A high-end car seat brand has recalled one of its products due to a defect that could mean children are left unrestrained.

The Maxi-Cosi Euro A2 Convertible Car Seat was sold to 41 people from April this year, through The Baby Factory.

It was recalled this week, well after the same product was recalled in Australia on June 24.

In Australia, the Maxi-Cosi Euro A4 Convertible Car Seat was also recalled, for the same reasons.

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The car seats retail in New Zealand for approximately $600 in New Zealand.

According to the recall notice on the Government's Consumer Affairs website, the fabric around the car seat's harness adjuster could get caught, allowing the shoulder harnesses to loosen without lifting the adjuster.

"If the harness is loosened the child restraint is no longer effective in restraining the child in the event of an accident or sudden braking, increasing the risk of injury," the notice says.

People with the car seats made between September 16, 2014 and March 12, 2015 are advised to contact manufacturers IGC Dorel to arrange for free replacement of the car seat's trim.

"To use the car seat safely in the interim, please ensure that the harness adjustor is free from any impediments when fitting a child into the seat."

• To arrange a replacement car seat cover Email: customerservice@igc.co.nz or call 0800 628 000.