How to Check the Production Date of Lexus Glass?

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Lexus glass production date is indicated by the string of numbers following "NSG.M" with an underscore. Generally, there are two representation forms. Below is a detailed introduction to the two forms of Lexus glass production date: 1. The form of numbers + dots, where the dots can be in front of or behind the numbers. The reading method for this form is simple: the number represents the year, and the dots represent the month. If the dots are in front of the number, it indicates the first half of the year. Subtract the number of dots in front from 7 to get the month in the first half. If the dots are behind the number, it indicates the second half of the year. Subtract the number of dots behind from 13 to get the month in the second half. This method can be used to read the production date of 80% of vehicle glass on the market. 2. The form of numbers + small dots + large dots. The reading method is as follows: the number represents the year, the small dots represent the quarter (there are 4 quarters in a year, with a maximum of 4 small dots), and the large dots represent the month within the quarter (a quarter has 3 months, with a maximum of 3 large dots). A few vehicle models use this method.