{"nhtsa_id":10114601,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-15","date":"2015-07-14","document_id":"PIP4786B","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"This Preliminary Information communication provides information to the technician about vehicles that may have low oil pressure message. Technician may also find a Diagnostic Trouble Code P0521 in the Engine Control Module. Technician should follow all published Service Information diagnosis. When using a scan tool if the oil pressure is low but the oil pressure at the oil filter housing is correct, technician should inspect the Valve Lifter Oil Filter for debris/sludge that could be restricting oil flow to the oil pressure sensor. Technician should remove the Valve Lifter Oil Filter and clean it. If the Valve Lifter Oil Filter cannot be cleaned replace it.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10114601-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10114601-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10114601","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":["P0521"],"topics":[],"vehicles":[{"make":"BUICK","model":"LACROSSE","year_from":2009,"year_to":2009,"match":"exact","vehicle_ids":["2009_buick_lacrosse"]},{"make":"BUICK","model":"RAINIER","year_from":2005,"year_to":2007,"match":"exact","vehicle_ids":["2005_buick_rainier","2006_buick_rainier","2007_buick_rainier"]},{"make":"CADILLAC","model":"ESCALADE","year_from":2007,"year_to":2015,"match":"exact","vehicle_ids":["2007_cadillac_escalade","2008_cadillac_escalade","2009_cadillac_escalade","2010_cadillac_escalade","2011_cadillac_escalade","2012_cadillac_escalade","2013_cadillac_escalade","2014_cadillac_escalade","2015_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2007,"year_to":2015,"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","2014_cadillac_escalade","2015_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":"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":"CAMARO","year_from":2010,"year_to":2015,"match":"exact","vehicle_ids":["2010_chevrolet_camaro","2011_chevrolet_camaro","2012_chevrolet_camaro","2013_chevrolet_camaro","2014_chevrolet_camaro","2015_chevrolet_camaro"]},{"make":"CHEVROLET","model":"CORVETTE","year_from":2014,"year_to":2015,"match":"exact","vehicle_ids":["2014_chevrolet_corvette","2015_chevrolet_corvette"]},{"make":"CHEVROLET","model":"IMPALA","year_from":2007,"year_to":2009,"match":"exact","vehicle_ids":["2007_chevrolet_impala","2008_chevrolet_impala","2009_chevrolet_impala"]},{"make":"CHEVROLET","model":"MONTE CARLO","year_from":2007,"year_to":2007,"match":"exact","vehicle_ids":["2007_chevrolet_monte-carlo"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2007,"year_to":2011,"match":"base","vehicle_ids":["2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado","2010_chevrolet_silverado","2011_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2014,"year_to":2014,"match":"base","vehicle_ids":["2014_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2007,"year_to":2015,"match":"base","vehicle_ids":["2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado","2010_chevrolet_silverado","2011_chevrolet_silverado","2012_chevrolet_silverado","2013_chevrolet_silverado","2014_chevrolet_silverado","2015_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2013,"year_to":2013,"match":"base","vehicle_ids":["2013_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2007,"year_to":2015,"match":"exact","vehicle_ids":["2007_chevrolet_suburban","2008_chevrolet_suburban","2009_chevrolet_suburban","2010_chevrolet_suburban","2011_chevrolet_suburban","2012_chevrolet_suburban","2013_chevrolet_suburban","2014_chevrolet_suburban","2015_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2007,"year_to":2015,"match":"exact","vehicle_ids":["2007_chevrolet_tahoe","2008_chevrolet_tahoe","2009_chevrolet_tahoe","2010_chevrolet_tahoe","2011_chevrolet_tahoe","2012_chevrolet_tahoe","2013_chevrolet_tahoe","2014_chevrolet_tahoe","2015_chevrolet_tahoe"]},{"make":"CHEVROLET","model":"TRAILBLAZER","year_from":2005,"year_to":2009,"match":"exact","vehicle_ids":["2005_chevrolet_trailblazer","2006_chevrolet_trailblazer","2007_chevrolet_trailblazer","2008_chevrolet_trailblazer","2009_chevrolet_trailblazer"]},{"make":"GMC","model":"ENVOY","year_from":2005,"year_to":2009,"match":"exact","vehicle_ids":["2005_gmc_envoy","2006_gmc_envoy","2007_gmc_envoy","2008_gmc_envoy","2009_gmc_envoy"]},{"make":"GMC","model":"ENVOY XL","year_from":2006,"year_to":2006,"match":"base","vehicle_ids":["2006_gmc_envoy"]},{"make":"GMC","model":"ENVOY XUV","year_from":2005,"year_to":2005,"match":"base","vehicle_ids":["2005_gmc_envoy"]},{"make":"GMC","model":"SIERRA 1500","year_from":2014,"year_to":2014,"match":"base","vehicle_ids":["2014_gmc_sierra"]},{"make":"GMC","model":"SIERRA 2500","year_from":2007,"year_to":2015,"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","2014_gmc_sierra","2015_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":"SIERRA DENALI","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_gmc_sierra"]},{"make":"GMC","model":"YUKON","year_from":2007,"year_to":2015,"match":"exact","vehicle_ids":["2007_gmc_yukon","2008_gmc_yukon","2009_gmc_yukon","2010_gmc_yukon","2011_gmc_yukon","2012_gmc_yukon","2013_gmc_yukon","2014_gmc_yukon","2015_gmc_yukon"]},{"make":"GMC","model":"YUKON DENALI","year_from":2007,"year_to":2013,"match":"base","vehicle_ids":["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":2007,"year_to":2013,"match":"base","vehicle_ids":["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":2007,"year_to":2011,"match":"exact","vehicle_ids":["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":2014,"match":"base","vehicle_ids":["2012_gmc_yukon","2013_gmc_yukon","2014_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2015,"year_to":2015,"match":"exact","vehicle_ids":["2015_gmc_yukon-xl"]},{"make":"PONTIAC","model":"G8","year_from":2008,"year_to":2009,"match":"exact","vehicle_ids":["2008_pontiac_g8","2009_pontiac_g8"]},{"make":"PONTIAC","model":"GRAND PRIX","year_from":2007,"year_to":2008,"match":"exact","vehicle_ids":["2007_pontiac_grand-prix","2008_pontiac_grand-prix"]},{"make":"SAAB","model":"9-7X","year_from":2005,"year_to":2009,"match":"exact","vehicle_ids":["2005_saab_9-7x","2006_saab_9-7x","2007_saab_9-7x","2008_saab_9-7x","2009_saab_9-7x"]}],"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":[]}