Shift Overlap Control
WARNING: This page is about a different car, the 2007 Lincoln Navigator L and 2007 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
The electronic-hydraulic shift action is obtained by means of various valves in the TCM and main control valve body, actuated by pressure regulators. They engage or disengage the relevant clutches or brakes at the correct moments.