Cadillac STS 2006 transmission service

Remove the pan, or the drain plug in the pan. The fill plug is the torx plug on the left side toward the rear of trans. After draining and pan removal, replace the filter and pan gasket, fill through the fill hole while running until fluid runs out steady. The manua states that when fluid is up to that fill hole, and the temperatur of the fluid is 122 deg, that is full. That fill plug is difficult to get to to add fluid, you need a pump, and to locate the hot exhaust pipe near it presents another challenge. The torx size of both the drain and fill plugs is T-45.