SeatCheck
Booster car seat

Nuna LUMN expiration

The Nuna LUMN expires 10 years after its date of manufacture.

Useful life
10 years
Type
Booster
Brand policy
7–10 years

Check your LUMN

What to know

The LUMN is Nuna's harness-to-booster seat, forward facing at 30 to 65 pounds and then a belt-positioning booster at 40 to 110 pounds. Its manual says not to use the child restraint if it is more than 10 years old and points to the label or the stamped do-not-use-after date on the bottom of the seat. That 10 years covers both modes, so a LUMN that ages out while your child is still riding in booster mode is finished either way. Aircraft rules split by mode: the manual certifies it for use in aircraft in harness installation and states it is not certified for aircraft use as a booster.

The date of manufacture is on the seat itself. The model number, date of manufacture, and stamped do-not-use-after date are on a label on the bottom of the child restraint (and on the underside of the base for seats sold with one). Nuna also prints this information on the registration card packed with the seat.

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 Nuna seats

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

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Frequently asked questions

How long is the Nuna LUMN good for?
The Nuna LUMN 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 Nuna LUMN?
The model number, date of manufacture, and stamped do-not-use-after date are on a label on the bottom of the child restraint (and on the underside of the base for seats sold with one). Nuna also prints this information on the registration card packed with the seat.
Should I replace the LUMN after a crash?
Nuna's US manuals reproduce the NHTSA criteria: never use a seat that has been in a moderate or severe crash, while a seat may continue in use after a minor crash only if the vehicle drove away, the door nearest the seat was undamaged, no one was injured, no airbags deployed, and the seat has no visible damage. Nuna also says to stop using a seat with frayed straps or damage from any crash and to call 1-855-NUNA-USA with questions.

Sources