Rinse Corned Beef and trim fat. Place in Pressure Cooker cooking pot. Add wine and water. Toss in garlic, oranges, Rosemary and fill with water to just cover Corned Beef.
Lock on lid and close Pressure Valve. Cook at High Pressure for 75 minutes. Allow a full Natural Pressure Release.
If adding in vegetables, remove the Corned Beef to a plate and cover with foil. Add vegetables to the Pressure Cooker cooking pot. Lock on Lid, Close Pressure Valve and Cook at High Pressure for 2 minutes. Carefully, do a Quick Release.