How old are my tires?

Understanding the age of your tires is crucial for your safety.

Posted January 17, 2024

Do you know how old your tires are, and are they still safe for the road? Tires play a crucial role in your vehicle’s safety and performance, and understanding their age is essential for making informed decisions about when to replace them. In this article, we’ll explain how to determine your tire’s age, why it matters, and when it’s recommended to replace them.

How to Determine Tire Age

Tire age is determined by the date of production, which is marked on the tire’s sidewall as part of the Department of Transportation (DOT) number. This number provides valuable information, including the week and year of manufacture. Here’s how to find and interpret it:

Locate the DOT Number: Inspect the sidewall of your tire to find the DOT number. It is a series of characters usually located on one side of the tire.
Identify the Last Four Digits: In the DOT number, the last four digits are crucial for determining the tire’s age. The first two of these digits represent the week of production, while the last two digits indicate the year.

For example, if the last four digits of the DOT number are “1317,” it means the tire was manufactured in the 13th week of 2017.

Why Tire Age Matters

Tire age matters because tires deteriorate over time, even if they have not been used extensively. Factors such as exposure to sunlight, temperature fluctuations, and the conditions in which the tires are stored can all impact their structural integrity. Here are a few reasons why knowing your tire’s age is essential:

Safety: As tires age, their rubber compounds harden and become less effective at providing grip and traction. This can result in reduced handling, longer braking distances, and an increased risk of accidents.
Performance: Aging tires can negatively impact your vehicle’s performance, affecting its ability to handle corners, maintain stability, and navigate various road conditions.
Durability: Older tires are more prone to damage and failure, increasing the likelihood of flats or blowouts. This can be particularly hazardous when driving at high speeds.

When to Replace Tires

While there is no specific expiration date for tires, it is generally recommended to replace them when they reach between 7 to 10 years from the date of production, depending on the conditions they have been subjected to. Tires that have been well-maintained and stored in ideal conditions may last closer to the 10-year mark, while those exposed to harsher conditions may need replacement sooner.

Understanding the age of your tires is crucial for your safety and the overall performance of your vehicle. Regularly check the DOT number on your tires to determine their age, and consider replacing them when they reach 7 to 10 years from the date of production, even if they appear to have ample tread. Prioritizing tire safety is a responsible and essential aspect of vehicle maintenance that can help keep you and your passengers safe on the road.

Questions? Our Advisors are Happy to Help!

If you have questions about anything you've read in this resource page, contact your nearest dealer for more information. We are passionate in assisting our customers make the best choices to keep their vehicles in tip-top shape and keep their families safe.