keep new seat when already a year old?


Active member
I bought a Harmony Defender seat yesterday, on January 2nd, 2014. The manufacture date is January 26, 2013. Would you keep a brand new seat that already has 1 entire year off it's use?

I looked for expiration and it says on the bottom that the seat expires 10 years after dom. Is this really true for the harness part too? Or just for the booster portion? So, it would expire January, 2023.

New baby is going to be born in March. I would like her to be able to use this seat ff until she turns 6, which is March, 2023, If it is really a 6 year expiration for the harness and we already lost a year, she won't make it until 6 years old in it. I do not want to buy another ff seat for my parents car. If it is really 10 years, it probably isn't worth messing with because by the time it expires when she is 9, I can just buy a cheap nbb. She might still need a booster through her 10 year old year, so I would have to get another booster anyway.

And just FWI, seat is for my 4 1/2 year old now in Grandmas car. I just want it to make it through all 4 kids. I am not using it for the new baby now! Also, Harmony needs to change the name. It is called the Harmony Defender Convertible seat, but it is not a Convertible seat!!


Active member
It was supposed to be $99 (I saw price online), but when I got home I saw that the seat was $70. There was no sign for price anywhere in store, no sticker with price or sale price on box. It was the last one. I don't know why it was on sale--you can't see when it expires by looking at box.


Well-known member
The defender has been out of stock at most walmarts for about 6 months and only became available again online a few weeks ago. I would venture to guess that any defender you find on any Walmart shelf right now will probably be a year old. But $70'is a great price for a seat you'll be able to use for 9 years!!


Active member
Awesome, thanks for the advice.

I haven't put the seat together yet, but I did get it out and look at it. It seems pretty nice for an inexpensive seat. I think it will be a good seat for my parents car.


New member
The manual does make any distinction about which parts expire at 10 years, so I'd say the whole seat is good for that long. If you paid full price, I'd be a little annoyed that it was already a year old, but it still has tons of life left with a 10 year lifespan.
With a 10 year lifespan, you've got more life left after one year than with most other seats out there bought a MONTH after their DOM. I'd keep it.

Car-Seat.Org Facebook Group

Forum statistics

Latest member

You must read your carseat and vehicle owner’s manual and understand any relevant state laws. These are the rules you must follow to restrain your children safely. All opinions at Car-Seat.Org are those of the individual author for informational purposes only, and do not necessarily reflect any policy or position of Carseat Media LLC. Car-Seat.Org makes no representations as to accuracy, completeness, currentness, suitability, or validity of any information on this site and will not be liable for any errors, omissions, or delays in this information or any losses, injuries, or damages arising from its display or use. All information is provided on an as-is basis. If you are unsure about information provided to you, please visit a local certified technician. Before posting or using our website you must read and agree to our TERMS.

Maxi Cosi is a proud sponsor of Car-Seat.Org!Graco is a Proud Sponsor of Car-Seat.Org!

Please  Support Car-Seat.Org  with your purchases of infant, convertible, combination and boosters seats from our premier sponsors above.
Shop travel systems, strollers and baby gear from Britax, Chicco, Clek, Combi, Evenflo, First Years, Graco, Maxi-Cosi, Nuna, Safety 1st, Diono & more! ©2001-2020 Carseat Media LLC