GMC/CHEVROLET: TSB CONTAINS A NOTIFICATION OF AN OWNER'S LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. ON CERTAIN TRUCKS, VOLUNTARY EMISSION RECALL IS BEING CONDUCTED DUE TO FUEL CONTROL SYSTEM DESIGN, WAS NOT ADEQUATELY CONTROLLING, UNDER CERTAIN CONDITIONS, CARBON MONOXIDE EMISSIONS AND WITH MODIFIED FUEL CONTROL CALIBRATION, ENGINE CONTROL MODULE NEEDS REPROGRAMMING. MODELS 2008 AVALANCHE, SILVERADO, SUBURBAN, TAHOE, SIERRA, YUKON, YUKON XL. *PE
