When a car seat has to be replaced

A car seat can look perfect and still need replacing. The three reasons are all invisible from the outside, which is why they get missed.

Expiry dates are real

Every seat carries a manufacture date and an expiry date, usually six to ten years apart depending on the maker. The plastic shell is a structural component and it ages: repeated heat cycling in a parked car, ultraviolet exposure and simple time all reduce its impact performance.

The date is moulded into the shell or on a label on the base. Check it before buying, and check it again before passing a seat on to another family.

After a crash

Guidance from safety authorities is that a seat should be replaced after a moderate or severe crash. For a minor crash, some manufacturers permit continued use if a specific list of conditions is met — no airbag deployment, no damage to the seat, the vehicle drivable, and so on.

Read the manufacturer’s own statement rather than a general rule, and if there is any doubt, replace. Most insurance policies cover the replacement.

Recalls

Recalls happen, and they are the main reason to register a seat with the manufacturer when you buy it. Registration exists solely so they can contact you, and the card takes two minutes.

You can also check a model against the published recall lists at any time. Do this before using any seat that has been out of your possession.

Missing parts and modifications

A seat missing its manual, its harness pads or its lock-off is not automatically unusable, but it is unusable until you have the correct replacement part from the manufacturer. Substituting parts from another seat, or adding aftermarket accessories not sold by the maker, invalidates the certification and can change how the seat performs.

That includes strap covers, head supports and seat protectors that did not come in the box.

Used seats

The problem with a used seat is not usually its condition; it is that you cannot verify its history. A seat that has been in a crash looks identical to one that has not. Unless it comes from someone you know well enough to be certain, buy new.

This is the one item on a nursery list where the second-hand market is genuinely not worth the saving.

Storage and heat

A seat left in a hot car for years ages faster than one in a temperate garage, and neither is as good as a seat that is simply in use. If a seat is stored between children, keep it indoors, out of sunlight, with the manual taped to it.

Check the expiry date before bringing a stored seat back into service; several years may have passed.

Cleaning without damaging it

Follow the manual. Harness webbing must never be machine washed, bleached or soaked in detergent, because that weakens the fibres invisibly. Covers are usually removable and washable at a low temperature.

Wipe the harness with a damp cloth and mild soap only. A weakened harness is exactly the kind of fault that shows up at the worst moment.

Disposing of an expired seat

Cut the harness straps and mark the shell before it goes out, so it cannot be picked up and reused by someone who does not know its history. Some areas run recycling schemes for car seats; it is worth checking locally.

If you are replacing a seat and want help matching a new one to your car and child, bring the old seat and the vehicle to the counter on Northern Boulevard.

Registering the seat, and why it is worth two minutes

The registration card in the box exists for one purpose: so the manufacturer can contact you if the model is recalled. It is not a marketing list and there is no obligation attached. Most makers now allow registration online in less time than filling in the card.

If you bought the seat some time ago and never registered it, you still can — the model number and manufacture date from the shell label are all that is needed. It is the single cheapest safety measure available to a car seat owner.

What “expired” actually means in practice

An expiry date is not a cliff edge on a particular morning; it is the point past which the manufacturer no longer certifies the seat’s performance. Plastics become more brittle with heat cycling and ultraviolet exposure, harness webbing stiffens, and labels and manuals become illegible or lost.

A seat that has lived in a hot car for six years has aged more than one stored indoors for the same period. Where a date is close and the seat has had a hard life, replacing early is the cautious call — and a seat past its date should be retired rather than passed on.

The short version

• Every seat has an expiry date moulded or printed on the shell.
• Replace after a moderate or severe crash; check the manufacturer for minor ones.
• Register the seat so you are told about recalls.
• Never buy a used seat whose history you cannot verify.

From our shelves

• Safety 1st Ellaris 3-in-1 Convertible Car Seat, Slim Fit Design, Rear & Forward-Facing — $99.99
• UPPAbaby Rove Convertible Car Seat – 2-in-1 Rear & Forward Facing – Kavneer — $499.99
• Safety 1st Grow and Go All-in-One Convertible Car Seat, Rear Facing, 5-40 lbs — $139.99

Where to go next

Browse the full range on the shop page, read the frequently asked questions before ordering, or check delivery timing on the Shipping Policy page. If you would rather ask a person, contact us — the phone reaches the counter.