Silverado 1500 4WD V8-6.0L Hybrid (2009)
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.