Tail Light issues are fairly simple to diagnose the root cause and are typically traced back to either the tail light, DC/DC converter, or one of the brake lever sensors.  Follow the steps outlined in this article to confirm the root cause.

Check the Connections

• Begin by inspecting the wires for any signs of damage and ensure that all connections are securely linked. If there is no visible damage, proceed to the troubleshooting steps outlined below.

Troubleshooting Steps and Tips

• If the tail light is not turning on or functioning correctly, it might indicate a replacement is needed, provided the issue is isolated to the tail light alone.
  • Symptoms that your tail light is not working properly:
    • The tail light does not turn on at all.
    • The tail light only turns on when the headlight is turned on.
    • The tail light is always on, but does not get brighter when the brake levers are pressed.

• To determine the root cause, follow the steps below:
  • Confirm if your headlight is working properly. 
    • If the headlight is operating as expected but the tail light is only turning on when the head light is activated or the tail light is not working at all, it is most likely that the root cause is the tail light.
    • If you find that both your head light and tail light are not operating properly, the DC/DC converter is most likely the root cause as both lights rely on this component to function normally.
    • If you find that the tail light is always on but does not get brighter when the brake levers are pressed, do the following:
      • Confirm if the motor is operating properly.
        • If the motor is operating properly, then the root cause is the tail light.
        • If the motor is not operating properly, complete the following steps:
          • Make note of how bright the tail light is in appearance.
          • Turn the bike off
          • At each brake lever, find the wiring connection for the motor inhibitor sensor and disconnect the pull apart connection point for each.  These connectors should be colored red on the inside when pulled apart.
          • Turn the bike back on and see if the tail light exhibits the same brightness as before or if it seems dimmer.
          • If the brightness of the tail light is dimmer with the brake lever sensors unplugged, turn the bike off, plug one of the two levers back in, turn it back on and see if the brightness changes when you press the brake lever.
            • If you find that one of the two levers is affecting the brightness of the tail light, then one of your brake lever sensors is the root cause of the issue.
          • If the tail light brightness does not appear to change with the sensors unplugged or plugged back in individually, the root cause is the tail light.

• Once the above steps have been completed and you have determined the root cause, submit a support request to our customer service team with your troubleshooting results to get set up with the appropriate resolution.  Resolution could require an adjustment to one of the vehicle components or require a replacement part depending on the results, and the customer service team will be able to provide you guidance on the appropriate steps to follow to get your vehicle back to normal operation based on the above information.

Please note: If your vehicle arrives with shipping damage or factory defects to the tail light, you are eligible for a replacement tail light to be covered under warranty. However, damages resulting from user error will not be covered by your warranty agreement.