How long car seats last

Federal law requires the month and year of manufacture on the label. Expiration is the manufacturer’s own policy, not a federal rule.

So the answer to "how long does a car seat last" is not one number and it is not a legal one. It is whatever the company that built the seat states for that seat, measured from the date of manufacture printed on its label. Across the makers listed below, the stated figures run from 6 to 12 years.

Why makers put a limit on it at all

Three reasons come up in the makers' own explanations. A seat is a moulded plastic shell that spends years in a parked car, cycling between summer heat and winter cold. The parts that take the load — harness webbing, buckles, adjusters, the seat pad — are worn by ordinary daily use. And the standards, the vehicles, and the hardware move on, so a shell built a decade ago was built to a different specification than one on the shelf today.

A useful life is how a maker draws a line under all of that: a period it is willing to stand behind, after which it stops supporting the seat. Graco puts its own reasoning plainly on its expiration page — "Due to frequent changes in vehicles, regulations, safety technology and general wear and tear, Graco recommends not to use a car seat past its expiration date." That figure is set per maker, and often per seat within a maker: by category, by mode, or by how the belt path is built. Which is why the table has more rows than it has brands.

What each maker states

Maker Stated useful life What that figure covers Read from
Baby Trend 6 years Infant car seat & base — the EZ-Lift and Secure-Lift are listed separately babytrend.com · checked 2026-08-27
7 years EZ-Lift & Secure-Lift infant car seat & base
7 years Trooper 3-in-1 Convertible
7 years Cover Me 4-in-1 in harness mode
9 years Cover Me 4-in-1 in booster car seat mode
6 years Hybrid with harness
6 years Hybrid with high back booster (no harness)
10 years Hybrid Backless Booster
6 years Car seats at large, on Baby Trend's consumer-education page at /pages/car-seat-safety — not a figure for a named Baby Trend seat
Britax 6 years Infant car seats and infant car seat bases with ClickTight — the Willow, Willow S, Willow SC and Cypress seats and the Aspen and Alpine bases, the models Britax's expiration guide lists us.britax.com · checked 2026-08-27
9 years Harness-2-booster seats — the Grow With You, Grow With You ClickTight and Grow With You ClickTight Plus, per Britax's expiration guide
10 years ClickTight convertibles (Poplar, Poplar S), all-in-one seats (One4Life, One4Life Slim) and belt-positioning boosters (Highpoint, Skyline), per Britax's expiration guide
10 years Retired ClickTight convertibles that Britax's expiration guide does not list — the Marathon ClickTight and the Advocate/Boulevard ClickTight, read from their own Britax user guides (rev. 05.22)
6 years The B-Safe Gen2 infant car seat and base, read from its own Britax user guide (P13118600_A, rev. 01.21)
6 years The B-Safe 35 and B-Safe 35 Elite infant car seats and bases, read from their own Britax user guides
Chicco 6 years Infant car seats, as stated on Chicco's infant car seat guide; the "Designed Lifespan (from Date of Manufacture)" table on Chicco's "Common Car Seat Questions, Answered" article lists the same 6 years for the category chiccousa.com · checked 2026-08-27
8 years Rotating convertible seats, harness boosters and boosters — the three rows listed at 8 years in the "Designed Lifespan (from Date of Manufacture)" table on Chicco's "Common Car Seat Questions, Answered" article, headed "Rotating Convertible Car Seats", "Harness Booster Seats" and "Booster Car Seats". The quote is the sentence introducing that table; the 8 is the row value
8 years The NextFit convertible car seat, per the "Check Condition of Restraint" warning in Chicco's NextFit Convertible Car Seat User Guide (IS0122.2E, (c)2016 Artsana USA, Feb 2017)
10 years The Fit4 4-in-1 car seat, per the "Check Condition of Restraint" warning in Chicco's Fit4 user guide ((c)2019 Artsana USA)
8 years The NextFit Zip convertible car seat, per the "Check Condition of Restraint" warning in Chicco's NextFit Zip Convertible Car Seat User Guide (IS0171E_02, (c)2019 Artsana USA, 03/19)
Clek 9 years All Clek car seats — the figure Clek's support-site expiry article states for the whole line, with no breakdown by category or shell construction support.clekinc.com · checked 2026-08-27
9 years "Our seats" — the note repeated on Clek's per-model date-of-manufacture articles for the Foonf and Fllo (convertibles), Oobr (booster), Ozzi (backless booster) and Liing (infant); the Oobr, Ozzi and Liing articles word it with the numeral "9"
9 years "this car seat" — the Foonf convertible, stated in the Foonf US/EN instruction manual (Tier 2: manufacturer's manual)
Cosco 8 years Convertible seats, as stated in the Scenera NEXT user guide effective 07-16-19 consumercare.coscokids.com · checked 2026-08-27
8 years Infant seats, as stated in the Light 'N Comfy 35 user guide dated 8.26.20
10 years Booster seats, as stated in the Rise and Rise LX user guide dated 9.26.22
CYBEX 6 years CYBEX infant car seats — CYBEX's own phrasing is "this infant seat", stated on the Cloud G Lux product page; the Aton G owner's manual states the same six-year figure for that infant seat cybex-online.com · checked 2026-08-27
8 years CYBEX booster seats — CYBEX's own category-wide phrasing "CYBEX boosters", stated on the Solution G2 product page
10 years The Sirona S convertible car seat — a model-specific statement on the Sirona S product page, not a statement about CYBEX convertibles generally
10 years The Callisto G 360 rotating car seat — a model-specific statement in the General FAQ on the Callisto G 360 product page, not a statement about CYBEX rotating seats generally
Diono 10 years All Diono car seats, per Diono's general help-center article "Is my car seat expired?" diono.zendesk.com · checked 2026-08-27
10 years The Radian line, per each Radian model's own help-center article (the sentence quoted here is the Radian 3RXT SafePlus Max article's)
8 years All Diono booster seats, per Diono's help-center article "When does my booster seat expire?"
8 years The LiteClik 30 R and LiteClik 30 XT SafePlus infant seats and the Quantum 4 travel system, each per its own help-center article (the sentence quoted here is the LiteClik 30 R SafePlus article's)
Doona 6 years Doona Car Seat & Strollers manufactured before July 1, 2026, as stated on Doona's support FAQ doona.com · checked 2026-08-27
7 years Doona Car Seat & Strollers manufactured on or after July 1, 2026, as stated on Doona's support FAQ
6 years Doona seats with no manufacture-date condition, as stated in Doona's myths-vs-facts parenting-tips article
Evenflo 10 years All Evenflo car seats and booster seats, per Evenflo's article dated March 17, 2026; Evenflo adds on that page that a seat manufactured before January 2025 may have a different date evenflo.com · checked 2026-08-27
6 years All Evenflo car seats — the default on Evenflo's FAQ page, which is still live and states a different figure from the March 2026 article
8 years The Symphony car seat line, named as the exception in Evenflo's FAQ answer "How long is the life span of my Evenflo car seat?" — the page whose 6-year default Evenflo's March 2026 article contradicts; Evenflo's own tiebreaker is the date on the seat you own
8 years The Evenflo Transitions and Evenflo Evolve 3-in-1 combination car seats, named in the same Evenflo FAQ answer — the page whose 6-year default Evenflo's March 2026 article contradicts; Evenflo's own tiebreaker is the date on the seat you own
10 years The Evenflo Gold Revolve360 all-in-one, named in Evenflo's article "Your Most Common Car Seat Questions, Answered!" (March 28, 2022), which states a 6-year default for other seats in the same passage; Evenflo's own tiebreaker is the date on the seat you own
Graco 10 years Belt-positioning boosters and harnessed seats with steel-reinforced belt paths gracobaby.com · checked 2026-08-27
7 years Harnessed seats with plastic-reinforced belt paths (Graco's own example: the Contender 65 Convertible Car Seat)
10 years Seats whose own Graco instruction manual states this figure under "Car Seat's Useful Life" — the Extend2Fit Convertible (PD348857C), the 4Ever DLX (NWL0001677298C) and the SlimFit (NWL0001647913B)
7 years Seats whose own Graco instruction manual states this figure under "Car Seat's Useful Life" — the SnugRide 35 infant car seat (PD284963A 11/14; Graco's earlier SnugRide 35 manuals PD209338A and PD300300A state the same figure)
Maxi-Cosi 8 years Mico-series infant car seats. Read from the Mico 30 Infant Car Seat instruction manual (doc 4358-8113, 11.10.20); the identical sentence appears in the Mico Max 30 manual (4358-7953, 5.27.20), the Mico XP / Mico XP Max manual (4358-8074A, 9.3.20), the Mico Luxe manual (4358-8317A, 9.21.22) and the Mico Pro manual (4358-8663, 4.16.25). maxicosi.com · checked 2026-08-27
8 years The Mico Infant Car Seat Base, whose manual states it fits Mico Nxt, Mico AP, Mico 30 and Mico Max 30 (doc 4358-7395, 4.11.18). The base runs its own 8-year clock from its own date of manufacture, separate from the seat shell's.
10 years Pria convertible / all-in-one car seats. Read from the "Pria 3 in 1 / Pria All-in-One Convertible Car Seat" manual (doc 4358-8197, 4.27.22); the identical sentence appears in the "Pria Chill All-in-One / Pria Max All-in-One / Pria All-in-One Convertible Car Seat" manual (doc 4358-8405, 8.11.23).
12 years The Magellan XP All-in-One Car Seat. Read from its instruction manual (doc 4358-7823, 8.26.19). This is the top of the eight-to-twelve range the maxicosi.com support page states.
Nuna 10 years The RAVA convertible car seat, as stated in the RAVA user manual (the same sentence in three revisions: IM_001397A, 372d and cc4c; the 372d revision capitalises "Child Restraint") nunababy.com · checked 2026-08-27
10 years The EXEC all-in-one car seat, as stated in the EXEC user manual
10 years The AACE booster seat, as stated in the AACE user manual
Peg Perego 7 years Infant Car Seats, on Peg Perego's car seat expiration policy page — counted from the date of original purchase, with the date on the seat as Peg Perego's stated fallback pegperego.com · checked 2026-08-27
10 years Convertible Car Seats, on Peg Perego's car seat expiration policy page — counted from the date of original purchase, with the date on the seat as Peg Perego's stated fallback
12 years Booster Seats, on Peg Perego's car seat expiration policy page — counted from the date of original purchase, with the date on the seat as Peg Perego's stated fallback
12 years Primo Viaggio All in One, in its own USA instruction manual FIUS2402I348 (warnings section) — 12 years, where the policy page assigns 10 years to "Convertible Car Seats"
Safety 1st 10 years The Grow and Go™ Car Seat, per the Grow and Go owner-center FAQ on safety1st.com safety1st.com · checked 2026-08-27
10 years The seat covered by the Grow and Go™ / EverFit All-in-One Convertible instruction manual, item 4358-8705 rev. 05.12.25, under its "Expiration" heading
8 years The seats covered by the onBoard 35, onBoard 35 Air, onBoard 35 Air +, onBoard Air 360 infant-seat instruction manual, item 4358-8078 rev. 8.26.20, under its "Expiration" heading
UPPAbaby 10 years All car seats, per the "10 Year Product Lifetime Warranty" section of UPPAbaby's warranty page — warranty-lifetime wording, not an expiration instruction uppababy.com · checked 2026-08-27
10 years The Mesa V3 infant car seat, under "NOTICE OF EXPIRATION" on p.4 of the Mesa V3 manual
7 years The MESA V2 infant car seat, under "NOTICE OF EXPIRATION" on p.6 of the MESA V2 product manual
10 years The KNOX convertible car seat, in the manual's warnings and general safety instructions
10 years The Alta V2 booster, per the warranty "lifetime" definition printed in the Alta V2 manual — that manual states no separate years-to-expiration figure
7 years The original MESA and the MESA MAX infant car seats, under "NOTICE OF EXPIRATION" in each seat's own UPPAbaby product manual — MESA (1017-MSA-MANUAL-US) p.4 and MESA MAX (1001-MSM-US, 09/2023) p.6, both linked from UPPAbaby's own manuals page

Each row is the maker's own published statement, quoted in full on that maker's page along with the link and the date it was last read.

How to read the table for your seat

Start with the middle column, not the years. A maker that states one figure for infant seats and another for boosters is not being vague — it is telling you the figure follows the seat, so the row that matters is the one describing the seat in your car. Where a maker scopes by construction rather than category, as Graco does with steel- against plastic-reinforced belt paths, the seat's own manual or the text stamped into the shell says which applies.

The label on your seat is authoritative; this page is a reference. If the shell says something different from the row above, the shell wins and we would like to know.

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