In a large bowl, mix together the garlic, vinegar, soy sauce, salt, and black pepper.
Add the ribs and coat with the mixture generously.
Refrigerate to marinate overnight.
In a shallow bowl, place the cornstarch.
Coat the ribs with cornstarch evenly and then drizzle with oil.
Grease the Air Fryer Basket with cooking spray and then slide inside.
Adjust the temperature of Air Fryer to 390 °F to preheat for 5 minutes.
After preheating, arrange the ribs into the greased Air Fryer Basket in a single layer.
Slide the basket into Air Fryer and set the time for 20 minutes.
While cooking, flip the ribs once halfway through.
After cooking time is finished, remove the ribs from Air Fryer and serve.