How to Read the Date on Car Glass?
2 Answers
To determine the production date of car glass: The glass is marked with numbers and black dots indicating the production year and month. The number represents the year, which can be determined based on the vehicle's manufacturing date. The black dots represent the month: if the dots are in front of the number, subtract their count from 7; if they are behind the number, subtract from 13 to get the month. Some glass may also have a few larger black dots following the production year and month, which indicate the specific week of the month. Relevant information about car glass: Introduction: Car glass is an essential part of the vehicle's body accessories, primarily serving a protective function. Classification: Car glass mainly falls into three categories: laminated glass, tempered glass, and zone-tempered glass, all capable of withstanding strong impacts. Based on their location, car glass is divided into four types: windshield, side window glass, rear windshield, and sunroof glass.
There is usually a small mark in the corner of the car glass, and to check the date, look for those dots or numbers. Typically, it’s a circle or square containing a two-digit year, such as ‘23’ for 2023, followed by dots representing the month—dots before the number indicate the month, for example, three dots mean March. Once when I bought a used car, I relied on this to check the windshield’s date. If all the glass dates on the car match, it means no accidents; inconsistencies should raise caution. This method can also be used during insurance claims to verify glass replacement times, preventing potential scams. During regular maintenance, pay attention to dust in the glass corners to avoid covering the marks. I recommend beginners learn this—it takes just five minutes to master and shouldn’t compromise safety.
