"A rectification by Suzuki Motor Corporation is currently being implemented and delivery of modified brake components is expected in the coming weeks," it said.
"Safety is of the utmost importance to Suzuki and it expects to return vehicles to customers as soon as is possible. Suzuki would like to take this opportunity to apologise to its customers and also thank them for their understanding and patience regarding this issue."
The failures are thought to affect only a handful of new right-hand-drive models.
During an emergency stop test from 80mph (128km/h) under controlled conditions at Millbrook Proving Ground, the Celerio's brakes failed entirely, with the brake pedal remaining in the fully depressed position yet having no effect on the car's speed, said Autocar.
Suzuki collected and inspected the failed car and also supplied a second so that testing could continue, but the second car displayed the same failure.
The launch of the Celerio is on hold in New Zealand following reports of the high-speed brake failure.
But we will have a higher-spec version of the Celerio than European customers, such as head-protecting side curtain airbags and seatbelt reminders for both front and back occupants.
Despite those inclusions, the Celerio did not receive a top Ancap safety rating because it lacked some safety features that would have given it five stars.
New Zealand's Automobile Association's Motoring Services general manager Stella Stocks said it was positive that side curtain airbags were included in the model that would be offered to the New Zealand market.
"Airbags save lives. No one should consider buying a brand-new car that doesn't include side curtain airbags as standard today," said Stocks.
"It's pleasing that Suzuki is responding to the messages both Ancap and the AA have been repeating for more than a decade with the Celerio, despite not including side curtain airbags in its European model."
