We bought a 2012 Hyundai Accent in late 2011. We absolutely love the car BUT we have had 2 catastrophic blow-outs of the tyres that came on the car where the tyre was literally blown apart. One happened when the car had less than 21,000 km on the clock and the other around 29,000. Both tyres had lots of tread left and the correct tyre pressure. Both happened on the highway at speeds of 100 - 110 km/hr. We have also had to replace another original tyre because of a bulge on the sidewall that was spotted on a regular tyre check. I removed the remaining undamaged tyre with still about 1/2 tread left.
One of the tyre shop owners who provided the last replacement tyre after a blowout in rural NSW said that Hyundai supplied Kumho tyres manufactured in North Korea for these cars, and that they have had hundreds with problems. He also said that Kumho tyres sold in Australia are manufactured in South Korea and are OK as far as he knew.
I am only repeating what the tyre shop owner said and I have no way of knowing whether the information is accurate or not. It would, however, be interesting to find out if others have had major tyre problems on original tyres and if this is a problem that needs to be addressed as to whether tyres coming on new cars from foreign factories meet Australian standards.