Tl* the contact owns a 2011 buick lucerne with custom built vogue radial ix tires, line size p235/55/r17 (n/a). the contact stated that when driving approximately 30 mph and above, the tires would wobble excessively. the vehicle was inspected by the dealer who advised that the tires were exhibiting flat spots and would need replacing. the tires were replaced. the failure mileage was approximately 5,500. updated 04/5/11*lj the consumer stated the tire have been replaced nine times updated 04/05/11