Tire Blowout problems of the 2007 Buick Lacrosse

Driving 70 mph on interstate and had blowout due to splitting of goodyear eagle LS 2 tire with only 28000 miles. Tires purchased on new 2007 Buick Lacrosse with 0 miles. Could have caused wreck and possibly death. This happened again on 9-6-20210 same situation on a second tire. Goodyear would not replace all 4 tires even though 2 blew out due to splitting of tire. Goodyear only pro rated the two that were blown and I would have to wait until others blow. This is too dangerous and goodyear needs to be responsible. If the others blow and there is wreck or injury there will be a lawsuit and want it noted that I have reported and tried to do something about bad tires. Only have the dot # for the second tire only because goodyear dealer kept the first blown out tire. I have not let them have the second tire yet. I am trying to work with gm to get some help with getting all tires replaced. Gm first told me to go to goodyear but now with the second tire a month later I am really concerned for my and others safety. The consumer stated the dealer and gm decided to replace the remaining three tires as a customer satisfaction gesture. Updated ivoq 10/13/jb.