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Method and apparatus for reprogramming a vehicle component

  • US 10,030,590 B2
  • Filed: 03/20/2014
  • Issued: 07/24/2018
  • Est. Priority Date: 03/20/2014
  • Status: Active Grant
First Claim
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1. A method for reprogramming a motor vehicle immobilizer, the method comprising:

  • operating a wireless fob for a motor vehicle, which has a transponder and read/write memory to thereby cause the wireless fob to transmit from the transponder;

    a first key identification number that uniquely corresponds to the motor vehicle, and a programming sequence present signal;

    receiving both the first key identification number and the programming sequence present signal at the immobilizer, the programming sequence present signal indicating to the immobilizer that the transponder in the wireless fob has a key identification number update sequence for the immobilizer, the key identification number update sequence causing the immobilizer to recognized a second and different key identification number to thereafter be used by the wireless fob;

    receiving the key identification number update sequence at the immobilizer if the first key identification number received with the programming sequence present signal matches a key identification number stored in the immobilizer; and

    after the key identification number update sequence is successfully received by the immobilizer, enabling the motor vehicle to operate on a reception of the second key identification number from the wireless fob by the immobilizer.

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