iGO [Street Mode] - Incorrect units displayed (miles instead of kilometres per hour, etc.)

The Navigator products come configured for use in Australia, and therefore have units set to the metric system to suit.

If the street navigation software (iGO) displays the incorrect units, it is likely that the settings have been changed from the defaults.

To change them back, simply go to Settings, then scroll down to where you can see Regional, then tap Regional.

On the Regional settings panel, tap the Units and Formats option

On the Units and Formats panel, tap the Distance option until you have the required setting (which should be Kilometres/metres for Australia)