This mode simply shows a live speed value. The square button has no function in this mode.
Speed Mode Setup
The number of decimal places can be changed from either 0, 1 or 2. Speed values can also be set to display in either km/h, mph or kts. All of these changes are made within within MENU > DISPLAY MENU.
Within the display menu, if the 'SPEED DECIMAL PLACES' option is highlighted, pressing the square button will cycle through 0, 1 and 2 decimal places.
Within the display menu, if the 'SPEED UNITS' option is highlighted, pressing the square button will cycle through KPH, MPH and KNOTS.