A flush would be a good idea, but I would also swap out the Pressure Control Solenoid.
The P2714 OBD-II Trouble Code on your 2019 Chevrolet Malibu refers to "Pressure Control Solenoid 'D' Performance or Stuck Off." This code indicates that the Transmission Control Module (TCM) has detected a problem with the Pressure Control Solenoid 'D' in your transmission.
Here is a generic guide to help you step by step with instructions in the diagrams below to show you how on your car:
https://www.2carpros.com/articles/how-to-service-an-automatic-transmission
The Pressure Control Solenoids will have wires on them, check the colors in the images as well. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.
Images (Click to make bigger)
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Thursday, August 3rd, 2023 AT 11:16 AM