About 3 years ago I started experiencing cracking in my windshield. My insurance company replaced it 4 times through is authorized rep. When it cracked the fifth time, I took it to the dealership and when they removed the top part of the assembly you could see that a deformation in the structure on the top left. They grinded it down, replaced the windshield and no problems since. Manufacturing defect. My car is a 2005.