Where to Check the Production Date of Car Windshields?
4 Answers
Car windshield production dates can be found in the lower right corner of the front windshield. Car windshields are essential body accessories that primarily serve a protective function. There are mainly three types of car windshields: laminated glass, tempered glass, and zoned tempered glass. Laminated glass is a glass product made by bonding two or more layers of glass with one or more layers of transparent adhesive material. Tempered glass undergoes a process where low-temperature, high-speed air currents uniformly quench the glass, creating tensile stress inside the glass and compressive stress on the outer surface, resulting in the treated glass product. Zoned tempered glass is heated in a furnace to near its softening temperature, then rapidly transferred to air grids with varying cooling intensities for uneven cooling, creating different stresses in the main viewing area and the peripheral areas, resulting in the treated glass product.
Hey, when it comes to checking the production date of the windshield, we car owners can easily do it ourselves—it's not difficult at all. Usually, there's a string of small dots and numbers in the corner of the glass, either the bottom left or bottom right. For example, something like '··3 · 23'—the dots indicate the month position, with the first row of dots corresponding to the 12 months (a dot in the third position means March), and the '23' represents the year 2023. Why check this? Because older glass tends to age and can shatter more easily in accidents, which affects safety. My own car is a 2019 model, and last week I checked the windshield date and found it was manufactured in 2018. After a few years of use, it had developed small cracks, so I promptly went to a repair shop to get it replaced. I recommend checking the date when buying a car or taking a quick glance at the markings in the corner of the glass during car washes to avoid long-term issues. Small habits like this can save us a lot of trouble.
As for the production date location of this windshield, simply put, look for numerical markings in the four corner edges of the glass, most commonly in the lower left corner. The marking format is a combination of dots and numbers, with dots indicating the month position when placed before. For example, if there are three rows of dots in front, dots in the third row represent March, followed by the number '22' indicating 2022. From my car repair experience, aged glass over five years old is prone to cracking, posing significant safety risks. I recommend checking this date when replacing the windshield. For newly installed parts, ensure they match the vehicle's manufacturing year to avoid warranty or insurance issues. Routine inspection isn’t difficult—just wipe off dust with a cloth and use a phone flashlight in good lighting. Detecting issues early prevents road accidents; don’t wait until small cracks turn into big gaps to panic.
Where to check the production date of the windshield? I see many friends asking about this. Actually, you can find small dot codes at the corners of the glass edge. Those dots usually indicate the month, and the numbers represent the year. For example, '··2 · 21' means February 2021. Remembering this information is quite useful, especially during used car transactions, as it helps determine the condition of the glass. Old windshields are prone to aging, fogging, or cracking, which can impair visibility. It's recommended to occasionally wipe the edges and corners to check, while also maintaining cleanliness and safety.
