Park Engine Off: Notes
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
When the gear selector lever is in the Park (P) position and the internal combustion engine is OFF, the fluid pump is commanded ON and line pressure is directed to the pressure regulator valve and other various components. The following steady-state conditions exist in the transmission's hydraulic and electrical systems.