How to Check the Production Date of Car Glass?
2 Answers
Methods to check the production date of car glass: 1. The production date of car glass is usually marked in the lower right corner of the window or below the trademark. It is presented in the form of a single number, and the markings on the glass can provide information such as the brand, structure, specifications, and production date of the glass; 2. In the production date of the glass, the number represents the year. The black dots on the left of the number represent the production month. Black dots on the left indicate the first half of the year, while those on the right indicate the second half of the year; 3. If the black dots are on the left, subtract the number of dots from 7 to get the production month. If the black dots are on the right, subtract the number of dots from 13.
Last year I bought a used Toyota, and during a thorough inspection, I noticed a small label in the lower right corner of the windshield with something like '22•' written on it. Out of curiosity, I looked into it. Later, I figured out that the number represents the year—for example, '22' stands for 2022—and the small dot indicates the month. The specific rules are: when the dot is on the right side of the number, the count of dots equals the month, so one dot means January, two dots mean February, and so on; if the dot is on the left, it's a bit more complicated, usually subtracting the dot count from 12 to get the month. On my car, the dot was on the right, just one dot, indicating the glass was manufactured in January 2022. This helped me confirm that the car hadn’t been in any major accidents, as the original glass date should match the vehicle's production date. Checking this is simple for everyone: just wipe the corner of the glass clean with a wet wipe, shine a strong flashlight on it, and you’ll see it clearly. These labels are usually on the windshield or side windows—don’t overlook small details that can make a big difference.
