ACC head of injury prevention Isaac Carlson said the campaign, entitled "Preventable', aimed to improve wellbeing by decreasing the number and severity of injuries.
The corporation accepts more than 2 million claims every year in NZ, which equates to more than 5000 injury claims a day nationwide – at a cost of more than $4 billion annually.
It is estimated 90 per cent of injuries are preventable.
Carlson said ACC was urging New Zealanders to "have a Hmmm ... " because by taking a moment to prevent injury, Kiwis can keep doing the things they love and keep from harming others around them.
"It's important to take a moment to think about what you are about to do and think about what could go wrong to prevent injury," he said.
Carlson said taking a pause could save days, weeks, months or a lifetime of harm and hurt – for the person and others.
"Injury harm continues to be unacceptably high, which impacts the wellbeing of the entire country. We can all collectively do more to look out for ourselves and each other."
ACC has pledged to invest $7.6m into the campaign over the next two years, forming part of its $80m-per-annum investment into injury prevention.
Carlson said the "bring it on" attitude Kiwis often displayed could lead to mistakes and injuries.
"They often unwittingly put themselves in harm's way in their role of helping others – often rushing, being tired or not concentrating on themselves and their space," he said.