NHTSA Complaint #11437766 — 2018 GENESIS G80

275.35r19 96w Continental Procontact TX Between 12-15k miles I had my two front tires form sidewall bubbles. The first bubble resulted in a blowout. Now at about 24k miles I'm told by the dealer the tread on my rear tires is almost gone. One rear tire, also, loses air monthly. I drive mostly locally and my longest trips are not greater than 70miles. I park in my driveway rarely where anything can hit the sidewall. For four tires to fail at this mileage indicates to me there is a serious flaw with the manufacturing.