To begin, sprinkle the roast halves with salt & pepper.
Push the “Sauté” button on the Instant Pot and add the oil.
When the oil is hot, place one half of the roast in the pot and let it sit undisturbed for 2-3 minutes. Turn it over and let it sear on that side as well.
When that half is done, place it on a plate and repeat with the other half of the roast.
Toss in the garlic cloves and onion wedges. Let them cook until they develop a little color in spots. Scoop them out to a dish.
Pour in the red wine and with a wooden spoon, loosen all of the brown bits in the bottom of the pot. Turn off the Instant Pot.
Place the roast halves back into the pot along with the onion & garlic. Pour in the beef broth.
Add in the thyme, rosemary, parsley, and bay leaves along with the carrot pieces.
Close and seal your Instant Pot. Press the “manual” button for pressure cooking. Set this to 90 minutes at high pressure. Let it run its cycle along with the cooling/depressurizing time.
For the Gravy:
When it is finished if you would like to have gravy, ladle the liquid through a sieve into a sauce pan. Mix about 3 tablespoons of corn starch with 2/3 cup of cold water in a small dish.
Bring the liquid to a gentle boil and pour in half of the cornstarch mixture. Stir and allow it to boil and thicken. If you would like it thicker, add more of the cornstarch mixture.