{"nhtsa_id":634786,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-09","date":"2010-01-01","document_id":"02-06-04-037","mfr_campaign":null,"replaces":"SB-020604037H","component":"UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"SOME CUSTOMERS WHOSE VEHICLES ARE OPERATED IN DUSTY TYPE ENVIRONMENTS, SUCH AS FARMING OR MINING OFF-ROAD TYPE APPLICATIONS, MAY COMMENT ABOUT THE ILLUMINATION OF THE INSTRUMENT PANEL SES LIGHT, WITH DIAGNOSTIC TROUBLE CODE P0446 SET. *TT UPDATED 7/11/08. *NJ UPDATED 11/5/10. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/634786","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P0446"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO","year_from":1999,"year_to":2001,"match":"exact","vehicle_ids":["1999_chevrolet_silverado","2000_chevrolet_silverado","2001_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO","year_from":2007,"year_to":2007,"match":"exact","vehicle_ids":["2007_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2008,"year_to":2008,"match":"base","vehicle_ids":["2008_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2008,"year_to":2008,"match":"base","vehicle_ids":["2008_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2008,"year_to":2008,"match":"base","vehicle_ids":["2008_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA","year_from":1999,"year_to":2001,"match":"exact","vehicle_ids":["1999_gmc_sierra","2000_gmc_sierra","2001_gmc_sierra"]},{"make":"GMC","model":"SIERRA","year_from":2008,"year_to":2008,"match":"exact","vehicle_ids":["2008_gmc_sierra"]},{"make":"GMC","model":"SIERRA 1500","year_from":2007,"year_to":2007,"match":"base","vehicle_ids":["2007_gmc_sierra"]},{"make":"GMC","model":"SIERRA 2500","year_from":2007,"year_to":2007,"match":"base","vehicle_ids":["2007_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2007,"year_to":2007,"match":"base","vehicle_ids":["2007_gmc_sierra"]},{"make":"GMC","model":"SIERRA CLASSIC","year_from":2007,"year_to":2007,"match":"base","vehicle_ids":["2007_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":[]}