The odometer and other travel logs are governed by the Ranger’s Trip Computer, which is displayed via a digital screen in the center of the dashboard. You can navigate the travel computer using the five-way directional and selection buttons on the lefthand side of the steering wheel.
Cycle through the trip computer’s options until you reach either the one labeled Trip Odometer, Trip Timer, or Average Fuel. While on one of those screens, press and hold the OK button.
Keep holding it until the loading bar appears. That loading bar indicates that the computer is in the process of resetting the particular trip that you have selected. When that loading bar finishes, you will have successfully reset that specific trip!