How to Read the Date on an Auto Tire
- 1). Look for letters on the sidewall each tire called the "DOT" code. These letters represent the identification number of the tire and reveals where and who manufactured it. If you do not see a "DOT" code, look for an ellipse or circular shape or a rectangular shape on the tire with a code in it. If you still do not see a code, check the side of the tire facing in.
- 2). Read the last four digits in the ellipse or after the "DOT" code. This represents the tire manufacture date. The first two digits refer to the production week and the last two digits represent the year.
For example, if the last four digits are "1203," you know the tire was manufactured on the 12th week of the year 2003 or around the end of March 2003. - 3). Do the math. The NHTSA reports that tire and vehicle manufacturers recommend replacing tires that are between six and 10 years old, depending on the car or type of tire, even if the tires spent some of their lives sitting on a store shelf.
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