Hyundai Santa Fe 2018: How to program the key fob?

Press the button on the key fob and remove the emergency key inside. Use a small flat-head screwdriver in the slot behind where the emergency key located to prise the case apart, turning in an anti-clockwise direction. Replace the CR2032 battery and snap the case back together. Reprogramming the key requires a professional locksmith or Hyundai dealership as specialist equipment is required to code the key.