Acting Inspector Steve Dickson said it was important motorists adhered to the speed limit, and reduced their speed depending on the road conditions.
"Northland roads are often narrow and windy," he said.
"The faster you drive, the higher your chances of being involved in a crash. As your speed increases, the distance you need in order to stop safely increases and it's more likely you may lose control if you experience an unexpected change in road conditions."
Dickson said when motorists get in a vehicle, they should always wear their seat belt, stick to the speed limit, avoid distractions such as cellphones and never drive while under the influence of alcohol or drugs.
Sunday's crash was at least the 107th time a vehicle has hit a power pole in Northland since 2016.