2002 Toyota Sienna tires problems

Dt*: the contact stated while driving 70 MPH, the right rear tire tread separated from the belt and the vehicle went into a ditch. A police report was taken and no injuries were sustained. The tires were regularly serviced prior to the incident. There was no warning prior to the separation. Updated 12/18/2006 -

Driving south on I-15 north of las vegas, tire tread on passenger side rear wheel separated without warning. It was a hot day (around 110 degrees) and the highway speed there is 75 m.p.h. The tread flew up and smashed the side window of the sienna minivan, tore off part of the side fender and damaged the sliding door. The tires had been well maintained and had been inpected within the previous month at the toyota dealer.