Tire Sidewall problems of the 2004 Chevrolet Tahoe

Sigma stampede radials for my 04 Tahoe were purchased in Feb. 2009 when my truck had 86,000 miles. The tires were supposed to have a 65,000 mile warranty. At 133,00 miles, the front right tire came apart on the interior side wall all the way around with 1 separation on exterior side wall. No injury or damage occurred because I always drive slowly and was on city street at time. Inspection of other 3 tires shows many slits/cracks on exterior sidewalls of 2 of 3 tires. Seller has done some compensation. However, I think the tire needs to be recalled. The situation of the tire coming apart could be very serious at high speed.

While drive a 2004 Tahoe with approx. 14, 000 miles on tires, proceeding on a smooth, flat secondary road at approximately 35-40 mph, low tire pressure sensor alarm registered on the dash panel. Within 30 seconds of the alarm the tire went flat from a sidewal failure of approx. 4 inches long. I drove approx. 1/4 mile on the rim/sidewall to gain a safe place to change the flat. After waiting for over an hour for gm roadside assistance, I changed the tire myself with the aid of a local resident. After contacting gm dealer, northstar Chevrolet clifton park, NY, district service director said that the faliure was from road hazard and would not pay for replacement [$181. 39]. The service director said the failure was from the outside in, good man could tell this with a tire which was driven on the sidewall for approx. 1/4 mile. I still have digital pictures of damage tire.