general problems of the 2005 Cadillac CTS

I purchased a used 2005 Cadillac in Dec. 2005 with six thousand miles. At 12000 I took the car to a dealer because of front end vibration and he said the good year tires had flat spots and recommended that I put another brand of tires on the car. After two months Cadillac has only agreed to replace two tires and I pay for two. All four tires are bad. Cadillac and the dealer has tried to place fault with me but I have complied with all the warranty requirements. These are defective tires and Cadillac will not cover their warranty.

Customer purchased a Cadillac with runflat tires and the tires were bad and customer wants goodyear to give him another set of tires* the consumer had run flat tires on his vehicle.