Remove any meat from your chicken and set aside.

Place the chicken carcass in your Instant Pot and cover completely with water without exceeding the max limit line. Add the vinegar.

Secure the lid, select the "Soup/Stew" setting and set time to 45 minutes for a proper bone broth; 20 minutes if you just want a quick broth.

Natural release.

Carefully pour the broth through a sieve/strainer to remove the bones.