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19 Jan 2022

Safety alert: defective harness buckle on Cosatto All-in-All car seats recalled

Cosatto is offering a free replacement buckle for those affected by the safety issue
Child in Cosatto car seat

UPDATE 11/02/22: Littlewoods has also put out a product safety notice for selected models of the Cosatto All in All+ car seat sold via their website due to the buckle issue. Affected products are PJVMF, PJVMG, PJVMH, PYAC6, PYYE7, PYYE9, QLKTU, and were manufactured between September 2019 and June 2020.


Cosatto has issued a safety alert for the buckle on its All in All+ and All in All Rotate car seats, due to potentially defective components used in the manufacture of the affected buckles.

Cosatto is offering a free replacement buckle for all those that purchased an affected product.

Customers who own one of these multi-group car seats (Groups 0+/1/2/3) for children from birth up to 36kg (approximately 12 years old) should stop using the car seat immediately and contact Cosatto.

Read on for the full details of how to find out if you're affected by this safety notice, and what to do if you are.

Which models are affected?

If you've purchased one of the following models of Cosatto car seat, and it has a batch number between 37/2019 and 24/2020 then it is affected by this safety alert.

All in All+ car seats

  • Dragon Kingdom (model number CT4262)
  • Unicorn Land (model number CT4238)
  • Harewood (model number CT4239)
  • Mister Fox (model number CT4241)

All in All Rotate car seats

  • Sea Monsters (model number CT4263)
  • Fairy Garden (model number CT4242)
  • Fika Forest (model number CT4243)
  • Hedgerow (model number CT4486)
  • Hear Us Roar (model number CT4418)
  • On The Prowl (model number CT4451)
  • One World (model number CT4449)

Locating the batch number

cosatto diagram showing batch number on car seats

Only batch numbers between 37/2019 and 24/2020 are affected. All car seats from later batches are not affected.

To find the batch number on your Cosatto car seat look at the rear of the seat. There should be a sticker on the right-hand side - the batch number is the right-most number and has the form (WW/YYYY).

If you are still unsure if your product is affected, use Cosatto's online form to check and order a replacement buckle.

What should you do if you own a car seat that's affected?

If you have purchased one of the affected models you should stop using the car seat and contact Cosatto to order a replacement buckle.

If you have already registered your car seat purchase with Cosatto, then the company should have already been in contact about the issue and to organise a replacement buckle.

If not, you can:

The replacement buckle should be dispatched on a next working day delivery service.

Cosatto has videos on how to replace the buckle safely on its website.

What does the manufacturer say?

'As part of an ongoing program of continual product assessment, we have identified a potential safety concern relating to the buckle used in the production of a small batch of car seats manufactured between September 2019 and June 2020 as shown.

'Unfortunately, the manufacture of some of the buckles did not reach the exacting standards set by our quality and safety protocol and contain components that can potentially become defective.

'We are truly sorry that this has happened. We are a values-driven, family business who want to do the right thing and have taken this action to ensure the safety and wellbeing of the children of valued customers like you.'

Which? car seat testing

parent strapping child into car seat

We haven't tested the Cosatto All in All+ or All in All Rotate car seats, but we have tested models for a range of ages.

While other websites publish car seat reviews based only on ease of use or comfort, we go the extra mile to ensure a car seat we recommend is safe by putting it through tough crash tests. We:

  • Crash-test each child car seat - our tests are derived from Euro NCAP safety tests and are more demanding than the legal minimum regulations.
  • Carry out fitting checks - so we can tell you which are easiest to fit and get your child strapped into, and which might carry a risk of incorrect installation.

We also use real parents and their children to give their thoughts on the seat, including ease of installation and comfort for their child.

Read more about how we test car seats and take a look at some of our Best Buy child car seats.