Patent ID: 7272469
Filing Date: 2007-09-18
Classification: B60R

Abstract:
1. A vehicle immobilization system comprising: a microprocessor connected to at least one critical run circuit of a vehicle, the microprocessor operable in a run mode and an armed mode; an input system, operatively connected to the microprocessor, configured to provide user input to the microprocessor; at least one sensor, operatively connected to the microprocessor, for configured to trigger the microprocessor to enter the armed mode; wherein the microprocessor is responsive to a tampering event to initiate a vehicle shut-down sequence in the run and armed modes and the microprocessor is also responsive to a first activation of the at least one sensor to initiate the armed mode, and wherein the microprocessor is also operable in a maintenance mode and requires entry of a maintenance code to enter the maintenance mode the maintenance mode being defined as a mode during which a tampering event will not initiate the vehicle shut-down sequence and wherein the armed mode requires user input to the input system to return the microprocessor to the run mode.