The 4 LEDs at the top of the unit provide visual feedback dependent on what process is being performed:
- Accel/Decel Mode: If Alert at End is enabled, the LEDs will flash green for 0.5 s once the test end criteria are met.
- Lap Timing Mode:
- The LEDs provide a live reference lap speed comparison (Delta-V).
- The LEDs will illuminate blue during the process of creating a Reference Lap.
- When loading a Track Database file, the progress of the track database update is displayed via the LEDs; each lit LED will represent 25% of the process with all LEDs extinguishing when the process is complete.
- When a Track Layout is changed, the LEDs will briefly flash green twice.
- When a Finish Line is cleared, the LEDs will briefly flash green twice.
- When a Standing Start is Enabled or Disabled, the LEDs will briefly flash green twice.
- Speed Mode: If a Target Speed LED Alert has been set, the LEDs will flash green when the value is reached.
- Screenshot: If a screenshot has been saved successfully, the LEDs will illuminate yellow in sequence from left to right to display the progress of writing to the SD card.
- Reset: The LEDs will briefly flash green twice when a screen has been reset.
- Battery (if installed): If the battery has run out of charge, the LEDs will flash red five times before the unit turns off.