If you have a tire pressure gauge, unscrew the valve cap and check the tire pressure. If the pressure is below normal, you should drive at low speed to the nearest service station and restore the pressure to normal. If the tire pressure is higher than normal, reduce it to the required value. After checking and setting the tire pressure, be sure to tighten the valve cap. Air may leak through a valve without a cap. If you lose the cap, purchase a new one as soon as possible and screw it back on. After changing the tire, place the flat tire in the luggage compartment and put the tools and jack back in place.
Information is taken from a thematic website HYUNDAIBOOK