How to Check the Production Date Through the Car Window?

[Tricia]

Method to check the production date through the car window: There is a code in the lower left or lower right corner of the window glass. The last or second-to-last row contains a number and a few small black dots, which indicate the production date of the glass. The number represents the last digit of the production year, and the small black dots are used to determine the production month of the glass. It is normal for the front and rear windshield codes to differ, as they are different types of glass with different manufacturer part numbers. Generally, the glass code consists of a combination of symbols, numbers, and English letters printed in the lower left corner of the glass. This includes information such as the car brand, glass brand, certification marks, glass type, and production date.