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# 990849008.
Affected Component: VISIBILITY:POWER WINDOW DEVICES AND CONTROLS
CUSTOMER MAY COMPLAIN THAT THE CHIME SOUNDS WHEN KEY IS REMOVED FROM IGNITION, INTERMITTENT OPERATION OF POWER DOOR LOCKS, KEYLESS ENTRY, STEERING COLUMN LOCK OR MEMORY SEATS. *TT