CTS Sedan AWD V6-3.0L (2010)
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
Note: The front TPA cannot be removed from the connector. Only move it to the preset position.
6. Use a small flat-blade tool to move the front TPA to the preset position, outboard approximately 0.125 in. (3 mm).
7. Use a small flat-blade tool to completely remove the rear TPA from the connector.