Is It Safe to Buy a Used Car Seat? What Parents Need to Know
This article was reviewed by Amanda Brown, CPST.
Car seats are one of the biggest baby gear purchases we make as parents, and it makes sense to look for ways to save. A brand-new convertible car seat can run $300 or more, so buying a gently used car seat sounds like a smart move. But most of us have heard the warnings, and the hesitation is real. Can you actually buy a used car seat safely? The short answer: yes, but only if you know what to look for and where to buy.
This guide covers everything parents need to know before buying a secondhand car seat, including the safety checklist, how to spot red flags and why where you buy matters more than almost anything else.
Is It Safe to Buy a Used Car Seat?
Yes, it is okay to buy a used car seat, with the right precautions. A gently used car seat that has never been in a motor vehicle crash, is not expired, has not been recalled and includes all its original parts can be just as safe as a new one.
Before buying a secondhand seat, check for things like:
- Age of the seat
- Wear and tear
- Expiration date
- Crash history
- Recalls
- If the seat has all its parts
- If the seller is a trusted source
For things like vehicle motor crash history, you’ll need to ask the seller for the car seat’s history. For things like expiration date, wear and tear and parts included, you can tell by looking at the seat’s model number and general appearance.
The problem is that most of the secondhand car seat market, think Facebook Marketplace or random online listings, gives parents no way to verify any of that. That is exactly why GoodBuy Gear created the GoodBuy™ Car Seat Safety Check. It is the first proprietary safety inspection process of its kind in the resale market, developed over an extensive 12-month research and testing period with a car seat design, engineering and safety consultant.
At GoodBuy Gear, we only sell gently used car seats that have passed our GoodBuy™ Car Seat Safety Check. Our Director of Customer Care, Amanda Brown, who is also a certified Child Passenger Safety Technician (CPST) oversees our GoodBuy™ Car Seat Safety Check process, which is performed by GoodBuy Gear certified technicians on every gently used car seat before it is listed for resale. Learn more about the GoodBuy™ Car Seat Safety Check here.
Should You Buy a Used Car Seat? The Pros and Cons
For most families, buying a gently used car seat from a trusted, vetted source is a smart call, but the uncertainty may lead some parents to the store for a new one instead. Let’s dive into the pros and cons of buying a used car seat.
What makes it a good choice
- Less expensive than buying a new seat. You can save an average of 55% off retail by shopping gently used car seats with GoodBuy Gear
- Premium brands like Nuna, UPPAbaby and Chicco are available at a fraction of retail price
- Shopping secondhand reduces the carbon footprint of a single item up to 82%
- It provides better access to quality car seats from trusted brands that are built to last through multiple children
What to keep in mind
- Peer-to-peer marketplaces cannot verify crash history or safety inspection, so those purchases carry more risk
- A car seat close to its expiration date may need to be replaced sooner than you expect
- Always buy from a source that can confirm the seat has never been in a motor vehicle crash
Used Car Seat Safety Checklist: What to Check Before You Buy
Whether you are buying from a friend or a resale marketplace, run through this checklist before making your purchase.
1. Confirm it has never been in a motor vehicle crash
This is the most important factor. A motor vehicle crash, even a minor one, can affect the structural integrity of a car seat in ways that are not visible to the naked eye. The NHTSA has specific guidelines around car seat use after a crash, and in many cases a seat involved in a moderate or severe crash should be replaced (especially if the airbags were deployed).
Always ask the seller directly. If you are buying from GoodBuy Gear, all sellers sign a legally binding attestation certifying they are the original owner and that the seat has never been in a crash. That is a layer of accountability you simply do not get from a peer-to-peer listing.
2. Check the expiration date
Car seats expire. Over time, the materials in a seat can degrade, and safety standards evolve. Most car seats have a lifespan of six to 10 years from the manufacture date. You can usually find the expiration date printed on a label on the back or bottom of the seat.
If a seat is expiring within the next year or two, weigh whether a gently used purchase still makes financial sense. All car seats accepted for resale at GoodBuy Gear must be more than two years from their expiration date.
3. Make sure the seat has not been recalled
Manufacturers issue recalls when a part or feature is found to be potentially unsafe. You can look up any car seat on the National Highway Traffic Safety Administration (NHTSA) website using the seat's model number or VIN, which will be on the white sticker or label on the back or bottom of the seat. GoodBuy Gear closely monitors for recalls and ensures all gently used car seats accepted for resale have not been recalled.
4. Verify all parts and labels are present
A car seat needs all of its original parts to function properly. Check that the harness, chest clip, base and any included accessories are present and in good condition. You should also have access to the original owner's manual for proper installation guidance. If the manual is lost, you can often find a PDF on the manufacturer's website.
As part of the GoodBuy™ Car Seat Safety Check, GoodBuy Gear certified technicians verify that all necessary parts and labels are present according to the car seat manual.
5. Buy from a trusted source
Where you buy a gently used car seat matters just as much as what you buy. A trusted friend or family member who can vouch for the seat's full history is an OK option. However, a vetted resale marketplace with a documented safety inspection process offers an extra layer of confidence.
GoodBuy Gear is the first resale marketplace to develop a proprietary quality check process for gently used car seats. Our GoodBuy™ Car Seat Safety Check gives parents who want to buy gently used car seats access to the top brands for less, with the transparency and accountability the secondhand market has been missing.
You can learn more about our safety standards here and our proprietary 30-point safety check here.
How to Tell if a Car Seat Has Been in a Motor Vehicle Crash
There is no foolproof way to tell by looking at a seat whether it has been in a crash. Structural damage can be invisible. That is what makes this so tricky when buying from a stranger.
Here are a few things you can look for as a starting point:
- Visible cracks or deformities in the plastic shell, even small ones
- Missing or damaged labels, which can indicate the seat was in a crash or improperly handled
- A harness that appears stretched, frayed or replaced
- A seller who cannot confirm the seat's history or who is vague about how it was used
When in doubt, do not purchase. A car seat is not the place to gamble on incomplete information.
Where to Buy Used Car Seats Safely
Not all secondhand car seat options are created equal. Here is how the main options stack up.
Trusted friends or family
If someone you know personally can confirm the seat's full history, including crash history, expiration date and storage conditions, this can be a reliable option. Just be sure to still run through the full checklist.
Peer-to-peer marketplaces
Buying a gently used car seat from a peer-to-peer marketplace like Facebook Marketplace comes with real risk. There is no safety inspection process, no verification of crash history and no accountability if the information provided turns out to be incorrect. If a deal seems too good to be true, it often is.
GoodBuy Gear
GoodBuy Gear offers a safer way for parents to shop gently used car seats. Every seat goes through the GoodBuy™ Car Seat Safety Check, a proprietary 30-point safety inspection process developed over an extensive 12-month research and testing period. Sellers sign a legally binding attestation confirming the seat is crash-free. And our CPST, Amanda Brown, oversees the entire process.
We also sell new and open box car seats for families who prefer that option. You can save an average of 55% off retail when you shop open box car seats with GoodBuy Gear.
Can You Sell Used Car Seats?
Yes, you can sell a gently used infant seat if you’re confident it’s in working condition, it isn’t expired or recalled and hasn’t been in a crash. Before listing your seat for sale, look for the instruction manual, check its expiration date and look to see if it’s been recalled. If it’s far from expiration and is in safe, working condition, you can look into selling it to another family.
Want to sell your gently used car seat with us? Read our guide to selling a used car seat to learn if yours qualifies for resale.
Frequently Asked Questions
Is it okay to buy a used car seat?
Yes, it is okay to buy a used car seat as long as it has never been in a motor vehicle crash, is not expired, has not been recalled and includes all original parts. Buying from a trusted source with a documented inspection process gives you the best peace of mind.
How can I tell if a used car seat is expired?
Check the label on the back or bottom of the seat. Most manufacturers print the expiration date or manufacture date directly on the seat. Car seats typically expire six to 10 years after the manufacture date.
Are used car seats safe to buy on Facebook Marketplace?
Buying a gently used car seat from a peer-to-peer marketplace carries more risk than buying from a vetted resale source. There is no safety inspection process and no way to independently verify the seat's history. If you choose to go that route, ask for the full history, run through the complete safety checklist and trust your gut if something feels off.
The Bottom Line on Buying a Used Car Seat
Buying a gently used car seat is a smart, sustainable way to save money on one of the most essential pieces of baby gear, when done right. The key is knowing what to check, knowing what questions to ask and buying from a source you can actually trust. If you want to skip the guesswork, you can confidently shop brand new, open box and gently used car seats at GoodBuy Gear for an average of 55% off retail.
Want to learn more about our proprietary GoodBuy ™ Car Seat Safety Check process? Click here: https://goodbuygear.com/pages/gently-used-car-seats
Have questions about your specific car seat? Book an appointment with a CPST through Tot Squad to get the professional help you need.