Set Up A New Theft Deterrent Control Module

CAUTION:

When replacing a theft deterrent control module with an GM SPO replacement part, the theft deterrent control module will learn the keys immediately. The existing ECM must learn the fuel continue password of the replacement theft deterrent control module.
When replacing an ECM with a GM SPO replacement part, the new ECM will learn the incoming fuel continue password of the theft deterrent control module immediately upon the next ignition switch cycle from OFF to CRANK. An ECM which had been installed in another vehicle will have learned the fuel continue password of the other vehicle's theft deterrent control module. Perform either the 10-minute relearn procedure or 30-minute relearn procedure to learn the fuel continue password of the current vehicle's theft deterrent control module.
When performing either relearn procedure, all previously learned keys will be erased from the theft deterrent control module's memory.
Additional keys may be learned after the first relearn procedure by inserting the additional key and turning the ignition to RUN within 10 seconds of removing the previously learned key.
Use only a master key when performing the first relearn procedure. If you use a valet key first, the theft deterrent control module will not allow additional keys to be learned.

Use this procedure only if replacing the theft deterrent control module with an GM SPO Replacement Part.

Connect scan tool to vehicle.
Turn ignition on, with engine off.
Using scan tool, select Setup New VTD Module in the Vehicle Theft Deterrent, Special Functions data list.
Follow scan tool on-screen instructions.