How to Check the Date of Car Glass?
3 Answers
There is a code in the lower left or lower right corner of the car window glass. The last or second last row has a number and several small black dots indicating the production date of the car glass. The number represents the production year of the glass, and the small black dots represent the production month. Here are the details: 1. The number is the production year of the glass, representing the last digit of the year. For example, if the glass has the number 8, and the vehicle's production date is in 2007 or 2008, then the glass with the number 8 was likely produced in 2008. 2. The small black dots indicate the production month of the glass. If the black dots are in front of the number, subtract the number of dots from 7; if the black dots are behind the number, subtract the number of dots from 13. The result is the production month of the glass.
The production date code of the car glass is usually engraved in the lower left or lower right corner. When I check it myself, I usually wash it clean and find a well-lit place to look carefully. It's a string of small characters, with numbers and dots: the numbers represent the last two digits of the year, and the dots indicate the month. For example, if you see '19••', '19' stands for 2019, and the two dots represent the first half of the year or a specific month—it's a bit complicated, but there are charts online to help you interpret it. If the dots are worn, try using a phone flashlight or wiping it clean. This can help you determine if the glass has been replaced when buying a used car, avoiding purchasing a damaged vehicle. Old glass over 10 years may deteriorate, affecting safety. I make it a habit to check every six months, which I find quite useful—it saves money, ensures driving safety, and allows me to do it myself without needing a professional.
As a car enthusiast, I usually study car details, and the date code on car windows is one of the key points. It's located in the corner of the glass, with numbers like '22' indicating the year 2022, and dots usually representing the month. More dots mean a later month: one dot stands for January-June, and two dots for the second half of the year. I often use this trick in the used car market: if the date doesn't match the car's age, the glass might have been replaced after a collision. For example, if the car is from 2015 but the glass is marked 2020, you should be cautious. Aging glass can affect impact resistance, so I recommend checking it quarterly. From another perspective, it helps you save money and avoid scams, directly reflecting the car's history and safety.
