Affected Component: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

Date Published
MAY 14, 2015
NHTSA TSB #
10089979
TSB Document
Summary
14581 - EMISSION RECALL. GENERAL MOTORS HAS DECIDED TO CONDUCT A VOLUNTARY EMISSION RECALL INVOLVING CERTAIN 2008 CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, AND TAHOE; AND GMC SIERRA, YUKON, AND YUKON XL VEHICLES EQUIPPED WITH CALIFORNIA BIN 4 EMISSIONS RPO NU5. THE DESIGN OF THE FUEL CONTROL SYSTEM DID NOT ADEQUATELY CONTROL CARBON MONOXIDE EMISSIONS UNDER CERTAIN OPERATING CONDITIONS. DEALERS ARE TO REPROGRAM THE ENGINE CONTROL MODULE WITH A MODIFIED FUEL CONTROL CALIBRATION.