SeatCheck
All-in-one car seat

Britax One4Life expiration

The Britax One4Life expires 10 years after its date of manufacture.

Useful life
10 years
Type
All-in-one
Brand policy
6–10 years

Check your One4Life

What to know

Britax all-in-one seats expire 10 years from the date of manufacture. The serial label is on the top side of the ClickTight compartment under the cover.

The date of manufacture is on the seat itself. The date of manufacture (and on newer seats the expiration date) is on the serial label. Its position varies by model: underside of the shell next to the harness slots on infant seats, back of the seat under the tether hook on ClickTight convertibles, top of the ClickTight compartment under the cover on One4Life, the outside of the headrest on Grow With You models, and under the cover at the front corner on Highpoint and Skyline boosters.

Safety note: SeatCheck summarizes manufacturer and NHTSA guidance, but the label on your own seat and its manual are the final word. When in doubt, contact the manufacturer with your model and serial number.

More about Britax seats

Full policy, label locations and crash-replacement rules on the Britax brand page.

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Frequently asked questions

How long is the Britax One4Life good for?
The Britax One4Life has a useful life of 10 years from its date of manufacture. The exact date is printed on the seat's own label, so check the sticker on the shell or base rather than counting from the purchase date.
Where is the expiration date on the Britax One4Life?
The date of manufacture (and on newer seats the expiration date) is on the serial label. Its position varies by model: underside of the shell next to the harness slots on infant seats, back of the seat under the tether hook on ClickTight convertibles, top of the ClickTight compartment under the cover on One4Life, the outside of the headrest on Grow With You models, and under the cover at the front corner on Highpoint and Skyline boosters.
Should I replace the One4Life after a crash?
Britax follows the NHTSA criteria. A seat involved in a moderate or severe crash must be taken out of service immediately. After a minor crash, the seat can stay in use only if all five NHTSA conditions are met: the vehicle could be driven away, the door nearest the seat was undamaged, no one was injured, no airbags deployed, and the seat has no visible damage. If any condition fails, treat it as moderate to severe and replace the seat.

Sources