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# SB-10246.
Affected Component: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
CHEVROLET/GMC: RADIATOR HOSE CONTACT. BULLETIN PROVIDES SERVICE PROCEDURE TO INSTALL PROTECTIVE SLEEVE OVER RADIATOR HOSE ON CERTAIN MODEL VEHICLES. ON THESE VEHICLES, RADIATOR INLET HOSE MAY CONTACT THE EDGE OF FAN SHROUD, RESULTING IN A POSSIBLE COOLANT LEAK. *PE UPDATED 3/16/11. *PE