I have had my car for 30 days & after driving for about 5 miles this morning my tire warning light said the psi was at 19 for my rear driver side, seconds later it was a 0. i pulled into a gas station where we discovered a huge tear in the side wall of my tire. this is definitely a defect as i have not been in an accident or scrapped any curbs however, once i got it to the dealership they said that this had to be caused by me possibly hitting something. i think i would remember hitting something that would cause a slice across my passenger rear tire. so in a nutshell i was forced to buy a new tire $181.00 for a car i have had for 30 days. neither grossinger kia dealership or hankook tire would take responsibility. i was just about to get on the expressway and thank goodness the tire malfunctioned before i did.