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# TB-09-07-30-009.
Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION
GENERAL MOTORS: AN AUTOMATIC TRANSMISSION CONCERN OF NO MOVEMENT, NO REVERSE OR SLIPPING. THESE CONCERNS MAY BE DUE TO AN ISSUE WITH THE DIRECT CLUTCH. *PE