Stress Windshield cracking on an 07 Yaris

[LittleSilver]

Forgive me if this has been asked before and if you would kindly point me in the right direction if it has but...

I still have in my possession an '07 3 door Yaris and one day about six months ago I walk out the front door to run some errands and I see a rather large crack running up the window and making it's way to the right hand side in a heart shaped pattern. The car had not been driven for three days prior and hadn't been on the freeway (to be hit with a rock or what not) in well over a week. It was a sudden and unexpected crack!

What I was wondering is if the older models had issues with developing stress cracks in the windshields? Can I take it to Toyota to get it fixed if it is a manufacturing problem rather than me spending a ton to get a new one?