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A brown-haired woman is looking at her infant child, sitting in a Thule Maple infant car seat in light grey.

Car Seat Expiration: How Long Are Car Seats Good For?

Keeping kids safe in the car is very important, and we all try to pick the best car seats for our youngest passengers. But here’s something you might not know: car seats don’t last forever. They actually have expiration dates, just like the food in your fridge.

In this guide, you’ll learn everything you need to know about car seat expiration. We'll talk about why car seats expire, why using an old car seat can be risky, and how to find and read the expiration date on your car seat. Keeping up with this information is a big part of keeping little ones safe on the road and we hope this guide will make it a little easier!


Do car seats expire?

The short answer is yes, they do expire.

There is no one rule on expiration dates for all car seats because not all brands use the same materials or build techniques. Instead, each manufacturer sets an expiration date for their car seats and ensures they meet the latest safety guidelines.

A young toddler sitting in a Thule Elm toddler car seat. A person's hands are near the toddler's straps.

Why do car seats expire?

The main reason car seats expire is safety. As safety standards for car seats continuously advance, older models become outdated and cannot be legally sold after a certain period due to an update in legislation. For instance, starting from September 2024, only car seats meeting the latest standard EN R129 are permitted to be sold. This ensures that parents can only buy car seats that adhere to the most up-to-date and rigorous safety standards.

Moreover, the materials used to make car seats degrade over time. Consequently, using an expired car seat may compromise its effectiveness in an accident, potentially endangering a child's safety.

A woman dressed in black is sitting on a wood bench next to the Thule Maple infant car seat in mid-blue with a sleeping baby inside of it.

How long are car seats good for?

Car seats typically last 7 to 10 years, depending on the manufacturer. To know for certain, look for a label on the car seat or refer to the user manual. On this label, you will usually find either an expiration date or a manufacturing date.

Expiration date vs manufacturing date

It’s important to be able to differentiate between these two dates. The expiration date indicates how long the car seat is good for, while the manufacturing date shows when the car seat was produced. You determine the expiration date by adding the manufacturer's recommended lifespan to the manufacturing date.

However, if you buy the car seat in advance and it remains in the box for 4 months before installation, there's no need for concern. Determining the expiration date typically involves two factors: the production date and the installation date in your car. You can accurately calculate the expiration date with these dates and the recommended car seat lifetime. This approach accounts for the fact that the car seat is not considered 'in use' until it is installed in your car, at which point it begins to experience various temperatures, movements, and usage scenarios.

Car seat usage

Besides the expiration and manufacturing dates, levels of use will also determine the lifespan of a car seat. Exposure to extreme temperatures, more frequent use than normal, or even incidents where the seat has been dropped could significantly impact the car seat’s condition and safety.

Regularly inspect the car seat for signs of wear and tear and If you notice any of the parts have been damaged, it’s important to replace the car seat for your child’s safety.

An orange-haired woman is smiling while looking at her baby. The baby is holding the woman’s finger and laying inside a Thule Maple infant car seat in mid-blue.

Where is the expiration date on a car seat?

Finding an expiration or a manufacturing date on a car seat or a base shouldn’t be too difficult to locate. It’s usually a sticker on the car seat base and car seat, or it’s embossed directly into the plastic. If you're having trouble locating it, have a look at the user manual or the manufacturer's website for more information. This sticker often includes other important information as well, such as the model number and manufacturer details.

For Thule car seats and bases, you will find a label at the bottom of the car seat or a car seat base and it looks like the example below. On this label, you will find the product number, followed by a manufacturing date with a year, month, and date, as well as a serial number.

Thule Maple infant car seat with an arrow pointing to bottom of it for the expiration date details.
A woman dressed in black is pushing a Thule Urban Glide 4 wheel stroller with a Thule Maple infant car seat in light grey on top of it in front of a large concrete wall.

If the expiration date is not visible or has worn off, get in touch with the car seat manufacturer. If you don’t know the expiration or the manufacturing date, it’s better not to use the car seat since it may no longer meet safety standards.


What to do with an expired car seat

If your car seat is out of date refrain from selling it on the secondhand market. Instead, check with the manufacturer if they have a recycling program for expired car seats or if they perhaps host trade-in events where you could bring the expired car seat and get a discount for purchasing a new product.

If none of these exist in your region, then make sure you dispose of them properly to prevent reuse. Don’t hand in an expired car seat to a charity shop or sell it on a secondhand market. Mark it clearly as “expired” and cut the straps or dismantle it before disposing of it. This way the car seat doesn’t risk being used by another family for an unsafe travel with their child.


The dangers of used car seats

In many cases hand-me-downs, second-hand items and recycling are great, but for the car seats, it’s quite the opposite.

Buying used car seats comes with risks. Without knowing the full history of how a car seat has been used or whether it has been involved in a car accident, exposed to extreme temperatures, or is missing parts, it significantly compromises the seat's safety.

If you do buy a used car seat, then at the very least try and buy it from someone you know, and trust. The person should be able to tell you when they first put the car seat in the car and whether the seat has been in any compromising situations in the past. This way you’ll be able to assure maximum safety for your child and your peace of mind.

An orange-haired child smiling while sitting in a Thule Elm toddler car seat.

Car seats and car accidents

In the unfortunate event of a car accident, the car seat plays a critical role in protecting your child. Even if the car seat doesn’t have visible damage, it may have sustained invisible damage that could affect its performance in future collisions.

Unless the car seat was involved in a car accident at a speed lower than 10km/h, at Thule we recommended to replace the car seat after any moderate to severe crash, even if it's within the expiration period. And if the car seat was installed on a base during the accident, then the base also needs to be replaced.

A toddler sitting in a Thule Elm rearward facing toddler car seat.

Conclusion

Car seats safeguard our most precious cargo. Understanding the expiration dates, recognizing signs of wear and tear, and knowing the history of a car seat you're considering are paramount. We hope this article has clarified any questions you had regarding car seat expiration and the overall lifespan of car seats.


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