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# 150603002H.
Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers
Correct battery cold cranking amperage (CCA) ratings
and type are critical for proper test results when using
the EL-50313. Access to the battery specification label,
which contains the OEM part number and CCA rating
and type, may be difficult without component removal.
Refer to the table below for the original equipment
ratings and part numbers used to set up a proper
battery test. There has been some confusion as to the correct ACDelco battery warranty replacement. Refer to the table below for the correct battery warranty replacement.
The correct ACDelco battery warranty replacement in the catalog is designated by the "Original Equipment
Replacement" note in the description field.