The "UP" and "DOWN" references below are in regards to the arrow buttons on top of the control. The "MODE" button is on the front of the control, facing the rider.
POWER ON/OFF = Hold MODE
TRIP/ODO Toggle = Tap MODE
Backlight Display = Hold UP
WALK Mode = Hold DOWN (use caution here -- the bike will move forward at 2mph as long as the DOWN button is pressed)
Reset TRIP = Hold MODE and DOWN
AVG/MAX/CURRENT SPEED Toggle = Hold MODE and UP
NOTE: the latest version of this display does not have a USB port.