Bought our new 2011 Sienna back in May 2010 and within the first 3 weeks had a major crack in the windshield. Used my insurance to get it replaced after the dealer insisted "this happens". Five months later, we had another major crack in the windshield in almost the same exact spot. This time I insisted they would need to replace this one since this is not normal. LOVE everything else about my Sienna, just cannot afford to replace the windshield 2-3 times a year, especially since it is heated. Anyone else have this problem?