Error Description: 

Controller, MOSFET Over Temperature

Troubleshooting Steps:

Power off the bike and remove the battery. The controller has overheated. Please keep the battery removed and wait 5 minutes for the controller to cool down before restarting.

Do not touch the controller or motor at this time as they may be hot.

If the error is still present after 5 minutes, the controller may require additional time to cool down.

Please restart the system. If the issue persists please contact your local retailer or Specialized Rider Care.

Note: 

This is normal system behavior in scenarios where the bike is fully loaded and you are climbing steep hills.