{"nhtsa_id":10178350,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-08-10","date":"2020-06-26","document_id":"PIP4912G","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Preliminary Information communication provides information to the technician on vehicles that may have an intermittent high idle. If a technician has duplicated, or the customer description aligns with the speeds mentioned in the idle speed description tables, the idle speed should be considered a normal characteristic of current vehicle design.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10178350-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10178350-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10178350","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2010,"year_to":2016,"match":"exact","vehicle_ids":["2010_chevrolet_express","2011_chevrolet_express","2012_chevrolet_express","2013_chevrolet_express","2014_chevrolet_express","2015_chevrolet_express","2016_chevrolet_express"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2011,"year_to":2014,"match":"base","vehicle_ids":["2011_chevrolet_silverado","2012_chevrolet_silverado","2013_chevrolet_silverado","2014_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2017,"year_to":2019,"match":"base","vehicle_ids":["2017_chevrolet_silverado","2018_chevrolet_silverado","2019_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2015,"year_to":2016,"match":"base","vehicle_ids":["2015_chevrolet_silverado","2016_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_chevrolet_silverado"]},{"make":"GMC","model":"SAVANA","year_from":2010,"year_to":2016,"match":"exact","vehicle_ids":["2010_gmc_savana","2011_gmc_savana","2012_gmc_savana","2013_gmc_savana","2014_gmc_savana","2015_gmc_savana","2016_gmc_savana"]},{"make":"GMC","model":"SIERRA 1500","year_from":2012,"year_to":2014,"match":"base","vehicle_ids":["2012_gmc_sierra","2013_gmc_sierra","2014_gmc_sierra"]},{"make":"GMC","model":"SIERRA 1500","year_from":2017,"year_to":2019,"match":"base","vehicle_ids":["2017_gmc_sierra","2018_gmc_sierra","2019_gmc_sierra"]},{"make":"GMC","model":"SIERRA 2500","year_from":2015,"year_to":2016,"match":"base","vehicle_ids":["2015_gmc_sierra","2016_gmc_sierra"]},{"make":"GMC","model":"SIERRA 2500","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_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":[]}