Add oil to a hot pan on the stove and brown all sides of your pork roast.
Season the roast with the pork rub.
Add the meat to the pressure cooker with 1 cup of water. Allow the roast to cook on high pressure for about 45 minutes.
After 45 minutes, perform a quick release of the pressure then carefully open the lid. Toss in the carrots and potatoes. I usually toss some rub over my vegetables for extra flavor. Cook on high pressure for another 15 minutes.
Perform another quick release and temp the roast to at least 145 degrees. Enjoy!