I accidentally hit the DRIVER DOOR WINDOW ( NOT WINDSHIELD) with an umbrella on the inside, and it caused 2 hairline cracks, both an inch long, on the inside of the window on the driver door window. I am sorry for repeating, I just want to make sure i'm clear. The cracks can be felt upon on the inside of the driver door window with a finger, but not on the outside of the window, the outside of the window did not become affected, only the inside of the window has the crack. Its almost like its double layered, and only the inside of the window cracked, not the outside. My question is are the 2015 Hyundai Sonata Limited 2.0T windows temper glass? Can I leave it or should I replace it? The cracks arent deep, i just opened an umbrella in the car which sprung out and nailed my door window.