO 2500","year_from":2010,"year_to":2011,"match":"base","vehicle_ids":["2010_chevrolet_silverado","2011_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2010,"year_to":2011,"match":"base","vehicle_ids":["2010_chevrolet_silverado","2011_chevrolet_silverado"]},{"make":"GMC","model":"SAVANA","year_from":2010,"year_to":2011,"match":"exact","vehicle_ids":["2010_gmc_savana","2011_gmc_savana"]},{"make":"GMC","model":"SIERRA 2500","year_from":2011,"year_to":2011,"match":"base","vehicle_ids":["2011_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2011,"year_to":2011,"match":"base","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":[]}