Tire Bubble problems of the 2012 Chrysler 200

My complaint concerns the goodyear eagle ls2 p225/50r18 94t s2 b01rptl m63hbhdr2711 tire. I've had this tires around 34,000 miles and on three of the tires the tread was separating causing unusual tread wear in spots and bubbling and a safety hazard. The bubbling was bad enough for me to notice a wobble in my steering wheel. I find such wear irregular and to happen on three tires all during the same period of time unusual. I have my car serviced at regular intervals and my service provider never found anything irregular about the wear on my tires until recently. Such swift and irregular wear should be recorded and acted upon because it does pose a risk hazard to drivers who may experience a blowout on the road due to the separation and bubbling.