{"nhtsa_id":10207719,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-02-07","date":"2019-01-28","document_id":"15114A","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; ELECTRICAL SYSTEM; ENGINE","mfr_system":null,"summary":"Special Coverage. On some vehicles equipped with a 6.6L Duramax Diesel engine (RPO LML, LGH) the malfunction indicator lamp (MIL) may illuminate due to a condition with the glow plugs. When diagnosed, replacement of one of the engines glow plugs may be required. No drivability issues are generally associated with this issue, but harder starting in cold ambient temperatures may be noted. Dealers are to replace the affected glow plug. The repairs will be made at no charge to the customer.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10207719-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10207719-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10207719","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2010,"year_to":2012,"match":"exact","vehicle_ids":["2010_chevrolet_express","2011_chevrolet_express","2012_chevrolet_express"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2011,"year_to":2012,"match":"base","vehicle_ids":["2011_chevrolet_silverado","2012_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2011,"year_to":2012,"match":"base","vehicle_ids":["2011_chevrolet_silverado","2012_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2011,"year_to":2012,"match":"base","vehicle_ids":["2011_chevrolet_silverado","2012_chevrolet_silverado"]},{"make":"GMC","model":"SAVANA","year_from":2010,"year_to":2012,"match":"exact","vehicle_ids":["2010_gmc_savana","2011_gmc_savana","2012_gmc_savana"]},{"make":"GMC","model":"SIERRA 1500","year_from":2010,"year_to":2012,"match":"base","vehicle_ids":["2010_gmc_sierra","2011_gmc_sierra","2012_gmc_sierra"]},{"make":"GMC","model":"SIERRA 2500","year_from":2010,"year_to":2012,"match":"base","vehicle_ids":["2010_gmc_sierra","2011_gmc_sierra","2012_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2010,"year_to":2012,"match":"base","vehicle_ids":["2010_gmc_sierra","2011_gmc_sierra","2012_gmc_sierra"]},{"make":"GMC","model":"SIERRA DENALI","year_from":2010,"year_to":2012,"match":"base","vehicle_ids":["2010_gmc_sierra","2011_gmc_sierra","2012_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":[]}