{"nhtsa_id":10089960,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-01-31","date":"2015-06-26","document_id":"15111","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"15111 - SPECIAL COVERAGE. ON SOME 2012 MODEL YEAR CHEVROLET SILVERADO, EXPRESS, COLORADO AND GMC SIERRA, SAVANA, AND CANYON VEHICLES EQUIPPED WITH A 4.3L, 2.9L, OR 3.7L ENGINE (RPO LU3, LLV, OR LLR) AND A 4L60E AUTOMATIC TRANSMISSION (RPO M30), THE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED AND THE TRANSMISSION MAY EXHIBIT A HARSH SHIFT FROM FIRST GEAR TO SECOND GEAR. THIS CONDITION MAY ALSO SET DIAGNOSTIC TROUBLE CODE (DTC) P0741 IN THE TRANSMISSION CONTROL MODULE (TCM). IF DTC P0741 IS FOUND, DEALERS ARE TO REPLACE THE AUTOMATIC TRANSMISSION WIRING HARNESS.","document":null,"url":"https://open.wenmarpro.com/bulletins/10089960","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":["P0741"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"COLORADO","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_chevrolet_colorado"]},{"make":"CHEVROLET","model":"EXPRESS","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_chevrolet_express"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2012,"year_to":2012,"match":"base","vehicle_ids":["2012_chevrolet_silverado"]},{"make":"GMC","model":"CANYON","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_gmc_canyon"]},{"make":"GMC","model":"SAVANA","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_gmc_savana"]},{"make":"GMC","model":"SIERRA 1500","year_from":2012,"year_to":2012,"match":"base","vehicle_ids":["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":[]}