How to Check the Production Date Through Car Windows?

[DeWalker]

There is a code in the lower left or lower right corner of the car window glass. The last or second-to-last row contains a number and several small black dots, which indicate the production date of the glass. The number represents the production year of the glass, showing the last digit of the year, while the small black dots indicate the production month. Here are the details: 1. Month: If you carefully observe the glass of other vehicles, you will notice that some have the small black dots before the number, while others have them after the number. If the dots are before the number, subtract the number of dots from 7; if they are after the number, subtract the number of dots from 13. The result is the production month of the glass. 2. Week: Some glass may also have a few larger black dots following the production year and month, which specify the week of the month. For example, 5 dots represent the first week; 4 dots represent the second week; 3 dots represent the third week, and so on.