THEFTLOCK® is designed to discourage theft of your vehicle's radio. The feature works automatically by learning a portion of the Vehicle Identification Number (VIN). If the radio is moved to a different vehicle, it will not operate and LOCKED will appear on the display.

When the ignition is off and RAP is not active, the blinking red light indicates that THEFTLOCK® is armed.

With THEFTLOCK® activated, the radio will not operate if stolen.