Hi David,

You can do it yourself. Make sure the headlights are turned off. Put the key in the ignition and turn it to the first 'click' - the one for "accessory". After the odometer reading shows up on the dashboard, hold down your trip reset button. This will change the units of the speedometer. Note that it does not alter the units of the odometer, but that doesn't sound to be what you need in this case.