Toyota New Zealand is voluntarily recalling all 260 2010 Prius models it has sold to update the braking system software.

Customers in America and Japan had reported a slight delay in braking reaction on some surfaces. However the brakes were working, Toyota NZ chief executive Alistair Davis told the New Zealand Press Association (NZPA).

Toyota was writing to the 260 New Zealand owners to assure them the company had complete confidence in the system, and had decided to launch a voluntary recall of the vehicles to change the software.

The fault, which the company said was not dangerous, was corrected in assembly line cars last month.

Reports elsewhere over the weekend suggested the company would announce a recall of around 3,500 vehicles in the UK with many times that number worldwide.