After one week, I had a chance to check the tire pressures on the new 2012 GenIII Prius. The door jam label recommends the tires kept at 35psi Ft, 33 psi Rr as well as what the salesman told me here in phoenix told me. Yet the pressures I measured was @29.5 - 30psi for all four tires. This Toyota dealership should be insuring the the proper pressures from the factory. Even if there is an error from the factory to a heated weather state, both the Ft and Rr pressures were the same values. I went ahead on inflated the ft to 40psi and Rr to 38psi based on recommendations from this board in regards to getting higher mileage.