While driving, I got a message stating on the screen stating that transmission needed to be serviced. This was very scary as I slowed down and then was not able to put the vehicle in park and the parking brake was not able to be disengaged to be able to move the vehicle. After moving the transmission shifter back to different positions, I was then able to put the vehicle into Drive and then park it where it wouldn’t move after that. Dealership now says that there is an issue with the transmission valve body that needs to be replaced.