Once existing the car the Officernoticed that my rear driver tire had expolded. This is what caused the accident and caused me tremendously back pain problems. The tires were purchase new from Firestone Complete Auto Care as we only purchased Firestone tires beginning with our first replacement tires until present.Thank God my life was spared. Unfortunately this is the second major conflict with Firestone and there defective products and maintenance schedules. Lexus rear automatic lowering up and down rear end system has product defects also. The brakes systems would not stop the Lexus 2004 GX 470. They would not stop as many times of previous stops.