{"nhtsa_id":10090000,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-01-31","date":"2015-05-01","document_id":"15178A","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:MANUAL TRANSMISSION","mfr_system":null,"summary":"15178A - SERVICE UPDATE (REVISED PARTS INFORMATION, SERVICE PROCEDURE AND WARRANTY TRANSACTION INFORMATION). THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO PERFORM A DRIVE AUDIT AND, IF NECESSARY, REPLACE THE REACTION/OUTPUT CARRIER ASSEMBLY AND ASSOCIATED PARTS ON CERTAIN 2015 MODEL YEAR CADILLAC ESCALADE, ESCALADE ESV; CHEVROLET SILVERADO LD CREW, SILVERADO LD CREW LTZ, SILVERADO LD EXT LTZ; AND GMC SIERRA LD CREW, SIERRA LD CREW DENALI, SIERRA LD EXT, YUKON, YUKON DENALI, YUKON XL, YUKON XL DENALI VEHICLES EQUIPPED WITH AN 8-SPEED TRANSMISSION (M5U) AND A 6.2L ENGINE (L86). SOME OF THESE VEHICLES MAY EXHIBIT A TRANSMISSION GEAR WHINE NOISE AT 1000-2000 RPM AND BETWEEN 20 MPH (32 KPH) AND 35 MPH (56 KPH).","document":null,"url":"https://open.wenmarpro.com/bulletins/10090000","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"manual-transmission","name":"Manual transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"ESCALADE","year_from":2015,"year_to":2015,"match":"exact","vehicle_ids":["2015_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_cadillac_escalade"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_gmc_sierra"]},{"make":"GMC","model":"SIERRA 2500","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_gmc_sierra"]},{"make":"GMC","model":"YUKON","year_from":2015,"year_to":2015,"match":"exact","vehicle_ids":["2015_gmc_yukon"]},{"make":"GMC","model":"YUKON DENALI","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_gmc_yukon"]},{"make":"GMC","model":"YUKON DENALI XL","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2015,"year_to":2015,"match":"exact","vehicle_ids":["2015_gmc_yukon-xl"]}],"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":[]}