Angola throttle wire harness plug. What's the matter?

Does the subject want to ask "how to unplug the harness plug of Angola throttle?" ?

1 and 20 15 Buick Enceladus, there is a buckle in the rear taillight harness plug, and we need to press the buckle to take it out. If you pull it out hard, it is easy to damage the wire plug.

The first thing we have to do is to take apart the interior panel of the vehicle, so that we can directly see what is inside. If we have no relevant experience, it is better to find a reliable repair shop to disassemble it.