Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# 290801.
Affected Component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
SUBJECT REGARDING CALIBRATIONS AVAILABLE TO CORRECT UNRESOLVED DIAGNOSTIC TROUBLE CODE P0014, DELAYS IN TRANSMISSION DOWNSHIFTING AND COMPLAINTS OF FAN NOISE. *TT