{"nhtsa_id":10112544,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-15","date":"2012-11-06","document_id":"PIT4208D","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC:POWER ASSIST; STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID","mfr_system":null,"summary":"This Preliminary Information communication provides information to the technician about vehicles that may have a power steering pump whine noise. Technician will need to flush and refill the power steering system with Lucas Power Steering Fluid with Conditioners. Technician will replace the power steering pump with the latest design if the fluid is not available.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2012/MC-10112544-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2012/MC-10112544-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10112544","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"steering","name":"Steering","parent":null},{"id":"power-steering","name":"Power steering","parent":"steering"}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"ESCALADE","year_from":2003,"year_to":2013,"match":"exact","vehicle_ids":["2003_cadillac_escalade","2004_cadillac_escalade","2005_cadillac_escalade","2006_cadillac_escalade","2007_cadillac_escalade","2008_cadillac_escalade","2009_cadillac_escalade","2010_cadillac_escalade","2011_cadillac_escalade","2012_cadillac_escalade","2013_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2003,"year_to":2013,"match":"base","vehicle_ids":["2003_cadillac_escalade","2004_cadillac_escalade","2005_cadillac_escalade","2006_cadillac_escalade","2007_cadillac_escalade","2008_cadillac_escalade","2009_cadillac_escalade","2010_cadillac_escalade","2011_cadillac_escalade","2012_cadillac_escalade","2013_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE EXT","year_from":2007,"year_to":2013,"match":"base","vehicle_ids":["2007_cadillac_escalade","2008_cadillac_escalade","2009_cadillac_escalade","2010_cadillac_escalade","2011_cadillac_escalade","2012_cadillac_escalade","2013_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE EXT 1500","year_from":2003,"year_to":2006,"match":"base","vehicle_ids":["2003_cadillac_escalade","2004_cadillac_escalade","2005_cadillac_escalade","2006_cadillac_escalade"]},{"make":"CHEVROLET","model":"AVALANCHE","year_from":2007,"year_to":2013,"match":"exact","vehicle_ids":["2007_chevrolet_avalanche","2008_chevrolet_avalanche","2009_chevrolet_avalanche","2010_chevrolet_avalanche","2011_chevrolet_avalanche","2012_chevrolet_avalanche","2013_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"AVALANCHE 1500","year_from":2003,"year_to":2006,"match":"base","vehicle_ids":["2003_chevrolet_avalanche","2004_chevrolet_avalanche","2005_chevrolet_avalanche","2006_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"AVALANCHE 2500","year_from":2003,"year_to":2006,"match":"base","vehicle_ids":["2003_chevrolet_avalanche","2004_chevrolet_avalanche","2005_chevrolet_avalanche","2006_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2003,"year_to":2013,"match":"base","vehicle_ids":["2003_chevrolet_silverado","2004_chevrolet_silverado","2005_chevrolet_silverado","2006_chevrolet_silverado","2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado","2010_chevrolet_silverado","2011_chevrolet_silverado","2012_chevrolet_silverado","2013_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2003,"year_to":2013,"match":"base","vehicle_ids":["2003_chevrolet_silverado","2004_chevrolet_silverado","2005_chevrolet_silverado","2006_chevrolet_silverado","2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado","2010_chevrolet_silverado","2011_chevrolet_silverado","2012_chevrolet_silverado","2013_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2003,"year_to":2013,"match":"base","vehicle_ids":["2003_chevrolet_silverado","2004_chevrolet_silverado","2005_chevrolet_silverado","2006_chevrolet_silverado","2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado","2010_chevrolet_silverado","2011_chevrolet_silverado","2012_chevrolet_silverado","2013_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2003,"year_to":2013,"match":"exact","vehicle_ids":["2003_chevrolet_suburban","2004_chevrolet_suburban","2005_chevrolet_suburban","2006_chevrolet_suburban","2007_chevrolet_suburban","2008_chevrolet_suburban","2009_chevrolet_suburban","2010_chevrolet_suburban","2011_chevrolet_suburban","2012_chevrolet_suburban","2013_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2003,"year_to":2013,"match":"exact","vehicle_ids":["2003_chevrolet_tahoe","2004_chevrolet_tahoe","2005_chevrolet_tahoe","2006_chevrolet_tahoe","2007_chevrolet_tahoe","2008_chevrolet_tahoe","2009_chevrolet_tahoe","2010_chevrolet_tahoe","2011_chevrolet_tahoe","2012_chevrolet_tahoe","2013_chevrolet_tahoe"]},{"make":"GMC","model":"SIERRA 1500","year_from":2003,"year_to":2013,"match":"base","vehicle_ids":["2003_gmc_sierra","2004_gmc_sierra","2005_gmc_sierra","2006_gmc_sierra","2007_gmc_sierra","2008_gmc_sierra","2009_gmc_sierra","2010_gmc_sierra","2011_gmc_sierra","2012_gmc_sierra","2013_gmc_sierra"]},{"make":"GMC","model":"SIERRA 2500","year_from":2003,"year_to":2013,"match":"base","vehicle_ids":["2003_gmc_sierra","2004_gmc_sierra","2005_gmc_sierra","2006_gmc_sierra","2007_gmc_sierra","2008_gmc_sierra","2009_gmc_sierra","2010_gmc_sierra","2011_gmc_sierra","2012_gmc_sierra","2013_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2003,"year_to":2013,"match":"base","vehicle_ids":["2003_gmc_sierra","2004_gmc_sierra","2005_gmc_sierra","2006_gmc_sierra","2007_gmc_sierra","2008_gmc_sierra","2009_gmc_sierra","2010_gmc_sierra","2011_gmc_sierra","2012_gmc_sierra","2013_gmc_sierra"]},{"make":"GMC","model":"SIERRA DENALI","year_from":2007,"year_to":2013,"match":"base","vehicle_ids":["2007_gmc_sierra","2008_gmc_sierra","2009_gmc_sierra","2010_gmc_sierra","2011_gmc_sierra","2012_gmc_sierra","2013_gmc_sierra"]},{"make":"GMC","model":"YUKON","year_from":2003,"year_to":2013,"match":"exact","vehicle_ids":["2003_gmc_yukon","2004_gmc_yukon","2005_gmc_yukon","2006_gmc_yukon","2007_gmc_yukon","2008_gmc_yukon","2009_gmc_yukon","2010_gmc_yukon","2011_gmc_yukon","2012_gmc_yukon","2013_gmc_yukon"]},{"make":"GMC","model":"YUKON DENALI","year_from":2003,"year_to":2013,"match":"base","vehicle_ids":["2003_gmc_yukon","2004_gmc_yukon","2005_gmc_yukon","2006_gmc_yukon","2007_gmc_yukon","2008_gmc_yukon","2009_gmc_yukon","2010_gmc_yukon","2011_gmc_yukon","2012_gmc_yukon","2013_gmc_yukon"]},{"make":"GMC","model":"YUKON DENALI XL","year_from":2004,"year_to":2013,"match":"base","vehicle_ids":["2004_gmc_yukon","2005_gmc_yukon","2006_gmc_yukon","2007_gmc_yukon","2008_gmc_yukon","2009_gmc_yukon","2010_gmc_yukon","2011_gmc_yukon","2012_gmc_yukon","2013_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2003,"year_to":2011,"match":"exact","vehicle_ids":["2003_gmc_yukon-xl","2004_gmc_yukon-xl","2005_gmc_yukon-xl","2006_gmc_yukon-xl","2007_gmc_yukon-xl","2008_gmc_yukon-xl","2009_gmc_yukon-xl","2010_gmc_yukon-xl","2011_gmc_yukon-xl"]},{"make":"GMC","model":"YUKON XL","year_from":2012,"year_to":2013,"match":"base","vehicle_ids":["2012_gmc_yukon","2013_gmc_yukon"]},{"make":"HUMMER","model":"H2","year_from":2003,"year_to":2009,"match":"exact","vehicle_ids":["2003_hummer_h2","2004_hummer_h2","2005_hummer_h2","2006_hummer_h2","2007_hummer_h2","2008_hummer_h2","2009_hummer_h2"]}],"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":[]}