Cobra 3865 Manual

: If the alarm went off while you were away, the LED will flash a specific number of times to tell you which sensor triggered it (e.g., 1 flash for doors, 2 for ultrasonic sensors). 3. Emergency Override (PIN Code)

If the remote fails, you can disarm the system using a unique four-digit PIN code. This is entered via a dashboard-mounted button and acknowledged by a flashing red LED. LED Diagnostic Codes cobra 3865 manual

If you experience frequent false alarms, the ultrasonic sensitivity may be set too high. This usually requires a professional installer to adjust via the main control unit. Conclusion : If the alarm went off while you

: The system is fully armed and monitoring the vehicle. LED Off : The system is disarmed. 1 flash for doors