The trailer brake status indicator light is a safety feature designed to alert the driver when there are problems with the brakes on their trailer. This light will illuminate if there is an issue with either the brakes or electric system, such as a broken cable or wiring problem, and it can also indicate low fluid levels in the braking systems. It's important for drivers to pay attention to this light because it could be indicative of a serious problem that needs immediate attention. If you see your trailer brake status indicator light illuminated, you should immediately check your brakes and electric system for any issues. If necessary, seek professional help from a certified mechanic who can diagnose and repair any potential problems before they become more serious.