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# PIE-0110.
CADILLAC/BUICK: ENGINEERING INFORMATION-DOOR LOCK (LATCH) REPLACEMENT. ENGINEERING ATTEMPTING TO DETERMINE THE ROOT CAUSE OF THE DOOR LOCK REPLACEMENT. *PE UPDATED ON 06/08/2011. *KB