Quality issue

Purchased 2 months back. In parking condition and am sitting inside heard a sound and found back windshield cracked and crumbled without any reason. When taken to Lakshmi Hyundai, Hyderabad..they started forcibly convincing me that something fell on it and this cant happen on its own hence forced me to go for insurance claim for a manufacturing defect. I am shocked and horrified with the safety and security features and the HYUNDAI SERVICE STANDARDS. Would suggest to check all glasses even the joints before finally taking hand over because after that no responsibility will be accepted by the company even within warranty...hence also suggest not to go for extended warranty as these are false promises to increase revenue. Shifted to Hyundai from Maruti and now realising some mistakes: Shifting itself; Paid full amount( finance option) hence cant change immediately; purchasing a new model with no/few feedback in market- this risk can be taken with Honda or Maruti.