2013 CHEVROLET TRAVERSE Wheels Problems

I HAVE A 2013 CHEVY TRAVERSE THAT HAS MASSIVE CRACKING AROUND THE WHOLE TIRE BOTH ON THE INSIDE 1ST RIB AND THE OUTSIDE RIB, I FOUND CRACKS RUNNING ACROSS THE WEAR INDICATORS, I NOTIFIED THE DEALERSHIP WHO AFTER FINDING A RECALL (THE RECALL WAS FOR YEARS NOV 14 TO JAN 15) AGREED THE DESCRIPTION GIVEN BY GOODYEAR FOR THESE TIRES (P255/65R18 1095 FORTERA HL) ASKED FOR THE CAR SO THEY COULD REPLACE THE TIRES. AS OF YESTERDAY GOODYEAR CLAIMS ALL THE ISSUES ARE FROM OZONE CRACKING AND THEY ARE NOT LIABLE FOR THIS, EVEN THOUGH BY DEFINITATION THIS OCCURS ON THE OUTSIDE SIDEWALL NOT THE INSIDE OF THE TREAD OR ACROSS THE WEAR INDICATORS, I HAVE REPEADEDLY ASKED ABOUT THE 6 YEAR WARRENTY THAT IS SUPPOSE TO BE ON THESE AND STILL HAVE NO REPLY, I DO KNOW THERE ARE MULTIPLE COMPLAINTS FILED AGAINST THIS SPECIFIC TIRE FROM 2012 FORWARD...