GM Service Manual Online
For 1990-2009 cars only

Programming Theft Deterrent System Components

Important: When replacing a theft deterrent module (TDM), ensure the procedure to setup a new theft deterrent module is performed prior to the key coding procedure.

Set Up a New Theft Deterrent Module

From the scan main menu, select service programming system, then follow the instructions on the screen.

Key Coding Procedure

Important: Use only a master key when performing the first relearn procedure. If a valet key is used first, the TDM will not allow additional keys to be learned.

Use this procedure after replacing any of the following components:

    • The vehicle keys
    • The TDM
    • The ECM

Important: When replacing a TDM, ensure the procedure to setup a new theft deterrent module is performed prior to the key coding procedure.

From the scan main menu, select service programming system, then follow the instructions on the screen.