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# 101100.
Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
A CONDITION MAY EXIST WHERE A RATTLE NOISE FROM THE EXHAUST WITH THE VEHICLE STOPPED IN GEAR WITH THE BRAKES ON. THE NOISE SOUNDS LIKE A HEAT SHIELD RATTLE. *TT